Dr who regeneration how many times

When the Tenth Doctor tried to attach his brain to the CAL Data Core , believing he could regenerate and provide the extra memory space, River pointed out it would outright kill him by burning out both of his hearts, so she took his place. TV : Forest of the Dead The Master's upgraded laser screwdriver could disable the regenerative process if its target received a full blast on its maximum setting. TV : The Doctor Falls While not explicitly demonstrated, the Master at least believed that Janis thorns could prevent regeneration, as he went to great lengths to brainwash Leela so that she would use the thorns against the Fourth Doctor, the Doctor only surviving this experience as he was able to help Leela break the Master's programming in time for her to inject him with the antidote.

River Song and the Silence believed that a Time Lord could die permanently if killed "again" at the right time during the regenerative process. This appeared to be verified when River, controlled by the Silence, seemingly managed to kill the Eleventh Doctor permanently after he began to regenerate at Lake Silencio , TV : The Impossible Astronaut although unbeknownst to the Silence, the Doctor she shot was actually a simulacrum, the Teselecta , used by the Doctor to fake his death.

Certain injuries only had a chance of causing regeneration if left untreated; when the Doctor was paralysed from the waist down after a spaceship crash, he expressed concern that he would regenerate if he passed out while being transported, but he made it back to the TARDIS without regenerating and was able to find healing nanites that could repair his back. Some injuries were so serious that they could not be treated by regeneration; when the Time Lady Solenti was blinded, she spent ninety-one years uncertain if she would ever regain her sight, although a telepathic exchange with a pan-dimensional race allowed her to confirm that the neural pathways for sight in her brain were still intact and she would be able to see again once she regenerated, even if she decided that she would not regenerate just to regain her vision.

According to some accounts, the regenerative process could only kick in when the body was still alive to some extent; as a result, final deaths could occur too quickly for the body to regenerate, as evidenced by how an alternate version of the Tenth Doctor died because he was drowned confronting the Empress of the Racnoss. TV : Turn Left When facing the Word Lord , the Seventh Doctor sacrificed himself to stop Nobody No-One by using a tablet linked to the Trans-Galactic net to hit Nobody with the full force of the stories collected about himself, at the cost of frying his own mind, causing so much damage that he expressed a belief that this would kill him even before the Word Lord tricked a UNIT soldier into declaring "Nobody can stop the Doctor from regenerating" which gave the Word Lord the power to do just that.

Fortunately, this sacrifice was undone when the Seventh Doctor's future self - currently present at the death of his past self after his own attempt to trap the Word Lord - set up a complex plan that allowed Ace to subvert the Word Lord's power to rewrite reality so that she could undo the Doctor's death, restoring him to life in his seventh body with no need for regeneration. AUDIO : A Death in the Family However, in other accounts, regeneration could occur even after the previous incarnation's body had completely died, or indeed, been dead for some time — although this could result in some "growing pains" for the new incarnation, who might deal with such conditions as amnesia.

Stabbing or shooting a Time Lord through both hearts at the same time would kill them. PROSE : The Shadows of Avalon , World Game Missy recommended eight snipers , with two trained on each of her hearts and three for her brain stem , so that Clara Oswald could feel safe while speaking to her, noting that they'd have to "switch [her] off fast" before she could regenerate.

TV : The Magician's Apprentice Plans to execute a Time Lord relied on technology that would destroy both hearts, sever all three brain stems, and deliver a cellular shock to prevent regeneration, after which the subject would be left in a quantum vault for no less than a thousand years to ensure that regeneration would not occur.

TV : Extremis. Time Lords could also be injured beyond the point of regeneration, with copies of the Twelfth Doctor dying after contact with the Veil inside his confession dial. In such cases, the Doctor claimed that every cell in a Time Lord's body would continue attempting to regenerate, which could prolong their actual death for several days.

In his case, this gave each copy time to use the last of their energy to trigger a teleportation device and "create" a new body for their essence to continue trying to escape. TV : Heaven Sent. It was suggested that regeneration may not occur if the Time Lord lacked the will for it to do so. An alternate version of the Sixth Doctor was killed permanently by a Dalek, but this Doctor had been locked away in the Tower of London for decades after his legs had been amputated, and his mental state had significantly deteriorated, to the point that he may have wanted to die to escape his nightmarish existence.

PROSE : Lungbarrow When the Eighth Doctor was infected by anti-time and asked his companion Charley to kill him, while talking with his predecessors in his mind, he speculated that he was not regenerating because he had wanted to die out of grief and Charley's new hatred of what he had become, requiring support from his predecessors to allow the anti-time to take him over and let Zagreus defeat Rassilon.

He was later restored temporarily to life by the Sisterhood of Karn and provided with an elixir to trigger the regenerative process. TV : The Night of the Doctor The Ninth Doctor showed the same level of concern as his human companions did towards falling victim to the Gelth , suggesting regenerating was not an expected outcome.

TV : The Unquiet Dead When surrounded by Daleks, the Doctor was under the belief that he would die for good, remarking that "maybe it's time". TV : The Parting of the Ways. Certain environments could also be dangerous for regeneration, with the Fifth and Eighth Doctors going to great lengths to avoid dying in space. PROSE : Imperial Moon , The Taking of Planet 5 Malika believed that her regenerative processes would simply not activate in the vacuum of space, as her new incarnation would simply die all over again, rendering the process futile.

COMIC : Omega The Eighth Doctor instead recalled horror stories of Time Lords regenerating in such an environment, burning themselves out as their new bodies became increasingly twisted trying to "evolve" into something that could cope in a vacuum. PROSE : The Taking of Planet 5 However, safe regeneration from exposure to a vacuum was possible if the subject was returned to an oxygenated environment before the process initiated, with one Time Lord regenerating normally after being cast adrift in space before the War Doctor materialised his TARDIS around him and left him to regenerate in the ship's Zero Room.

PROSE : Engines of War The Fifth Doctor once noted that the important thing in regeneration was that the brain remained intact, with an early Gallifreyan being killed for good when she was shot in the brain at close range with a 26th century weapon.

Retro-genitor radiation was specifically created by the Daleks to inhibit regeneration. Roentgen radiation was relatively harmless so long as it was expelled quickly enough, TV : Smith and Jones and the Doctor was able to hold back his regeneration for several hours after being exposed to the radiation from the Immortality Gate. TV : Planet of the Spiders , Love and War When the Sixth Doctor was exposed to radiation on a Cyberman ship, he ran the risk of triggering a tortured sequence of regenerations where he would rapidly exhaust his remaining lives as the radiation damaged his cellular structure so that his subsequent incarnations would still suffer damage even after regeneration; as with his third incarnation's death from the Metebelis radiation, he only survived because he returned to the timeless stability of the TARDIS and was kept in a form of temporal stasis until his body had recovered.

The Fifth Doctor was not sure if he would be able to regenerate after contracting Spectrox toxaemia , and indeed the transition into his next incarnation occurred "not a moment too soon". PROSE : The Eight Doctors Particularly traumatic damage could cause a Time Lord to suffer regenerative collapse , which would kill them immediately regardless of how many lives they had remaining; the Sixth Doctor almost suffered this fate after a confrontation with Zor , requiring Captain Jack Harkness to give him medical attention and take his place for a time until the Doctor had recovered.

Due to the Time Lords' reliance on artron energy to power the regenerative process, an artron inhibitor could prevent Time Lords from regenerating, as well as limit their ability to heal from damage; when Time Lord agent Cuthbert Simpson attempted to track and trap Compassion with an inhibitor, his injuries were so serious that it took him decades to recover even after the field preventing him from regenerating was deactivated.

AUDIO : Legion of the Lost Dalek weapons also incorporated regeneration inhibitors, with the result that Daleks could kill Time Lords instantly, even if the High Council maintained the propaganda that regeneration would still be an option if Time Lords fell in battle. In the early days of regeneration, the process was so disruptive to a Time Lord's DNA that regenerations were known to incorporate aspects of what the Time Lords had recently eaten before regenerating.

While this defect had been corrected by the Doctor's era, the old Gallifreyan priest I. Foreman still had this defect in his system, resulting in his thirteen incarnations representing a wide range of genetic anomalies as he pushed his biodata envelope as far as it could go, culminating in his final incarnation "evolving" to become the vibrant new biosphere for an entire planet.

Ideally, regeneration would be undergone within a low-grade telepathic field. The presence of another Time Lord was recommended to assist with any difficulties, and the newly regenerated Time Lord best remained in a state of total tranquillity for a time afterwards to allow the mind and body to properly readjust. Time Lords usually had a limited cycle: twelve regenerations, consisting of thirteen incarnations , after which they would suffer permanent death, TV : The Deadly Assassin , Doctor Who , The Time of the Doctor except insofar as their minds, uploaded to the Matrix , lived on as Matrix Lords.

The Fourth Doctor told Romana that Time Lords had ninety lives, and that he had already gone through "about " of them; TV : The Creature from the Pit the Fifth Doctor , while in a state of confusion, later claimed the same thing.

TV : Death of the Doctor. As with most such "rules", there were occasional exceptions to the twelve regeneration limit: although Rassilon had originally found the twelve-regeneration cap to be absolute, forcing him to retreat into the Matrix as a disembodied mind to survive his final death, PROSE : The Legacy of Gallifrey the High Council , at later points in history, was capable of offering Time Lords a new lease of life in the form of a new regeneration cycle.

The Council offered the Master a new regeneration cycle if he rescued the various incarnations of the Doctor from the Death Zone. COMIC : Fast Asleep , TV : Utopia , Dark Water It was indicated that the Master possessed at least one more regeneration after this as he told his future self "don't bother trying to regenerate" after mortally wounding her with his laser screwdriver. TV : The Doctor Falls. The Spy Master 's discoveries about the Timeless Child in the Matrix suggested that the Child had originally possessed more regenerations than the typical twelve, and that it had been the Second Tecteun 's decision, when the Founder had shared the genetic gift of regeneration with his people , to limit the common folk's regenerations to a maximum of twelve times.

The Master believed that the Child had later become the Doctor , who had gone through a number of lives which even he couldn't even guess at. Despite not being able to regenerate any further, a Time Lord in their final incarnation retained a small amount of regeneration energy; just enough to mend broken bones once. TV : The Angels Take Manhattan Time Lords could will themselves to die by attempting to regenerate when they had no more regenerations left to use, as Azmael who was hosting the evil consciousness of Mestor , chose to do so to prevent it from escaping.

TV : The Twin Dilemma The Eleventh Doctor likewise threatened to use regeneration to hold off Mr Clever from taking over his mind, fully aware that he had expended his first regeneration cycle's allotted lives.

TV : Nightmare in Silver A Time Lord on their last regeneration could will themselves to effect a pseudo-regeneration which would cause their body to vanish into thin air.

TV : Shada. If they attempted to regenerate in earnest beyond their thirteenth and final body, a Time Lord's flesh could break down into degenerate matter and then into random molecules , as was the case for one particular Time Lord.

When the Third Doctor was too weak to regenerate, K'anpo Rimpoche gave him a "little push" to jump-start the process. However, doing so scrambled the Doctor's brain a bit.

In an attempt to end their perpetual cycle of rebirth, Mawdryn and his crew attempted to force the Fifth Doctor to sacrifice all eight of his remaining regenerations so that they could take his 'deaths' for themselves.

Although the Doctor rejected that request because he was unwilling to essentially kill himself eight times over in order to save this crew from their own mistake, he was willing to do so in order to cure his companions of an infection they had contracted from exposure to Mawdryn's crew.

However, the same necessary energy was released when the Brigadiers of and made contact with each other, the temporal energies released in the subsequent paradox serving the same purpose as the Doctor's eight regenerations. While regeneration was a natural Time Lord function, it was not an intrinsic part of their genetic makeup that could be acquired through simple DNA samples.

When the Forge created a clone of the Sixth Doctor , the most successful clone retained the Doctor's knowledge but was incapable of regenerating, although this may have been due to flaws in the Forge's cloning technology. AUDIO : Project Lazarus The Doctor was initially uncertain whether his "daughter" Jenny grown from harvested genetic material of his tenth incarnation could regenerate, and when he witnessed her dying of a gunshot wound, commented she wasn't "enough" like him with a fatalistic tone.

Jenny later returned to life unbeknownst to the Doctor in a burst of golden shimmering energy, but without changing her face; the energy resembled regeneration energy , but also the life-giving gasses of the Source.

After the Master was executed by the Daleks and transferred his essence into a human body , he attempted to use the Eye of Harmony in the Doctor's TARDIS to transfer the Eighth Doctor 's five remaining regenerations to him to restore himself to full life.

This plan failed when the Doctor's ally Grace Holloway set the TARDIS into temporal orbit , severing the link between the Eye and the Master, returning the Doctor's regenerations to him and leaving the Master once again trapped in a dying body, which was subsequently lost when he fell into the Eye.

During the War in Heaven , the Time Lords granted many of the lesser species the ability to regenerate, creating the regen-inf. When the Eleven discovered the Matrix print of the Time Lord scientist Artron , he was able to use the knowledge on the Matrix print and the Crucible of Souls - a space station previously designed to absorb life energy from the dying universe - to grant the entire universe of the present the ability to regenerate to become a new food source for the Ravenous.

The Doctor and three different incarnations of the Master were able to undo the Eleven's actions and restore mortality to the universe. The Sontarans were able to use the resulting artron energy released to power various temporal weapons, with the goal of opening a third front in the Time War, but the War Doctor was able to make telepathic contact with Vassarian as his mind was still active on some level.

While technically frozen in time, Vassarian revealed that he had lost so much energy through the Sontarans' actions that he would be unable to regenerate. The War Doctor helped him end his life so that the Sontarans would be destroyed by the Daleks. When the Third Doctor was drawn to a time period shortly after the Tenth Doctor had regenerated, the Tenth Doctor unknowingly drew on the energy of his past self to stabilise his own regeneration simply because the two Doctors were in close proximity to each other without either Doctor coming face-to-face.

The Third Doctor described the experience as energy osmosis as the weaker incarnation took energy from the stronger. The process caused the Third Doctor to feel a brief fatigue before returning to normal, whereas the Tenth Doctor was restored to full health. In one instance, the Tenth Doctor used up his first cycle's eleventh regeneration while still keeping the same face by channelling it into a hand TV : Journey's End , The Time of the Doctor which had been sliced off by the leader of the Sycorax , TV : The Christmas Invasion allowing himself to heal his body, yet avoid physical changes.

This energy remained active and was accidentally interacted with by a human , Donna Noble , triggering a two-way human-Time Lord meta-crisis which caused the hand to regenerate the missing body of its owner, creating a human-Time Lord copy of the Doctor and causing Donna to gain the mind of a Time Lord. However, the presence of two minds inhabiting Donna at once nearly destroyed her and the Doctor was forced to block all memories of him from her consciousness to stop her Time Lord half from remaining active.

TV : Journey's End. Dead Time Lords could be revived with regenerative energy, though the amount of energy required to do this was very large and took a physical toll on the donor.

Doing this, Melody Pond , in her third incarnation, sacrificed her ten remaining regenerations to save the Doctor's life after he was dying from a poison that would normally immobilise his ability to regenerate, and was hospitalised as a result. Even after having used all twelve of his regenerations, the Eleventh Doctor possessed enough regenerative energy to heal River Song's broken wrist , although she was angered at what she considered a waste of the energy.

Regenerative energy is transferred into Daleks, creating Time Lord-Dalek hybrids. TV : The Witch's Familiar. The Twelfth Doctor attempted to donate a small portion of regenerative energy to the dying Davros to give him the strength to see a final sunrise, speculating that this would cost him an arm or a leg at some future date or make him diminutive in stature , but Davros used this opportunity to siphon regeneration energy from the Doctor, and transmit it to all the Daleks across Skaro.

While the Daleks grew stronger, Davros gained several more years of life. TV : The Witch's Familiar It is unknown if the Doctor suffered any long-term consequences from this, as he was subsequently able to regenerate without complication, TV : Twice Upon a Time although the Thirteenth Doctor noted that "[her] legs definitely used to be longer" after attempting to jump between two cranes. An illusionary version of the Twelfth Doctor attempted to temporarily cure his current blindness by transferring energy from his own future, noting that it may cost him the ability to regenerate in a worst-case scenario.

The long-term consequences of this were not important as this Doctor was only a digital recreation. The Twelfth Doctor also demonstrated the ability to release regenerative energy at will without transferring it to anyone else, instead simply allowing it to dissipate. This allowed him to essentially fake a regeneration without changing. It is unclear how much energy this used, or how it may have affected his ability to regenerate in the future.

TV : The Lie of the Land. Generally, the regenerative process triggered itself when a Time Lord was too badly injured to survive; however, in some cases, Time Lords exercised control over the process. Romana I seemed to regenerate on a whim, TV : Destiny of the Daleks while Azmael deliberately attempted a thirteenth regeneration to end his life.

TV : The Twin Dilemma When badly injured without actually sustaining regeneration-inducing injuries, the regenerative platelets in a Time Lord's blood could activate to accelerate their ability to heal, allowing them to recover from serious injuries more quickly than a human would, AUDIO : The Bride of Peladon although particularly serious yet non-fatal damage would require the Time Lord to enter a healing coma to recuperate.

When Rallon was taken as a host by the Celestial Toymaker , he began to die after centuries bonded to the powerful entity, but was eventually able to die as himself by triggering all twelve of his regenerations at once after receiving a boost of telepathic energy, expelling the Toymaker from his body even if the strain of it killed him. After this mass regeneration, Rallon's Watcher - which had previously manifested as part of Rallon's plan against the Toymaker - merged with the Toymaker in Rallon's place, with the Watcher essentially acting as a new incarnation of Rallon, thus causing a similar change to the Toymaker's personality as though he had regenerated himself.

Unaware of his appearance, the Eleventh Doctor examines himself. TV : The End of Time. The degree of control that Time Lords had over their end appearance was unclear.

Her attempt failed, however, because she was not in love with the man she was engaged to, which was the catalyst for Phasing. She also commented that she might "take down the age a bit, just to freak people out," although she did not elaborate whether this was a joke or a literal intention. TV : Let's Kill Hitler Romana I seemed adept enough at the process to custom design her new form during what seemed to be a voluntary regeneration. The Doctor criticised Romana II for taking on the form of another person, suggesting such things were not unheard of.

TV : Destiny of the Daleks On an earlier occasion, Lord Roche was able to influence his next incarnation to be a double of the Third Doctor 's appearance when he regenerated after being hit by a bus despite having only briefly seen the Doctor.

PROSE : Lungbarrow Lake observed his fellow clones sometimes exhibited control over aspects of their next bodies and realised he could influence his own regeneration by focusing on a specific appearance he desired as he was regenerating. He used this knowledge to influence one of his incarnations into the identical form of a man he murdered in order to steal his identity. When it came to changing sexes during regeneration, however, a Time Lord had no say in the matter, unless the regeneration was triggered willingly.

In contrast to Romana , the Doctor did not seem to have much control over their post-regeneration appearance; after their fourth regeneration, the Fifth Doctor commented, "That's the trouble with regeneration, you never quite know what you're going to get. TV : The Parting of the Ways They also nearly always examined themselves or asked about their appearance. While skilled Time Lords could choose their new form with a voluntarily induced regeneration, the process could go horribly wrong and leave the Time Lord in a severely misshapen body.

This problem could be exacerbated by the Time Lord immediately starting another regeneration instead of obtaining medical assistance, amplifying the defects in the regeneration.

The end result of these abortive regenerations was inevitably a mutated monstrosity that could only be put out of its misery by complete disintegration. In cases where Time Lords could not choose their new appearance, it appeared that their bodies still had some degree of natural "control" over the forms they would take upon regenerating. The Third and Seventh Doctors were once given glimpses of what their next incarnations would look like without actually meeting their future selves, when the Third was briefly possessed by the Nurazh and nearly regenerated before his injuries were healed PROSE : The Touch of the Nurazh and when the Seventh encountered Elizabeth Klein and learned about her relationship with the version of him that existed in the timeline where Ace died at Colditz.

It was also suggested that the Time Lords had a subconscious control over their appearances; after the Twelfth Doctor's regeneration, he believed that he recognised his new face from somewhere, TV : Deep Breath but it took some time until he recognised it TV : The Girl Who Died as the face of Caecilius , TV : The Fires of Pompeii speculating that he 'chose' the face to remind himself that his purpose as the Doctor was to save people.

Some Time Lords were capable of momentarily regenerating, or partially regenerating. Though this could use up a lot of regenerative energy , it would give the Time Lord a new set of genes , allowing them to fool genetic sensors.

The Seventh Doctor used this method on the planet Purgatory to fool the genetic scanner used by the Imperial Landsknechte. Forcing an individual to regenerate could be used as a form of punishment and in these cases, the new appearance could be chosen or influenced by the condemned. Rassilon's gauntlet could be used to remove regenerations, or at least force a Time Lord to repeatedly regenerate until their remaining lives were exhausted.

The Sisterhood of Karn had elixirs that could trigger and control regeneration in a Time Lord who was dying and unable to regenerate normally or, in extreme cases, already dead. These elixirs could determine traits to be held by the new incarnation such as appearance, sex, apparent age, and personality. TV : The Night of the Doctor Though some "elixirs" were fake; a Time Lord could be tricked into willingly regenerating into the person they wished to become.

With effort, Time Lords could resist regeneration, effectively committing suicide. TV : Last of the Time Lords Similarly, the Fifth Doctor once threatened System with resisting regeneration to stop the device from learning the biological details of the act. TV : Vengeance on Varos Both the First and Twelfth Doctors at first refused to regenerate, with the First Doctor's appearance being slightly changed as a result, but eventually relented and went on to become their successive selves.

Rassilon had discovered a form of true immortality beyond the regenerations known to the Time Lords, but kept this a secret, believing it would be too dangerous to share. He went to the extreme of entombing the secret with himself in the Death Zone of Gallifrey and petrifying all those who came to inquire of the method. Borusa described Rassilon 's immortality as a "timeless, perpetual, bodily regeneration".

The ancient Gallifreyan scientist Artron found means of perfecting his own version of the regenerative process, which allowed the subject to regenerate swiftly but retain their original appearance and personality, with no limits on the number of times they could regenerate.

The Master agreed to this deal in return for them restoring his past self's ability to regenerate, although the Time Lords insisted that he only give himself a new regeneration cycle under the standard rules. After deciding to help the Doctor, Missy stabbed her past self in such a way that the wound was "precise", forcing him to regenerate but giving him a period of time before the process was triggered.

According to the Twelfth Doctor , there was a period of time that he called "a state of grace" when a dying Time Lord could resist regeneration for a period of time without consequence and were restored to full strength. During this period of time, the Time Lord had to choose whether or not they would ultimately regenerate or else they would grow weaker as time passed by. At this period's end, the Time Lord would either regenerate or die permanently. TV : Twice Upon a Time While a state of grace could be voluntary, some forms of death could induce a similar state unless they received aid.

After gaining many new bodies through Deathworm Morphant -aided body theft as opposed to any kind of regeneration, the Master was reverted to his decaying form and died, but ultimately gained a new regeneration cycle from his other incarnations.

In one later-aborted timeline, regenerated during the Last Great Time War of unknown causes into a childlike, but inwardly cunning, incarnation. Shot by Chantho after returning to his proper identity after years living as Professor Yana under the Chameleon Arch. TV : Utopia. According to one account, mortally wounded while fighting Rassilon. According to another account, the Master was stabbed in the back with a hidden dagger by his next incarnation in such a precise way that he had time to reach his TARDIS before regenerating.

TV : The Doctor Falls. Shot by the "Saxon" Master in a manner preventing normal regeneration, but managed to survive by creating an Elysian field to "kick start a new regeneration cycle". Unspecified incarnations between the Decayed Master 's meddling with the Eye of Harmony and the Fourth Doctor 's adventure opposite the Krikkitmen.

Regenerated due to the stress of the office of Lord President into a stubborn and grandiose incarnation who sought immortality in the Tomb of Rassilon. Was freed by Rassilon from the Tomb, and reverted back to an earlier, more stable incarnation in the process. TV : Destiny of the Daleks. According another account, she triggered a regeneration to try and purge the influence of Pandora from her mind.

According to one account, regenerated in preparation for the War in Heaven , adopting a body and attitude more suited for combat as the War Queen Romana III. In another account, Romana II started to regenerate into a different third incarnation due to contact with the decaying Eye of Harmony inside the Matrix , interacting with a projection thereof inside the Matrix.

In an aborted timeline, Romana II regenerated to give a power boost to the Moros engine shields in order to stop a black hole being formed. After using a psychic attack on Ofrin , an elderly form of the Romana III who had led Gallifrey in the War in Heaven died of exposure to the elements on an unnamed planet near the heat death of the universe and regenerated into a new, dark-skinned incarnation.

According to one account, Rassilon regenerated for the first time following accelerated aging due to the temporal radiation of the Eye of Harmony 's elemental forces and the stress of the situation he was in. Resurrected Rassilon. Attacked by the Master , who "stuffed his face full of White-Point Stars ," causing Rassilon to regenerate. Attacked by the Eight Legs on Earth. TV : Planet of the Spiders. The male Constable Pavo was shot by the Monk , who used a perception-altering ring to pose as Pavo, while Pavo regenerated into a female incarnation with the aid of the Second Doctor and Jamie McCrimmon.

Accidentally shot by Koschei while he was fighting with Imperial forces in the Darkheart ; although badly injured and apparently dead due to assuming that she was only human, she was able to survive in her damaged body until she returned to Koschei's TARDIS and regenerated in the Zero Room. Initiated all twelve of his regenerations at once to force the Celestial Toymaker out of his body; his previously-manifested Watcher subsequently merged with the Toymaker to keep him in check in the future, the Fifth Doctor noting that this would mean that the Toymaker himself had essentially regenerated as a person.

Caught in a traffic accident while on Earth; he retained enough control over the process after it began to deliberately shape his new appearance so that he was the exact duplicate of the Third Doctor. Attempting to free Omega from his anti-matter universe, Tauras regenerated after he was shot by Narvin. Attacked by pig-rats and K9's stun laser and forced to regenerate. In his thirteenth and final body, Azmael deliberately regenerated past his limit, killing himself, but also Mestor , who had been attempting to possess Azmael's body after his own was destroyed.

TV : The Twin Dilemma. Regenerated into the "Jane Fonda" Iris after a lengthy illness caused by eating a Dalek mutant raw. Unnamed Renegade. Killed when he attempted to propose an alliance between himself and three incarnations of the Master after the failure of his prior alliance with the Ravenous ; denouncing the Eleven as a twisted lunatic, the three Masters shot him and expelled him from their TARDIS with only a vortex manipulator, whereupon he regenerated into the Twelve.

After voting for the side opposing those who had sponsored his rise to power, Verne was caught up in a fight and was so badly injured that he was forced to regenerate into an incarnation that had a plain face and a laughably high voice. Willed himself to regenerate again immediately after his previous regeneration, finding his new body less than satisfactory — resulting in a body that was a deformed, elderly man.

Willed himself to regenerate again immediately after his previous regeneration, finding his new body less than satisfactory — resulting in a body that was an amorphous blob. Willed himself to regenerate again immediately after his previous regeneration, finding his body less than satisfactory — resulting in a monstrous inhuman form which the Lord President had destroyed.

High Tutor Albrecht. Regenerated as a result of an experiment by Theta Sigma involving a perigosto stick and a temporal feedback loop. Intrepid's first body failed at an unusually young age because, as a human - Homeworder hybrid , "her body was fighting itself". Unnamed House Military member. Regenerated against her will into a monstrous form after receiving mortal wounds to her stomach at the Battle of Cratosi Fields. Regenerated after the Daleks attacked the Neverwhen.

Shot by Gaal after finding out he was a traitor at Outpost Delta. Regenerated after being shot in the abdomen by Doctor Bendo. Forced herself to regenerate after the Imperator 's trial by putting a gun in her mouth and committing suicide.

Regenerated again, growing younger and taller, sometime before recruiting Larissa to the Order of the Weal. After tricking the Time Lords into saving Clara Oswald with an extraction chamber , the Twelfth Doctor tried to flee with Clara and armed himself with the General's sidearm.

Unnumbered incarnation. Pushed off a building in New York City by the Eleven. Drained every drop of her own blood from her body to restore Vampire Lord Yarven. Dying from an unknown cause, Ophiuchus was saved by the Fifth Doctor , who gave him a "little push" having been convinced by Nyssa and Tegan and regenerated. After staying in the same body for over six hundred years, Innocet was killed by a Quences -possessed Badger to protect the Doctor and regenerated into a new, younger incarnation.

Force-regenerated himself into the double of the First Doctor after acquiring a genetic sample to influence the appearance of his next incarnation. Though I know two ways the whole 13 Doctors thing can be broken. Both are possible. One is River's regenerations, the other is that the rule is a law that was passed in Gallifrey, not a biological thing. Isabelle Frater. The regeneration limit was a rule enforced by the high counsel, not a biological limit. Stacee Knouse. Sandi Dubrow Eltawar.

River gave him all but three of her regenerations. He has a few more to go. Kaylee Nichole Lopez. But John Hurt's actions were not done "in the name of the doctor" With his only appearance coming in the ill-fated movie, fans were left guessing as to how Paul McGann's Eighth Doctor regenerated.

Answers finally arrived in time for Doctor Who 's fiftieth anniversary in the short film, "The Night of the Doctor. Travelling alone, the Doctor comes across Cass, the pilot of a doomed ship, and attempts to save her life. Unusually for Doctor Who , Cass refuses, not wanting to be saved by one of the Time Lords currently destroying galaxies with their endless war against the Daleks. For his part, the Doctor refuses to leave and with both passengers remaining stubborn until the end, the ship crashes, killing both.

Fortunately, the Doctor seems to have landed on Karn, a former colony of Gallifrey introduced in the Fourth Doctor's era. The planet's natives, known as the Sisterhood, give the Eighth Doctor an elixir that will supposedly allow him to fully control the characteristics of his next regeneration.

Appearing in the 50th anniversary special, John Hurt's War Doctor was a fleeting but welcome addition to Doctor Who canon and was seen regenerating at the end of "The Day of the Doctor. However, it could also be argued that the War Doctor's function was merely as a soldier in the Time War, and once that conflict was over, so was the War Doctor himself. For the second time, the Doctor sacrifices himself to save an assistant.

Rose refuses to accept being unable to help the Doctor and strives to find a way back to him, eventually absorbing the heart of the TARDIS and gaining God-like abilities. Rose saves the day but is rapidly becoming unstable, forcing the Doctor to absorb the power himself via a painfully cheesy kiss. After restoring the TARDIS energy back to its original location, the Doctor begins to feel the effects of saving Rose, later claiming that no Time Lord is supposed to take in that much power.

He promptly regenerates into David Tennant. David Tennant 's demise was a long time coming in Doctor Who , with the "he will knock four times" warning coming well in advance of the Tenth Doctor's final episode. Viewers were misled into believing this prophecy would be fulfilled by the Master or Rassilon but, in the end, it was Bernard Cribbins' Wilf that heralded the end of the Tenth Doctor's reign. During the dramatic final confrontation of "The End of Time," Wilf selflessly frees an innocent worker from a two-man radioactive chamber, locking himself in until another person can take his place.

When the dust settles, the Doctor hears the gentle knocking and realizes he must sacrifice his own life to save Wilf, absorbing a deadly dose of radiation in the old man's stead.

After a whirlwind tour of his old friends, the Tenth Doctor delivers an emotionally devastating final line and regenerates in explosive fashion.