History Characters / DoctorWhoThirteenthDoctor

->'''Debut:''' [[Recap/DoctorWhoS37E1TheWomanWhoFellToEarth "The Woman Who Fell to Earth"]] (2018)
->'''Regeneration story:''' [[Recap/DoctorWho2022CENThePowerOfTheDoctor "The Power of the Doctor"]] (2022)

** It continues in [[Recap/DoctorWhoS37E5TheTsurangaConundrum "The Tsuranga Conundrum"]]: A sonic mine knocks out her and her companions for ''four'' days when they all wake up on a hospital ship far away from her TARDIS (again), with her having apparently taken the brunt of the damage.
** In [[Recap/DoctorWhoS37E8TheWitchfinders "The Witchfinders"]], she finds herself first not taken seriously because of her gender and then accused of witchcraft and dunked into a river. She bitterly notes that this wouldn't have happened in her previous incarnations when she was a man.
** In [[Recap/DoctorWhoS37E10TheBattleOfRanskoorAvKolos "The Battle of Ranskoor Av Kolos"]], she discovers to her horror that her attempts at dealing with Tzim-Sha via CruelMercy resulted in a PacifismBackfire instead.

** In [[Recap/DoctorWhoS38E6Praxeus "Praxeus"]], the Doctor is taken in by a female scientist who ends up being an AntiHero. She claims that she "can't resist a scientist".

** In [[Recap/DoctorWhoS37E6DemonsOfThePunjab "Demons of the Punjab"]], there's mention of a NoodleIncident involving a "Death Eye Turtle Army", for which the Doctor says she has already apologized profusely.

* TheAtoner: This is the Doctor's primary motivation in the Series 12 finale. In [[Recap/DoctorWhoS38E8TheHauntingOfVillaDiodati "The Haunting of Villa Diodati"]], the Doctor is forced to give Ashad, the Lone Cyberman, the key to conquest he's looking for, to stop him from destroying the Earth in 1816. In [[Recap/DoctorWhoS38E9AscensionOfTheCybermen "Ascension of the Cybermen"]] / [[Recap/DoctorWhoS38E10TheTimelessChildren "The Timeless Children"]], the Doctor and her friends quickly follow him back to his own time in the distant future, to thwart his plans of wiping out humanity. But despite her best efforts to run damage control, things only continue to spiral further and further out of control over the next two episodes, putting herself and her friends in grave danger, before the Master decides to get involved with his own ambitions. Eventually, to the Doctor's [[MyGodWhatHaveIDone horror]], an army of invincible, regenerating Cybermen are created that will raze the universe, so she very nearly makes a permanent HeroicSacrifice to make up for the consequences of her mistake.

---> "I'm the Doctor. Sorting out fair play throughout the universe. Now get off this planet, while you still have a choice."

---> "I'm the Doctor, the one who stops the Daleks!"
* BadassInANiceSuit: Dons quite the snazzy tuxedo during [[Recap/DoctorWhoS38E1E2Spyfall "Spyfall"]]. It even comes with a bowtie!
* BadassLongcoat: Achieved with a long light-lilac coat with dark lining. (Lilac was chosen in honour of the women's suffrage movement, according to the costume designer in extra material shown in theatres after the episode.) When dressing up for Daniel Barton's party in [[Recap/DoctorWhoS38E1E2Spyfall "Spyfall"]], she wears a long black tuxedo coat.

* BeCarefulWhatYouWishFor: After the events of [[Recap/DoctorWhoS38E10TheTimelessChildren "The Timeless Children"]], the Doctor becomes completely obsessed with learning more about her forgotten lives and the time she spent working for the Division. Throughout Series 13, she makes increasingly reckless decisions in the pursuit of answers, like tracking Karvanista down across the universe, or nearly getting herself ripped apart in a time-storm to access some of her blocked memories. In [[Recap/DoctorWhoS39E4FluxChapterFourVillageOfTheAngels "Village of the Angels"]], the Doctor finally gets what she wanted, in the most gruesome way possible, when the Weeping Angels kidnap her and petrify her so they can drag her back to the Division against her will, which is followed up in [[Recap/DoctorWhoS39E6FluxChapterSixTheVanquishers "The Vanquishers"]] by Swarm and Azure repeatedly destroying and restoring her lost memories until they're finally removed from the picture and she can reclaim her MemoryJar. However, once she has the MemoryJar, and seeing both what she's done and what's happened to her in its pursuit, [[spoiler:she gives it to the TARDIS rather than reclaim the memories yet]].
* BeingGoodSucks: As part of being extremely unlucky, Thirteen often finds herself in crucial moments of history she simply ''can't'' interfere with -- even though there's great suffering around her, history demands that things like the segregation of the Deep South and the bloody massacres that came with the Partition of India must happen.
** This comes to a head in [[Recap/DoctorWhoS38E8TheHauntingOfVillaDiodati "The Haunting of Villa Diodati"]] when she is forced to choose between the life of Percy Bysshe Shelley and giving the Lone Cyberman what he wants, thus threatening the future of humanity.

** The Master is a living BerserkButton for her. Not entirely surprising given he destroyed Gallifrey and showed her the true nature of what she really is. Thirteen is notably colder towards her "best enemy" than her predecessors in the revival series have been and, in [[Recap/DoctorWhoS38E10TheTimelessChildren "The Timeless Children"]], she even screams at him and shoves him to the ground in a fit of rage and, while she can't bring herself to kill him personally, has little issue leaving him to die on Gallifrey when Ko Sharmus does a HeroicSacrifice in her stead. It's ambiguous whether this is due to disappointment that 12's attempts to reform Missy failed, but for now she seems to have given up on trying to reform or reason with the Master as 10 and 12 did.

* BewareTheSillyOnes: This Doctor is quite the cheerful goofball, but she is certainly not someone to be trifled with. She can switch from silly to cold rage on a dime. One instance of this is in [[Recap/DoctorWhoS37E3Rosa "Rosa"]], where she mainly acts like a goofy annoyance when confronting Krasko initially, but the instant he says that he'll kill her and her friends if he sees them again, she immediately drops her smile, glares, and says in a low, icy tone, "Don't threaten me."
* {{Bifauxnen}}: The majority of her first adventure had her running around in Twelve's outfit and looking ''very'' handsome doing so, to the point a lot of fans wished that she kept the outfit!

* ByronicHero: On the outside, she doesn't seem to fit this trope well at all, what with her outward cheer, her generally bubbly demeanour, and eagerness to make friends seeming very at odds with the broody, melancholic loner image of the Byronic hero. However, in Series 12, she reveals many traits of this character archetype: for all her outward friendliness, she keeps everyone, even her friends, at a distance; she is intensely secretive about her DarkAndTroubledPast; her moods become erratic, switching from her typical happiness to moodiness on a dime; she mulls over her past traumas and even retraumatizes herself by going back to the ruins of Gallifrey on a regular basis; and she shows more of the trademark arrogance of Byronic heroes, seeing herself as the only one who can and has to make the hard choices. In [[Recap/DoctorWhoS38E8TheHauntingOfVillaDiodati "The Haunting of Villa Diodati"]] (which, incidentally, involved Lord Byron), the Doctor gives a speech demonstrating the latter to her companions:

** In [[Recap/DoctorWhoS37E9ItTakesYouAway "It Takes You Away"]], she determines where the TARDIS has landed by chewing on the nearby soil.
** In [[Recap/DoctorWhoS38E1E2Spyfall "Spyfall"]], she confuses casino blackjack with a game of Snap.
** In [[Recap/DoctorWhoS38E6Praxeus "Praxeus"]], she thinks Ryan smells like dead bird not because he has a dead bird in his bag, but because he'd changed his shower gel.

** Self-preservation? She doesn't know it. She admits in [[Recap/DoctorWhoS38E10TheTimelessChildren "The Timeless Children"]] that she's exhausted, and is okay with making a HeroicSacrifice.

* DoesntLikeGuns: As with many of her previous incarnations, she seems to really loathe guns and is furious when Ryan tries to shoot a bunch of robot guards in [[Recap/DoctorWhoS37E2TheGhostMonument "The Ghost Monument"]], making their situation much worse.

* EndearinglyDorky: As with most Doctors. Her very first scene has her breaking into a huge smile upon seeing her new face and going "Oh, brilliant!" She's upbeat, [[GenkiGirl highly energetic]], and [[MotorMouth talks a mile a minute]]. She's also exceedingly friendly; for instance, she declares that Yaz is her friend about two minutes after meeting her, and in [[Recap/DoctorWhoS37E2TheGhostMonument "The Ghost Monument"]], she introduces Yaz, Graham, and Ryan as her "new best friends" despite having only met them a few days ago. She's also not very good at small talk due to her tendency to go off on tangents.

** [[Recap/DoctorWhoS37E2TheGhostMonument "The Ghost Monument"]] shows off the darker side that she still has and tries to suppress; forgetting about making Yaz feel better while she's angry, snarling at the remnants to get out of her head, and implying all her talk of hope is more a way to cope than something she truly believes in. Additionally, her outbursts in "The Tsuranga Conundrum" basically foreshadow her ruthless personality in Series 12.
* ExtremeOmnivore: She has eaten dirt (and even offered some for her companions to eat, who promptly refused) and human bone dust. Additionally, in [[Recap/DoctorWho2021NYSRevolutionOfTheDaleks "Revolution of the Daleks"]], she mentions to her Pting neighbor that [[NoodleIncident she had tried to eat the prison bars before.]]

* FatalFlaw: Her desire to overall be nice, particularly in front of her companions. She tries so hard to be nice, she feels uncomfortable whenever she is put in a situation where she's not happy. Whenever she has negative emotions, for example her grief after seeing Gallifrey decimated again, she tries to hide them from her companions, resulting in her not coping well with them at all. She feels her inherent kindness is a detriment to her, as she mentions in [[Recap/DoctorWhoS37E6DemonsOfThePunjab "Demons of the Punjab"]], and she often shuts down when faced with hard questions or serious conversations. She claims to be socially awkward, but it's obvious she doesn't handle depressing topics well, as she retreats into herself. Her desperate need to at least appear nice to her companions results in her being emotionally distant from them, as because she buries all her negative emotions and doesn't let them in on her inner turmoil, she isn't able to meaningfully connect with her friends.

** In [[Recap/DoctorWhoS37E9ItTakesYouAway "It Takes You Away"]], much like the [[Characters/DoctorWhoTenthDoctor Tenth Doctor]], she skips the fingertips, though unlike him she doesn't ''lick'' the evidence but ''eats'' it.
** In [[Recap/DoctorWhoS38E8TheHauntingOfVillaDiodati "The Haunting of Villa Diodati"]], she licks the dust of some human bones to determine what century it dates back to.
* {{Foreshadowing}}: The show had been building up to the Doctor becoming a woman for quite a while. One of [[Creator/MattSmith Eleven's]] opening comments has him exclaim "I'm a girl", followed by a reference in [[Recap/DoctorWhoS32E4TheDoctorsWife "The Doctor's Wife"]] to a Time Lord switching genders, an option to choose his next incarnation's gender offered by the Sisterhood of Karn to the Eighth Doctor in the minisode [[Recap/DoctorWho50thPrequelTheNightOfTheDoctor "The Night of the Doctor"]], then [[Recap/DoctorWhoS34E11DarkWater "Dark Water"]] presents the Master's new incarnation as [[Creator/MichelleGomez a woman]], then [[Recap/DoctorWhoS35E12HellBent "Hell Bent"]] includes a male Time Lord who regenerates into a woman, mentioning that her last incarnation was the ''only'' time she's been a man. Finally, in [[Recap/DoctorWhoS36E12TheDoctorFalls "The Doctor Falls"]], the Master wonders aloud if the future's going to be "all girl", to which the Twelfth Doctor replies "We can only hope." Creator/StevenMoffat himself claimed he inserted those inclusions to the lore to tease the audience of the possibility and to set the precedent in case it ever happened (which it did right when he left the show). Funnily enough, his very first ''Doctor Who'' writing credit was the Comic Relief special ''[[Recap/DoctorWhoTheCurseOfFatalDeath The Curse of Fatal Death]]'', where a Ninth Doctor goes through four regenerations culminating in his thirteenth incarnation -- a blonde woman!
* FriendlyEnemy:

* FunctionalAddict: [[ImpliedTrope Implied.]] The episode [[Recap/DoctorWhoS38E9AscensionOfTheCybermen "Ascension of the Cybermen"]] shows that she has taken to keeping [[GRatedDrug ginger-spiked humbugs]] on her person, which is significant because ginger affects Time Lords like alcohol.

* GeniusSweetTooth: She seems to have a fondness for custard creams, and even has a custard cream dispenser in her TARDIS. She also mentions in [[Recap/DoctorWhoS37E6DemonsOfThePunjab "Demons of the Punjab"]] that she likes biscuits, so it doesn't seem to be limited to custard creams.

** In [[Recap/DoctorWhoS37E10TheBattleOfRanskoorAvKolos "The Battle of Ranskoor Av Kolos"]], a grieving Graham tells her he'll kill Tzim-Sha if he can; rather than try to console his grief she coldly tells him if he does so it'll mean immediate expulsion from the TARDIS.

** She goads the Master into revealing his plan in [[Recap/DoctorWhoS38E1E2Spyfall "Spyfall"]] and how he plans on betraying the Kasaavin, records this confession, and plays the recording to the Kasaavin later in the episode, causing the Kasaavin to trap the Master in their dimension as retribution.

* HatesBeingAlone: A reoccurring trait across all Doctors, but especially notable in this incarnation as despite it she refuses to invite her new companions along, knowing that it hasn't ended well in the past. She's visibly upset when she tries to say goodbye to her new friends in [[Recap/DoctorWhoS37E1TheWomanWhoFellToEarth "The Woman Who Fell to Earth"]], and when dropping them back home in [[Recap/DoctorWhoS37E4ArachnidsInTheUK "Arachnids in the UK"]] she looks like she's about to cry several times. She immediately takes up Yaz's offer of tea with her family as an excuse to spend more time with her new friends, and is visibly delighted when the new Team TARDIS convince her to let them stay. In [[Recap/DoctorWhoS38E7CanYouHearMe "Can You Hear Me?"]], after dropping off her companions home until lunch the next day, she considers jumping forward in time to their planned meeting time. Additionally, when she ends up investigating a situation in Aleppo in the 1300s, she spends most of the time talking to herself as if the companions are with her.

** She doesn't seem to mind being touched by/touching Yaz though. Casual touches become a part of their interactions from Series 11. In [[Recap/DoctorWhoS39E6FluxChapterSixTheVanquishers "The Vanquishers"]], the Doctor stops talking to hug Yaz even though it has only been a few hours since she last saw her. (It had been four years for Yaz on the other hand.)

* HeroicSacrifice: She very nearly makes a permanent one in the Series 12 finale. The Master is all set to unleash an army of regenerating Cybermen onto the universe that can never be killed, and the Doctor decides to eliminate the problem in a way that will kill her, the Master and the Cybermen. She's determined to see this suicide mission through to the end, because she feels responsible for the events leading up to this dilemma. But in the end, she can't bring herself to pull the trigger (just as she couldn't in [[Recap/DoctorWhoS27E13ThePartingOfTheWays "The Parting of the Ways"]] and [[Recap/DoctorWho50thASTheDayOfTheDoctor "The Day of the Doctor"]]), so Ko Sharmus steps in and makes the decision himself.

** Like Seven, she is noted for her manipulative HoistByHisOwnPetard tendencies, for example, blackmailing the antagonist in her first episode into leaving Earth by sabotaging his weaponry to blow him up (similar to Seven's actions in [[Recap/DoctorWhoS25E1RemembranceOfTheDaleks "Remembrance of the Daleks"]], though Seven follows through) if he does not leave. Additionally, like Seven, she's the light-hearted and affable successor to a serious and at times abrasive incarnation, whose kindhearted demeanour gradually begins to fade away in favour of more ruthless and secretive actions, although she is not on Seven's level of being TheChessmaster (but still has shades of this). Finally, Seven and Thirteen are the shortest Doctors, at around 5'6".

* IAmWho: Played straight and subverted. She discovers in [[Recap/DoctorWhoS38E10TheTimelessChildren "The Timeless Children"]] that she is ''not'' what she thought she was, that she is in fact a SingleSpecimenSpecies possibly from another universe/dimension who was used as the basis for the Time Lords' ability to regenerate, and that she had numerous incarnations between then and the First Doctor that were [[LaserGuidedAmnesia wiped from her memory]], but she knows nothing about her original self beyond that - their name, their species, why they were found beneath a wormhole to another universe, etc.

* KubrickStare: She displays one of these when confronting the baddies in [[Recap/DoctorWhoS37E6DemonsOfThePunjab "Demons of the Punjab"]].

* LastOfHerKind: As of [[Recap/DoctorWhoS38E1E2Spyfall "Spyfall"]] along with the Master, who she discovers to have wiped out the other Time Lords for reasons he refuses to fully explain but which have an apparent connection to a long-hidden AwfulTruth the Master discovered. Subverted as of [[Recap/DoctorWhoS38E10TheTimelessChildren "The Timeless Children"]], when she discovers she's ''not'' actually a Gallifreyan Time Lord, but instead is a SingleSpecimenSpecies who served as the basis for the Time Lords' ability to regenerate.
* LastSecondChance: In several episodes she makes a point of offering these to the villains, even (or especially) when she knows they'll refuse, before finally laying the smackdown. She outright states this to the Skithra Queen in [[Recap/DoctorWhoS38E4NikolaTeslasNightOfTerror "Nikola Tesla's Night of Terror"]].

--> '''Dan''': Who's she talkin' to?
--> '''Yaz''': The TARDIS.
--> '''Dan''': What? It's alive?
--> '''Yaz''': No idea, but they do chat...

* MotorMouth: She has a tendency to talk very quickly, especially when she's excited (which is often). This is {{deconstructed|Trope}} in [[Recap/DoctorWhoS38E3Orphan55 "Orphan 55"]]: her constant talking results in her running out of oxygen faster than everyone else.

** In [[Recap/DoctorWhoS38E8TheHauntingOfVillaDiodati "The Haunting of Villa Diodati"]], the Doctor encounters a Cyberman from the future named Ashad who's searching for the ultimate weapon to rule the cosmos. She's forced to make an impossible choice between letting him destroy the Earth in 1816 (which would do unimaginable damage to the history of the universe), or giving him what he wants (which would put the entire world in danger in the distant future), and she reluctantly chooses the latter. In [[Recap/DoctorWhoS38E9AscensionOfTheCybermen "Ascension of the Cybermen"]] / [[Recap/DoctorWhoS38E10TheTimelessChildren "The Timeless Children"]], she immediately follows him back to his own time, to save the world from him, but Ashad is always one step ahead of her, and he's eventually surpassed by an even greater evil, the Master, who decides to join the fray and hijack Ashad's scheme. When the Doctor realizes the Master is going to unleash an army of regenerating Cybermen onto the world who can never be killed, she looks absolutely horrified, partly because she knows the consequences of her decision led to this sort of monstrosity being possible.

* MyGreatestFailure: [[Recap/DoctorWhoS38E8TheHauntingOfVillaDiodati "The Haunting of Villa Diodati"]] confirms how much regret she feels over letting Bill Potts be converted into a Cyberman, refusing to lose anyone else to that fate. Later interviews with the cast and crew reiterate this fact and confirms she was talking about Bill.

* TheNameIsBondJamesBond: Introduces herself thusly while wearing a tuxedo in preparation for a BlackTieInfiltration in [[Recap/DoctorWhoS38E1E2Spyfall "Spyfall"]]:
-->"The name's Doctor. ''The'' Doctor."

* NoEqualOpportunityTimeTravel: Has to deal with this firsthand when she lands in 17th-century England in [[Recap/DoctorWhoS37E8TheWitchfinders "The Witchfinders"]], as due to being a woman in this incarnation, she's not taken seriously in that time period, and calling herself "Doctor" only arouses suspicion. She even bitterly notes that this wouldn't be a problem if she was male like her previous incarnations.

** Despite her sweet personality she still has shades of the Doctor's usual character flaws, as shown in [[Recap/DoctorWhoS37E5TheTsurangaConundrum "The Tsuranga Conundrum"]]: vanity, correcting someone who tells her that she takes up a chapter in a history book (after initially denying that it was her at all) that she takes up a whole ''volume''; and selfishness, nearly hijacking a hospital ship full of sick patients to get back to her TARDIS until the ship's personnel points out her extreme selfishness in wanting to do so (though that can be ascribed more to her panic at losing the TARDIS ''again'' making her momentarily forget herself), ignoring the patients like she was ignoring her own pain at the time. She also still really hates not being in charge, and defaults to assuming that she knows what's best even if someone else is better equipped to be in charge of the situation at hand. Notably, these traits (particularly the selfishness) only come out when she's bleary with pain and in the midst of a freakout about losing her TARDIS, and disappear when she's called out on it and forces herself to refocus.
** Just like her previous incarnations, she can become abrasively self-righteous to the point of glaring hypocrisy when it comes to her moral code of not killing and not using weapons. She scolds King James I for killing the Morax Queen, even though there was no other option for stopping her. She also reprimands Karl in [[Recap/DoctorWhoS37E1TheWomanWhoFellToEarth "The Woman Who Fell to Earth"]] for pushing Tzim-Sha even though he was trying to kill him and the poor young man was scared out of his mind, yet she saw nothing wrong with inflicting him with his own DNA bombs. She also threatens to expel Graham from the TARDIS when he tells her he wants to kill Tzim-Sha as vengeance for him taking Grace; never mind her attempt of dealing with him non-lethally backfired spectacularly and made him even more dangerous than he previously was.
** She scolds Ryan for using an alien gun against ''robot soldiers'' in [[Recap/DoctorWhoS37E2TheGhostMonument "The Ghost Monument"]]. Yet in [[Recap/DoctorWhoS37E10TheBattleOfRanskoorAvKolos "The Battle of Ranskoor Av Kolos"]], she tells him she has no problems using weapons against things that can be rebuilt. Ryan ''does'' call her out on this -- which she justifies by saying she had to lay down some ground rules because he was new ... and to never mention that again because her rules change all the time.
** In [[Recap/DoctorWhoS38E8TheHauntingOfVillaDiodati "The Haunting of Villa Diodati"]], she shows the classic arrogance characteristic of most of her previous incarnations after being questioned about her decision to try to save Percy Shelley from dying due to the Cyberium in his brain, regardless of the possibility that the Lone Cyberman might be able to get said Cyberium. She gives a furious speech saying that the math of one life versus billions isn't as simple as the fam seem to think, demands that they try to see if they can make this decision and live with the potential of the future being irrevocably altered, and when they hesitate, she tells them in a simultaneously disgusted, disappointed, and arrogant tone that in the end, their so-called "flat-team structure" is not always the case, as she is left as the only one who can and must make these difficult decisions.

** In [[Recap/DoctorWho2019NYSResolution "Resolution"]], when she realises that the awakened creature is a Dalek, the normally upbeat and chatty Thirteenth Doctor shows how terrified she is by going silent, enough so that Yaz notices and is distinctly disquieted by the implications. Not long after, as she tells her companions about the Daleks, the Doctor's voice briefly drops into a bitter, almost hateful tone as she laments that no matter how many times they seem to be destroyed, the Doctor is never truly rid of the Daleks. This incarnation may not dwell on the horrors of the Time War as her predecessors did, but she still can't shake their lingering anger towards their oldest foe.

** Thanks to [[Recap/DoctorWhoS38E1E2Spyfall "Spyfall"]], she withdraws in [[Recap/DoctorWhoS38E3Orphan55 "Orphan 55"]] and everyone is clearly concerned about her Nine-levels of emotional constipation, as well as being eager to get away from her as soon as they hit the resort. She also acts much more frustrated and is considerably snarkier than usual.
--->'''Thirteen:''' I'll have a look round then... by myself.
* OopNorth: Whittaker gets to use her thick Yorkshire accent, actually quite a rarity for her. But why not -- [[Characters/DoctorWhoNinthDoctor lots of planets have a North]]. Combined with her BlitheSpirit personality, the accent only serves to make Thirteen come across all the bouncier and more hyperactive. Her accent is lampshaded by Dr. Polidori in [[Recap/DoctorWhoS38E8TheHauntingOfVillaDiodati "The Haunting of Villa Diodati"]]:

'''Dr. Polidori:''' ''[Matter-of-factly]'' The North.
* PintSizedPowerhouse: At 5'6", Whittaker ties with Creator/SylvesterMcCoy as the shortest actor to play the role (she's actually a centimetre shorter, making her ''the'' shortest Doctor as of her casting). She laments her new short legs several times in her first episode (and given previous post-Time War incarnations were between 5'11½" and 6'1", it's not surprising she has some trouble adjusting). Despite this, [[Recap/DoctorWhoS37E2TheGhostMonument "The Ghost Monument"]] reveals she still knows and uses Three's Venusian Aikido.

* RetroactivePreparation: How she saves her companions from a crashing airplane in [[Recap/DoctorWhoS38E1E2Spyfall "Spyfall"]], by going back in time after the adventure and setting up the things they'll need to get the plane to straighten out and land safely.
* {{Revenge}}: Throughout [[Recap/DoctorWhoS38E1E2Spyfall "Spyfall"]], the Master tries to kill the Doctor and her friends many, many times (with help from the Kasaavin and the Nazis), and he hunts her down as a fugitive throughout history without her TARDIS. Eventually, she manages to turn the tables on him, and pays him back in full by tossing him to the wolves with his new 'friends'. First she strands him in World War II without his TARDIS, which forces him to have to escape the Nazis and take TheSlowPath through the next eight decades until the present day. And then she reveals his intentions to betray the Kasaavin to the Kasaavin themselves, which turns the entire race against him: they swiftly whisk him off to their own dimension, to do who knows what to him.

** She takes letting down her companions very hard, as shown in [[Recap/DoctorWhoS37E2TheGhostMonument "The Ghost Monument"]] when she is unable to find her TARDIS after having promised her friends that she'd be able to get them home.
** [[Recap/DoctorWhoS37E4ArachnidsInTheUK "Arachnids in the UK"]] shows that she feels desperately lonely, as she's on the verge of tears and only barely keeping up a cheerful tone and smile when she drops Yaz, Graham, and Ryan off at home (though she's barely able to look at them for most of the exchange), knowing that she's going to be alone with her TARDIS once more.
** Seemingly driven home by [[Recap/DoctorWhoS38E1E2Spyfall "Spyfall"]], where it's revealed that she actually hasn't revealed much about her past to Team TARDIS, almost as if she's afraid of letting people get close to her. And when she does open up after prodding from the fam, she only begrudgingly gives them very limited information and still can't bring herself to tell them about the fact that Gallifrey's been destroyed again, this time by the Master.

* ScrewYourself: While she doesn't go ''that'' far, after accidentally splitting herself into three during [[Recap/DoctorWhoS39E6FluxChapterSixTheVanquishers "The Vanquishers"]], two versions of Thirteen end up in the same room. They repeatedly compliment each others' looks, and one of them even tells her companions that she has a crush on the other Doctor.

* {{Slapstick}}: Like her previous male incarnations, she's had her share of comedic pratfalls, including some scenes where she accidentally electrocutes herself in [[Recap/DoctorWhoS37E1TheWomanWhoFellToEarth "The Woman Who Fell To Earth"]], walks right into an invisible wall and bangs her head in [[Recap/DoctorWhoS38E8TheHauntingOfVillaDiodati "The Haunting of Villa Diodati"]], and escapes certain death in a very chaotic and undignified manner at the start of [[Recap/DoctorWhoS39E1FluxChapterOneTheHalloweenApocalypse "The Halloween Apocalypse"]].
* SlasherSmile: Is she genuinely kind? Sure! Does she have a smile that shows too many teeth when she's winning against an enemy? [[https://sapphichymns.tumblr.com/post/190039593142 Also yes]]. This is particularly notable in [[Recap/DoctorWhoS38E1E2Spyfall "Spyfall"]], as when she is telling the Master that she's implicated him to the Nazis as a British double agent, she's [[https://ennn.tumblr.com/post/190120641903/its-moments-like-these-that-make-me-think grinning in a way that makes her look positively unhinged]].

** She acts cheerful and peppy on the surface, but, in [[Recap/DoctorWhoS37E2TheGhostMonument "The Ghost Monument"]], for instance, the cloth weapons on Desolation pick up on the fear within her more than anyone else, not just fears from the many lives she's lived but fear of her "own newness". Additionally, later on in that episode, when the TARDIS isn't where she was told it was going to be, her positive attitude up until that point just disappears. She's clearly crushed that her beloved ship and oldest friend isn't there and believes she's broken her promise to her new friends to get them home safe and alive, almost in tears when the TARDIS finally does arrive.
** In [[Recap/DoctorWhoS38E1E2Spyfall "Spyfall, Part 2"]], she finds out that the founders of Gallifrey have been hiding something huge from everyone and that Gallifrey has been destroyed, again, by the Master. When seeing the Master's message while alone in the TARDIS, she is visibly furious and distraught, angrily tossing away the recording and staring off in a melancholy fashion. But she still tries to put on a cheery face for her companions, even pasting on a false smile after Yaz asks her if they can visit her home planet. Said smile immediately falls off when she turns and walks away from her companions.

*** In [[Recap/DoctorWhoS38E3Orphan55 "Orphan 55"]], she doesn't even attempt to hide her grumpy mood, snapping at everyone in her vicinity.
*** By [[Recap/DoctorWhoS38E4NikolaTeslasNightOfTerror "Nikola Tesla's Night of Terror"]], she has largely recovered her ability to fake her positivity, but when the Skithra Queen threatens planetary genocide and taunts her by asking if she's ever seen a dead planet, therefore pressing a huge BerserkButton considering the Doctor had just lost Gallifrey a second time, her happy mask slips off and she coldly declares that the only thing that will be left of the Skithra is a trail of blood and other people's brilliance after they die, and then blasts the ship of Skithra with a gigantic bolt of lightning.
*** In [[Recap/DoctorWhoS38E5FugitiveOfTheJudoon "Fugitive of the Judoon"]], Graham notes that she has been flipping between smiles and being "somewhere else" mentally on a frequent basis. When the Fam express concern about the fact that she's been going to Gallifrey alone, she angrily tells them it's because they ask too many questions. At the end of the episode, when Ryan tries to reassure her by saying that they'll be there for her, no matter what she fears might be coming for her, she snaps at him, coldly saying that he barely knows her since she's lived for thousands of years and the Fam have only been travelling with her for an infinitesimal portion of that time.
*** In [[Recap/DoctorWhoS38E8TheHauntingOfVillaDiodati "The Haunting of Villa Diodati"]], she is furious when the Fam questions her hesitation to sacrifice Percy Shelley to keep the Cyberium out of the Lone Cyberman's hands, telling them about the ramifications of making that decision, saying that this means their present as they know it would be fundamentally changed and thus, if she does make that decision, she would be sacrificing ''them'', and then she puts them on the spot, asking them if they would be comfortable making that choice. When they hesitate, she is simultaneously unsurprised, disappointed, and angry, and she makes a speech about how she is always the only one who can make these choices, putting herself on an isolated metaphorical summit towering over the rest of them. And then, barely ten minutes later, she's back to joking to Graham that the ghosts he saw might have been real, and then telling everyone to keep having hope.
*** In [[Recap/DoctorWhoS38E9AscensionOfTheCybermen "Ascension of the Cybermen"]], when Yaz, Graham, and Ryan each state a different obvious observation about how her plan failed, she shouts at them in anger that she knows, causing them to silence quickly in alarm.
** In [[Recap/DoctorWho2021NYSRevolutionOfTheDaleks "Revolution of the Daleks"]], both Ryan and Yaz call her out for her tendency to fit this trope, telling her that it's okay to show her more negative emotions.

'''The Doctor:''' ''(smiling, somewhat strained)'' It doesn't even matter now.\\

** Thirteen's tendency to ask herself questions pertaining to the alien threat is lampshaded in [[Recap/DoctorWhoS39E2FluxChapterTwoWarOfTheSontarans "War of the Sontarans]]".
---> '''General''': Are you asking for a response for your musings?

** In [[Recap/DoctorWhoS37E7Kerblam "Kerblam!"]], she ''begs'' Charlie to reconsider his plan before it goes too far and gives him until the last possible second to take the opportunity before she has to teleport away and leave him to his fate, only activating the teleport on Graham's prompting. She's visibly upset afterwards.
** She makes a notable exception to this in [[Recap/DoctorWho2019NYSResolution "Resolution"]], but seeing as how the opponent was a [[GodzillaThreshold Dalek]], it's understandable, and the Doctor actually checks with her current companions to ensure that she gave her foe a sufficient opportunity to surrender before trying to kill it.
** She also makes an exception to this in [[Recap/DoctorWhoS38E4NikolaTeslasNightOfTerror "Nikola Tesla's Night of Terror"]], as she has no issues with striking the Skithra Queen with a massive blast of lightning. It probably didn't help that the Skithra Queen threatened planetary genocide and hit a BerserkButton by asking the Doctor if she had ever seen a dead planet before, considering the Doctor earlier in the series saw her own planet destroyed.

** In [[Recap/DoctorWhoS37E6DemonsOfThePunjab "Demons of the Punjab"]], she has this stare when walking away and letting Prem be killed knowing that he has to die to preserve the timeline.
** [[Recap/DoctorWhoS38E1E2Spyfall "Spyfall"]]:

** [[Recap/DoctorWhoS38E5FugitiveOfTheJudoon "Fugitive of the Judoon"]]:

** She does this again in [[Recap/DoctorWho2021NYSRevolutionOfTheDaleks "Revolution of the Daleks,"]] when trying to work through her continued identity crisis after finding out she's the Timeless Child by announcing that she's the Doctor, and she's the one who stops the Daleks.

** Poor Yaz lightly mentions the Doctor's grumpiness in [[Recap/DoctorWhoS38E3Orphan55 "Orphan 55"]] and gets an icy "my mood's fine".

* WaistcoatOfStyle: Sports a polka-dotted waistcoat as a concession to Regency-era dress in [[Recap/DoctorWhoS38E8TheHauntingOfVillaDiodati "The Haunting of Villa Diodati"]].

** While in Yaz's police car in [[Recap/DoctorWhoS37E1TheWomanWhoFellToEarth "The Woman Who Fell to Earth"]]:

** [[Recap/DoctorWhoS37E7Kerblam "Kerblam!"]]:

** Helped the other incarnations of The Doctor save Gallifrey in [[Recap/DoctorWho50thASTheDayOfTheDoctor "The Day of the Doctor"]].

* EarlyBirdCameo: She has surprise cameos in ''The Missy Chronicles'' and [[Literature/DoctorWhoNovelisations the novelization]] of [[Recap/DoctorWho50thASTheDayOfTheDoctor "The Day of the Doctor"]], and is included in Clive's files about the Doctor in the novelization of [[Recap/DoctorWhoS27E1Rose "Rose"]], all of which were released during the hiatus between [[Recap/DoctorWho2017CSTwiceUponATime "Twice Upon a Time"]] and [[Recap/DoctorWhoS37E1TheWomanWhoFellToEarth "The Woman Who Fell to Earth"]].

* ArchEnemy: The Master[[note]](specifically the incarnation portrayed by Creator/SachaDhawan)[[/note]] and the Ravager siblings Swarm and Azure. The former sets off the Timeless Child MythArc of Thirteen's era and serves as a personal nemesis as always, while the latter were enemies of the Fugitive Doctor who frequently torment the Thirteenth during the Flux crisis.

* ArchEnemy: The Master[[note]]specifically the incarnation portrayed by Creator/SachaDhawan[[/note]] and the Ravager siblings Swarm and Azure. The former sets off the Timeless Child MythArc of Thirteen's era and serves as a personal nemesis as always, while the latter were enemies of the Fugitive Doctor who frequently torment the Doctor during the Flux crisis.

* WomenAreWiser: Of all the revival series Doctors, she is the first to park the Tardis before regenerating and do it out side.

[[Characters/DoctorWhoClassicSeriesCompanions Classic Series Companions]] ([[Characters/DoctorWhoK9 K9]], [[Characters/DoctorWhoRomana Romana]]) | [[Characters/DoctorWhoRevivalSeriesCompanions Revival Series Companions]] ([[Characters/DoctorWhoRoseTyler Rose Tyler]], [[Characters/DoctorWhoJackHarkness Captain Jack Harkness]], [[Characters/DoctorWhoRiverSong River Song]], [[Characters/DoctorWhoClaraOswald Clara Oswald]]) | [[Characters/DoctorWhoOtherSupportingCast Other Supporting Cast]] ([[Characters/DoctorWhoThePaternosterGang The Paternoster Gang]]) | [[Characters/DoctorWhoUNITStaff UNIT Staff]]\\

[[Characters/DoctorWhoFirstDoctor 1]] | [[Characters/DoctorWhoSecondDoctor 2]] | [[Characters/DoctorWhoThirdDoctor 3]] | [[Characters/DoctorWhoFourthDoctor 4]] | [[Characters/DoctorWhoFifthDoctor 5]] | [[Characters/DoctorWhoSixthDoctor 6]] | [[Characters/DoctorWhoSeventhDoctor 7]] | [[Characters/DoctorWhoEighthDoctor 8]] | [[Characters/DoctorWhoWarDoctor War]] | [[Characters/DoctorWhoNinthDoctor 9]] | [[Characters/DoctorWhoTenthDoctor 10]] | [[Characters/DoctorWhoEleventhDoctor 11]] | [[Characters/DoctorWhoTwelfthDoctor 12]] | '''13''' | [[Characters/DoctorWhoFourteenthDoctor 14]] | [[Characters/DoctorWhoFifteenthDoctor 15]]\\