===Personalità===
La personalità del personaggio ha mostrato di avere diverse sfaccettature: il Dottore è stato infatti descritto come un uomo imprevedibile, clownesco e infantile, ma al contempo saggio, serioso e oscuro.<ref name="telegraph" />
Throughout his regenerations, the Doctor's personality has retained a number of consistent traits.<ref name="telegraph" /> Its most notable aspect is an unpredictable, affable, clownish exterior concealing a well of great age, wisdom, seriousness and even darkness. While the Doctor can appear childlike and jocular, when the stakes rise, as, for example, in ''[[Pyramids of Mars]]'', he will often become cold, driven and callous. Another aspect of the Doctor's persona, which, though always present, has been emphasised or downplayed from incarnation to incarnation, is [[compassion]]. The Doctor is a fervent [[pacifist]] and is dedicated to the preservation of sentient life, human or otherwise, over violence and war,<ref name=conf>Doctor Who Confidential; 8 May 2008</ref> even going so far as to doubt the morality of destroying his worst enemies, the [[Dalek]]s, when he has the chance to do so in ''[[Genesis of the Daleks]]'', and again in ''[[Evolution of the Daleks]]''. He also, in ''[[The Time Monster]]'', begs Kronos to spare the Master torment or death, unintentionally winning the evil Time Lord's freedom, which he tells Jo Grant was preferable anyway, and forgives the Master for his actions in ''[[The Sound of Drums]]'' and ''[[Last of the Time Lords]]'', vowing to take responsibility for his former friend.
NonethelessSebbene ciascun interprete abbia rappresentato il personaggio a suo modo, thetutte Doctorle willversioni killdel whenDottore givencondividono nola othersua optionnatura andcompassionevole occasionallye inpacifista: self-defence;egli infatti dedica la sua vita alla preservazione della vita, sia umana che aliena, battendosi contro il male e la guerra.<ref name=conf>Doctor Who Confidential; 8 May 2008</ref> examplesCiononostante, ofha thisanche canucciso beper seenlegittima indifesa,<ref name=conf/>''[[The Tomb of the Cybermen]]'', ''[[The Dominators]]'', ''[[The Invasion (Doctor Who)|The Invasion]]'', ''[[The Krotons]]'', ''[[Spearhead from Space]]'', ''[[The Sea Devils]]'', ''[[The Three Doctors (Doctor Who)|The Three Doctors]]'', ''[[The Brain of Morbius]]'', ''[[The Talons of Weng-Chiang]]'', ''[[The Invasion of Time]]'', ''[[Earthshock]]'', ''[[Vengeance on Varos]]'', ''[[The Two Doctors]]'', ''[[Silver Nemesis]]'', ''[[World War Three (Doctor Who)|World War Three]]'', ''[[The Christmas Invasion]]'', ''[[Tooth and Claw (Doctor Who)|Tooth and Claw]]'', ''[[The Age of Steel]]'', ''[[The Runaway Bride (Doctor Who)|The Runaway Bride]]'', ''[[Smith and Jones (Doctor Who)|Smith and Jones]]'' andspingendosi mostfino notablyal ingenocidio ''[[Remembrancenei ofconfronti the Daleks]]'' when he arranges for the planet [[Skaro]] to be destroyed; it has also been stated that he was responsible for destroying both thedei Dalek, andi Timesuoi Lordpiù racesgrandi in order to end the [[Time Warnemici (Doctornel Who)|Time War]] numerous times in the series beginning in 2005. Another example of the Doctor purposely taking a life isserial ''[[The Sontaran Experiment]]'', where he tells his companion Harry Sullivan to remove a device from the Sontaran ship, which causes the deathRemembrance of the Sontaran, something the Doctor knew would happen but Harry did not. In the 2005 episode ''[[The End of the World (Doctor Who)|The End of the WorldDaleks]]'', the Doctor teleports Cassandra back onto the ship and does nothing to prevent herad deathesempio, evenordina ignoringla herdistruzione criesdel forloro helppianeta and pity. In situations where fixed points in history must be preserved, the Doctor is sometimes faced with hard choices resulting in the deaths of many; In ''[[The Visitation (Doctor Whonatale)|The Visitation]]'' he started the Great Fire of London, and in ''[[The Fires of Pompeii]]'' he caused the volcano above Pompeii to erupt, which killed everyone in the city (but saved the rest of the world). On other occasions he is seen to be critical of others who use deadly force, such as his companions [[Leela (Doctor Who)|Leela]] in ''[[The Face of Evil]]'' and ''[[Talons of Weng-Chiang]]'', or [[Jack Harkness]] in "[[Utopia (Doctor Who)|Utopia]]".
Non fa uso di armi (ad eccezione dell'innocuo [[cacciavite sonico]]) ed è critico contro chi usa la forza; ha invece fatto più volte uso di trucchi per ingannare i suoi avversari, confondendoli con le parole o con un comportamento bizzarro.
The Doctor has an extreme dislike for weapons such as firearms or [[rayguns]] and will often decline to use them even when they are convenient. He has proven capable of using them effectively when necessary, as seen in ''[[Resurrection of the Daleks]]'' and ''[[Revelation of the Daleks]]''. He will occasionally use a firearm as a convenient way to bluff his way through a situation, hoping that his foe will not suspect that he does not intend to shoot. He will also occasionally present non-threatening items as weapons so as to fool his enemies, and buy himself time (such as threatening to kill a tribesman with a "deadly jelly baby" in [[The Face of Evil]], brandishing a water pistol in ''[[The Fires of Pompeii]]'', or pretending a [[Jammie Dodgers|Jammie Dodger]] to be a Tardis self-destruct device in ''[[Victory of the Daleks]]'').
The Doctor has a deep sense of right and wrong, and a conviction that it is right to intervene when injustice occurs, which sets him apart from his own people, the [[Time Lord]]s, and their strict ethic of non-intervention.
Although throughout his regenerations the Doctor remains essentially the same person, each actor has purposely imbued his incarnation of the role with distinct quirks and characteristics and the production teams purposefully dictate new personality traits for each actor to portray.
;Primo Dottore
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