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One incarnation of the Doctor, following his regeneration, met new companions Jenny Wilson and Jimmy Forbes. In the TARDIS, they travelled to the planet Karn, where they prevented the Daleks from gaining the Crystal of All Power.

This incarnation of the Doctor resembled a middle-aged man, with a hoarse voice. (AUDIO: Seven Keys to Doomsday)

Behind the scenes Edit

Trevor Martin's Doctor originated in the stage play, Doctor Who and the Daleks in Seven Keys to Doomsday, in which he was implied to have followed Jon Pertwee's Third Doctor. The stage play version of this character, therefore, was the Fourth Doctor before Tom Baker was cast for television. In the audio adaptation, an unidentified incarnation played by Nicholas Briggs preceded him.

The "Seven Keys" Doctor was played by several other actors in later worldwide performances of the original play, including Michael Sagar in the 1984 production of the play in Porirua, New Zealand. Sagar portrayed the Doctor wearing a chequered suit and sporting a black moustache, giving him an overall look clearly distinct from Trevor Martin's take.[1]

FootnotesEdit

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