The Doctor (Seven Keys to Doomsday)

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Fourth Doctor (Seven Keys to Doomsday)

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Fourth Doctor
Species:	Time Lord
Place of origin:	Gallifrey
Appearances:	NOTDWU: Doctor Who and the Daleks in Seven Keys to Doomsday NOTDWU: Seven Keys to Doomsday
Main actor:	Trevor Martin

With his new companions, Jenny and Jimmy, the Fourth Doctor travelled to the planet Karn to prevent the Daleks from gaining the Crystal of All Power. (AUDIO: Seven Keys to Doomsday)