Doctor Who S3, E24

The adventures in time and space of the Doctor, a Time Lord who changes appearance and personality by regenerating when near death, and is joined by companions in battles against aliens and other megalomaniacs.

Cast:William Hartnell , Patrick Troughton , Jon Pertwee , Tom Baker , Frazer Hines , Nicholas Courtney , Pat Gorman , Elisabeth Sladen , Jacqueline Hill , William Russell , Katy Manning , John Scott Martin , John Levene , Peter Davison , Janet Fielding , John Leeson , Terry Walsh , Gerald Taylor