Doctor Who - Season 10 : Episode 3
1972-12-30
- Drama
- Action & Adventure
- Sci-Fi & Fantasy
William Hartnell returned in a cameo as the First Doctor and Patrick Troughton in a more substantial role as the Second Doctor in The Three Doctors. This story marked the end of the Doctor's exile on Earth, opening up the series to more off-world adventures and beginning a gradual reduction of UNIT-related stories.