Season 10 (Doctor Who 1963)
The tenth season of Doctor Who ran between 30 December 1972 and 23 June 1973. It starred Jon Pertwee as the Third Doctor. The tenth anniversary story The Three Doctors aired during this season.
Overview
The season consisted of five serials and twenty-six episodes. 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. Jo Grant left this season, becoming the first companion to appear for three complete seasons. Roger Delgado made his final appearance in the role of the Master in Frontier in Space. Owing to the actor's accidental death, the Master never had a proper send-off and would not return as a semi-regular character until 1981.