Doctor Who
The Mutants, Part Six
Season 9, Episode 20 · Aired 1972-05-13
Synopsis
The Doctor is forced to help the Marshal cover up his actions with the Investigator but Jo and the others attempt to escape to expose him.
In the series
This episode is part of Doctor Who (1963–) on BBC.
A time-traveling renegade in a police box — regeneration as infinite franchise life.
Key cast
- William Hartnell as The First Doctor
- Patrick Troughton as The Second Doctor
- Jon Pertwee as The Third Doctor