Doctor Who: a part not taken

Per an uncredited contributor to IMDB, Michael Gothard was asked to play Biroc in "Doctor Who: Warriors Gate", which was first broadcast in four weekly parts from 3 January to 24 January 1981.

This would have cast him alongside Tom Baker, who appeared in "Arthur of the Britons: Go Warily."

However, Michael was not available, as he was working on "For Your Eyes Only."

David Weston was cast instead.