On screen
Cast
16 credited performers
Colin Baker
Character not listed
Tom Baker
Character not listed
Peter Davison
Character not listed
Louise Jameson
Character not listed
George Takei
Character not listed
Matthew Waterhouse
Character not listed
Artwork unavailable
Eric Luskin
Presenter
Sarah Sutton
Character not listed
Ian Marter
Character not listed
Terrance Dicks
Character not listed
Jon Pertwee
Character not listed
Isaac Asimov
Character not listed
Mary Tamm
Character not listed
John Nathan-Turner
Character not listed
Artwork unavailable
Sarah Lee
Character not listed
Artwork unavailable
Roger Brunskill
Character not listed