On screen
Cast
18 credited performers
Jon Pertwee
The Doctor
Elisabeth Sladen
Sarah Jane Smith
Artwork unavailable
Nina Thomas
Queen Thalira
Frank Gatliff
Chancellor Ortron
Artwork unavailable
Rex Robinson
Gebek
Artwork unavailable
Ralph Watson
Ettis
Artwork unavailable
Graeme Eton
Preba
Artwork unavailable
Michael Crane
Blor
Terry Walsh
Guard Captain
Max Faulkner
Miner
Artwork unavailable
Roy Evans
Miner
Nick Hobbs
Aggedor
Donald Gee
Eckersley
Artwork unavailable
Stuart Fell
Body of Alpha Centauri
Ysanne Churchman
Voice of Alpha Centauri
Artwork unavailable
Alan Bennion
Azaxyr
Sonny Caldinez
Sskel
Gerald Taylor
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