William Hartnell
The Doctor
Jacqueline Hill
Barbara Wright
William Russell
Ian Chesterton
Maureen O'Brien
Vicki
Catherine Fleming
Animus (voice)
Roslyn de Winter
Vrestin
Arne Gordon
Hrostar
Arthur Blake
Hrhoonda
Jolyon Booth
Prapillus
Jocelyn Birdsall
Hlynia
Martin Jarvis
Hilio
Ian Thompson
Hetra
Barbara Joss
Nemini
Robert Jewell
Zarbi
