Ηθοποιοί επεισοδίου
Jon PertweeThe Doctor
Katy ManningJo Grant
Roger DelgadoThe Master
Nicholas CourtneyThe Brigadier
Richard FranklinCaptain Mike Yates
John LeveneSgt. Benton
Michael WisherRex Farrel
★
Dermot TuohyBrownrose
★
Barbara LeakeMrs. Farrel
★
Norman StanleyTelephone Mechanic
Terry WalshAuton Policeman
★
Pat GormanAuton Leader
★
Hayden JonesAuton Voice