Ηθοποιοί επεισοδίου
Jon PertweeThe Doctor
Katy ManningJo Grant
Roger DelgadoThe Master
Nicholas CourtneyThe Brigadier
Richard FranklinCaptain Mike Yates
John LeveneSgt. Benton
Damaris HaymanMiss Hawthorne
Don McKillopBert the Landlord
★
Alec LinsteadSgt. Osgood
John OwensThorpe
Stephen ThorneAzal
★
John Scott MartinCharlie (uncredited)