Ηθοποιοί επεισοδίου
Jon PertweeThe Doctor
Katy ManningJo Grant
Roger DelgadoThe Master
Edwin RichfieldCaptain Hart
Clive MortonTrenchard
Royston TicknerRobbins
★
Neil SeilerRadio Operator
★
Declan MulhollandClark
★
Hugh FutcherHickman
★
June Murphy3rd Officer Jane Blythe
★
Alec WallisLdg. Telegraphist Bowman
★
Brian JusticeCastle Guard Wilson
Terry WalshCastle Guard Barclay
★
Pat GormanSea Devil