Kadro (28)
Jack WatlingMike Brewster
Carole LesleySusan
Renée HoustonMrs. Gray
John SlaterSid Johnson
Colin GordonMitchellLibby MorrisTrixie
Cardew RobinsonMicki
June CunninghamRosie
Ronald AdamJudge
Ernest ClarkColonel Drew
John SalewMr. MonktonVic WiseSpider
Hugh MortonGrantJulian OrchardWalkerTony ThawntonCostume DesignerRuth LeeReceptionist
Larry TaylorLarge Man
Johnny VyvyanBig LouisJeanne MoodyBarbara Drew
Marne MaitlandEastern GentlemanAlf DeanEnormous Man
Gertan KlauberJoe
Frank ForsythBarmanGeoffrey DentonCounselJohn Watson1st Inventor
Diana ChesneyDowager (uncredited)Walter HenryUndercover Detective (uncredited)
Lance PercivalStage Prompter (uncredited)