Cast & Crew
-
Hugh O'BrianHugh Lombard - Shirley EatonAnn Clyde
- FabianMike Raven
- Leo GennGeneral Mandrake
- Stanley HollowayWilliam Blore
- Marianne HoppeFrau Grohmann
- Wilfred Hyde-WhiteJudge Cannon
- Daliah LaviIlona Bergen
- Dennis PriceDr. Armstrong
- Mario AdorfHerr Grohmann
- Christopher LeeMr. Owen
- George PollockDirector
- Harry Alan TowersProducer
- Agatha ChristieWriter
- Peter YeldhamWriter
- Harry Alan TowersWriter