Secret Venture
Voltar
Kent TaylorTed O'Hara
Jane HyltonJoan Butler
Kathleen ByronRenee L'Epine
Karl StepanekZelinsky
Frederick ValkOtto Weber
Maurice KaufmannDan Flemying
Martin BoddeySquire Marlowe, the Wrestler- Arthur LaneBob Hendon
- Hugo SchusterProfessor Henrik
- John BoxerInspector Dalton
Michael RipperBill Rymer
Michael BalfourStevens- Alexander FieldTrain Porter
- Vivienne MartinLola
- John WarrenBargee
Fred GriffithsGymnasium Attendant- Terence BrookMan on Sofa
- Patrick DowlingFirst Reporter
- Arthur BentletSecond Reporter