Générique complet
Secret Venture
Kent Taylor
Ted O'Hara
Jane Hylton
Joan Butler
Kathleen Byron
Renee L'Epine
Karl Stepanek
Zelinsky
Frederick Valk
Otto Weber
Maurice Kaufmann
Dan Flemying
Martin Boddey
Squire Marlowe, the Wrestler
AL
Arthur Lane
Bob Hendon
HS
Hugo Schuster
Professor Henrik
JB
John Boxer
Inspector Dalton
Michael Ripper
Bill Rymer
Michael Balfour
Stevens
AF
Alexander Field
Train Porter
VM
Vivienne Martin
Lola
JW
John Warren
Bargee
Fred Griffiths
Gymnasium Attendant
TB
Terence Brook
Man on Sofa
PD
Patrick Dowling
First Reporter
AB
Arthur Bentlet
Second Reporter
