Forrest Tucker
as
Baron Keller
Eva Bartok
as
Baron Keller
Marius Goring
as
Baron Keller
Guy Middleton
as
Maj. Hobart
Eric Pohlmann
as
Emile
Arnold Marlé
as
Prof. Pal Kudn...
Fred Johnson
as
Chief Agent Fa...
David King-Wood
as
Col. Patchway
Reginald Beckw...
as
Dusty
Guido Lorraine
as
Franz
Andre Mikhelson
as
Russian thug a...
Stanley Zevic
as
Russian thug #...
Marne Maitland
as
The phony Kudn...
Arthur Lovegro...
as
Bert
Derek Prentice
as
Keller's butler