Brenda Marshall
Brenda Ballard
Jeffrey Lynn
Lowell Warrington
Martin Kosleck
Karl 'Muller' Mullen
Rudolph Anders
Paul Strawn (as Robert O. Davis)
James Stephenson
Dr. Anton Rader
George Bancroft
Dudley Garrett
Stanley Ridges
Hamilton Peyton
Howard Hickman
Walter Forbes
Hans Heinrich von Twardowski
Dr. Helm
George Davis
Swiss Gendarme (uncredited)
Addison Richards
Bruce Corvall
Edwin Stanley
Secretary of State
Granville Bates
Phineas T. O'Grady
Enrique Acosta
Geneva Restaurant Patron