Espionage Agent

Joel McCrea

Barry Corvall

Brenda Marshall

Brenda Ballard

Jeffrey Lynn

Lowell Warrington

Nana Bryant

Mrs. Corvall

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)

Lucien Prival

Decker

Addison Richards

Bruce Corvall

Edwin Stanley

Secretary of State

Granville Bates

Phineas T. O'Grady

Grace Hayle

Mrs. O'Grady

Egon Brecher

Larsch

Emmett Vogan

Instructor

Enrique Acosta

Geneva Restaurant Patron

Eddie Acuff

Minor Role

Louis Adlon

Youth

Jimmy Aye

Geneva Restaurant Patron

Fern Barry

American Tourist