Joel McCrea
Barry Corvall
Acting
Brenda Marshall
Brenda Ballard
Acting
Jeffrey Lynn
Lowell Warrington
Acting
Nana Bryant
Mrs. Corvall
Acting
Martin Kosleck
Karl 'Muller' Mullen
Acting
Rudolph Anders
Paul Strawn (as Robert O. Davis)
Acting
James Stephenson
Dr. Anton Rader
Acting
George Bancroft
Dudley Garrett
Acting
Stanley Ridges
Hamilton Peyton
Acting
Howard Hickman
Walter Forbes
Acting
Hans Heinrich von Twardowski
Dr. Helm
Acting
George Davis
Swiss Gendarme (uncredited)
Acting
Lucien Prival
Decker
Acting
Addison Richards
Bruce Corvall
Acting
Edwin Stanley
Secretary of State
Acting
Granville Bates
Phineas T. O'Grady
Acting
Grace Hayle
Mrs. O'Grady
Acting
Egon Brecher
Larsch
Acting
Emmett Vogan
Instructor
Acting
Enrique Acosta
Geneva Restaurant Patron
Acting
Eddie Acuff
Minor Role
Acting
Louis Adlon
Youth
Acting
Jimmy Aye
Geneva Restaurant Patron
Acting
Fern Barry
American Tourist
Acting
Sven Hugo Borg
Chauffeur
Acting
Sidney Bracey
Ship Steward
Acting
James Carlisle
Ball Guest
Acting
Glen Cavender
Man in O'Grady Crowd
Acting
Loia Cheaney
American Tourist
Acting
James Conaty
Ball Guest
Acting
Alice Connors
American Tourist
Acting
Jean De Briac
Waiter
Acting
Sarah Edwards
Militant American Tourist
Acting
Christian J. Frank
Minor Role
Acting
Arno Frey
Foreign Officer
Acting
Frederick Giermann
German Officer on Train
Acting
Eddie Graham
Ball Guest
Acting
John Hamilton
Code Room Instructor
Acting
Winifred Harris
Lady Ashford
Acting
John Harron
American Tourist
Acting
Stuart Holmes
American Tourist
Acting
William Hopper
Student
Acting
George Irving
State Department Official
Acting
Selmer Jackson
Instructor
Acting
Willy Kaufman
Straubel
Acting
Glenn Langan
Student
Acting
Vera Lewis
American Tourist Going to Desert
Acting
Rolf Lindau
Foreign Agent
Acting
Charles Frederick Lindsley
Announcer (voice)
Acting
Al Lloyd
American Tourist
Acting
Tony Martelli
Geneva Bartender
Acting
Chris-Pin Martin
Tunisian Guard
Acting
Billy McClain
Manservant at Ball
Acting
Robert Middlemass
Militant American Tourist
Acting
Harold Miller
Ball Guest
Acting
Jack Mower
Man Opening Door
Acting
Wendell Niles
Radio Announcer Introducing Garrett
Acting
George Reeves
Warrington's Secretary
Acting
John J. Richardson
Man in O'Grady Crowd
Acting
Cyril Ring
Spectator at Dart Throwing
Acting
Lionel Royce
Hoffmeyer
Acting
Milton Royce
Ball Guest
Acting
Sally Sage
American Tourist
Acting
Alexander Schoenberg
Man at Canteen
Acting
Ferdinand Schumann-Heink
Train Conductor
Acting
Hans Schumm
Foreign Official
Acting
Lester Sharpe
German Officer on Train
Acting
Bert Stevens
Student
Acting
Don Turner
Pilot with Map
Acting
Dorothy Vaughan
Stout Woman Bumped by Garrett
Acting
Henry Victor
Foreign Official
Acting
Frederick Vogeding
Friend of Müller
Acting
Wilhelm von Brincken
Foreign Official
Acting
Nella Walker
Mrs. Peyton
Acting
Lottie Williams
American Tourist Wanting Boat Out
Acting
William Worthington
Instructor in Montage
Acting
Wolfgang Zilzer
Heinrich
Acting
Henry Zynda
Guard
Acting