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