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