Barry Corvall
Brenda Ballard
Lowell Warrington
Mrs. Corvall
Karl 'Muller' Mullen
Paul Strawn (as Robert O. Davis)
Dr. Anton Rader
Dudley Garrett
Hamilton Peyton
Walter Forbes
Dr. Helm
Swiss Gendarme (uncredited)
Decker
Bruce Corvall
Secretary of State
Phineas T. O'Grady
Mrs. O'Grady
Larsch
Instructor
Geneva Restaurant Patron
Minor Role
Youth
Geneva Restaurant Patron
American Tourist
Chauffeur
Ship Steward
Ball Guest
Man in O'Grady Crowd
American Tourist
Ball Guest
American Tourist
Waiter
Militant American Tourist
Minor Role
Foreign Officer
German Officer on Train
Ball Guest
Code Room Instructor
Lady Ashford
American Tourist
American Tourist
Student
State Department Official
Instructor
Straubel
Student
American Tourist Going to Desert
Foreign Agent
Announcer (voice)
American Tourist
Geneva Bartender
Tunisian Guard
Manservant at Ball
Militant American Tourist
Ball Guest
Man Opening Door
Radio Announcer Introducing Garrett
Warrington's Secretary
Man in O'Grady Crowd
Spectator at Dart Throwing
Hoffmeyer
Ball Guest
American Tourist
Man at Canteen
Train Conductor
Foreign Official
German Officer on Train
Student
Pilot with Map
Stout Woman Bumped by Garrett
Foreign Official
Friend of Müller
Foreign Official
Mrs. Peyton
American Tourist Wanting Boat Out
Instructor in Montage
Heinrich
Guard
Screenplay
