Barry Corvall

Brenda Ballard

Lowell Warrington

Dr. Anton Rader

Walter Forbes

Karl 'Muller' Mullen

Mrs. Corvall

Paul Strawn (as Robert O. Davis)

Dr. Helm

Swiss Gendarme (uncredited)

Dudley Garrett

Hamilton Peyton

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

Director

Art Direction

Director of Photography

Screenplay

Editor

Screenplay

Makeup Artist

Sound

Conductor

Wardrobe Coordinator

Original Story

Executive In Charge Of Production

Assistant Director

Other

Wardrobe Supervisor

Executive Producer

Additional Dialogue

Music Director

Associate Producer

Unit Manager

Original Music Composer