Joel McCrea

Barry Corvall

Brenda Marshall

Brenda Ballard

James Stephenson

Dr. Anton Rader

Howard Hickman

Walter Forbes

Martin Kosleck

Karl 'Muller' Mullen

Nana Bryant

Mrs. Corvall

Rudolph Anders

Paul Strawn (as Robert O. Davis)

Hans Heinrich von Twardowski

Dr. Helm

George Davis

Swiss Gendarme (uncredited)

George Bancroft

Dudley Garrett

Stanley Ridges

Hamilton Peyton

Lucien Prival

Decker

Addison Richards

Bruce Corvall

Edwin Stanley

Secretary of State

Granville Bates

Phineas T. O'Grady

Grace Hayle

Mrs. O'Grady

Emmett Vogan

Instructor

Enrique Acosta

Geneva Restaurant Patron

Sidney Bracey

Ship Steward

James Conaty

Ball Guest

Sarah Edwards

Militant American Tourist

Christian J. Frank

Minor Role

John Hamilton

Code Room Instructor

Winifred Harris

Lady Ashford

John Harron

American Tourist

Stuart Holmes

American Tourist

William Hopper

Student

George Irving

State Department Official

Selmer Jackson

Instructor

Glenn Langan

Student

Vera Lewis

American Tourist Going to Desert

Chris-Pin Martin

Tunisian Guard

Billy McClain

Manservant at Ball

Harold Miller

Ball Guest

Jack Mower

Man Opening Door

George Reeves

Warrington's Secretary

Cyril Ring

Spectator at Dart Throwing

Lionel Royce

Hoffmeyer

Bert Stevens

Student

Don Turner

Pilot with Map

Dorothy Vaughan

Stout Woman Bumped by Garrett

Henry Victor

Foreign Official

Nella Walker

Mrs. Peyton

Lottie Williams

American Tourist Wanting Boat Out

William Worthington

Instructor in Montage