
When Barry Corvall discovers that his new bride is a possible enemy agent, he resigns from the diplomatic service to go undercover to route out an espionage ring planning to destroy American industrial capability.
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