David Harding, Counterspy

Willard Parker

Commander Jerry Baldwin

Audrey Long

Betty Iverson

Raymond Greenleaf

Dr. George Vickers

Howard St. John

David Harding

Alex Gerry

Charles Kingston

Harlan Warde

Hopkins

Anthony Jochim

Robert Barrington

John Dehner

Frank Reynolds

Fred F. Sears

Peters

Carter DeHaven Jr.

Assistant Director

Mischa Bakaleinikoff

Music Director

Frank Tuttle

Set Decoration

Henry Batista

Editor

Milton Feldman

Producer

Tom Reed

Screenplay

George E. Diskant

Director of Photography

Clint Johnston

Screenplay

Phillips Lord

Radio Play

Ray Nazarro

Director

Russell Malmgren

Sound

Harold H. MacArthur

Art Direction