David Harding, Counterspy

Ray Nazarro

Clint Johnston

Screenplay

Tom Reed

Screenplay

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