Characters played by Warren William
Michael Lanyard
Characters played by Ruth Ford
Helene de Leon
Characters played by Roger Clark
Paul Benoit
Characters played by Victor Jory
Dapper Dan Streever
Characters played by Eric Blore
Jamison
Characters played by Thurston Hall
Inspector Crane
Characters played by Fred Kelsey
Sgt. Dickens
Characters played by Victor Kilian
Colonel Costals
Characters played by Marlo Dwyer
Bubbles Deegan
Characters played by Lester Sharpe
Deputy Duval (as Lester Scharff)
Characters played by Irving Mitchell
Mr. Evans
Characters played by John Harmon
Bernard
Characters played by Joe McGuinn
Bob Garth