Cast and credits of The Secret Man

Starring

Marshall Thompson
Dr. Cliff Mitchell

John Loder
Maj. Anderson

Henry Oscar
John Manning

John Stuart
Dr. Warren

Anne Aubrey
Jill Warren (as Ann Aubrey)

Murray Kash
Waldo

Michael Mellinger
Tony Norwood

Tom Bowman
Charles

Bernard Archard
Inspector

Stan Simmons
Tomkins

Robert Dorning
Captain Scott

Victor Harrington
Undercover Intelligence Agent (uncredited)

Robert Rietty
John Manning (voice) (uncredited)

Written by

Brian Clemens
screenplay (as Tony O'Grady)