John Saxon

Dr. Jack Costain

Patricia Haines

Ann Barlow

Alfred Burke

Detective Supt. Hartley

Maurice Denham

Dr. Morley

John Carson

The Major

Ballard Berkeley

Cmdr. Savage

Stanley Meadows

Det. Tom Grant

Robert Crewdson

Medra

Aubrey Morris

Thorburn

Jack Watson

The Sergeant

Tony Wager

Pvt. Higgins

Marianne Stone

Madge Lilburn

Warren Mitchell

Reg Lilburn

Geoffrey Lumsden

Col. Davy

Tom Gill

Police Commissioner's secretary