The Sinister Man

John Bentley

Superintendent Wills

Patrick Allen

Dr. Nelson Pollard

Jacqueline Ellis

Elsa Marlowe

Wilfrid Brambell

Lock-Keeper

John Glyn-Jones

Dr. Maurice Tarn

Jane Murdoch

Honeymoon Wife

Brian McDermott

Det. Sgt. Stillman

Gerald Andersen

Major Paul Amery

Edward Atienza

Clerk

Ric Young

Johnny Choto

Robert Lee

Mr. Nam Lee

Yvonne Buckingham

Miss Russell