Joan Rice

Pat Lewis

Tim Turner

Frank Mason

Sandra Dorne

Blonde

Charles Victor

Sergeant

Cecil Brock

Criminal

John Le Mesurier

Inspector

Christopher Lee

Johnny, a constable

Nora Gordon

Mrs. Lewis

Rex III

Police Dog

James Gilbert

Ken Lade

Garard Green

Police Seargant at Break-in

Norman Mitchell

Vet

Gay Cameron

Phyllis Morris

John Warren

Clerk of Works

Ian Fleming

Gentleman Walking His Dog (uncredited)

Arthur Howell

Police Dispatcher (uncredited)

Colin McKenzie

Police Dispatcher (uncredited)

Jim Morris

Police Dispatcher (uncredited)

Fred Nicholas

Police Dispatcher (uncredited)