John Harvey

as Hammond Stubbs

as Dr. Wallace

as Cpl. McCunn

as Man in Bookshop

as 2nd Club Member

as Sergeant (Bridge Hotel)

as Station Warrant Officer

as Sgt. Vickers

as Bill Trethowan

as Sergeant Barnes

as Scotland Yard Man

as Thompson

as Det. Insp. Roberts

as Professor Brett

as Officia

as Lieutenant

as Sir George Woodley

as Lt. Howard