John Arnold

as Jack's Grandfather

as 'Old Chap' Arnold Jones

as P.J. Foster

as Jock

as Colin Pierce

as Dennis Hughes Q.C.

as Sure Thing Sam

as Dave

as Senior Railway Clerk

as Cullen

as Reynolds

as Jimmy Doyle

as Gordon Hendricks

as Det. Sgt. Steve Milich

as Detective

as Lt. Hunter

as Munch

as Man Selling Dog