as Det. Tom Grant

as Inspector Keightley

as Lionel Smeed

as Det. Sgt. Carter

as Dr. Norman Jones

as Ben Keller

as Lord Archibald Swanson

as Police Intelligence Officer on Radio (uncredited)

as Bowen

as Henry

as Managing Director, Benthams

as Rosebloom

as Gidney

as Sergeant White

as Attendant

as Dominion Captain