Robert Crane
Carolyn Martin
Gordon Ainsley, aka Henry Robinson
Police Commissioner David Theron
Taylor
Fentriss, aka Gilhooley
'Babs' Theron
Roy West
Mrs. Edith Theron
Bald Theron Servant
Dr. Hilliard
Thornton - Theron's majordomo (uncredited)
Mrs. Jerome Courtland (uncredited)
Nurse Agnes Smith (uncredited)
Jewelry Deliverer (uncredited)
Harris - the Courtland Butler (uncredited)
Police Sergeant O'Riley (uncredited)
Phoney Delivery Driver with Taylor (uncredited)
Standing Policeman (uncredited)
Seated Policeman (uncredited)
Charles, Ainsley's chauffeur (uncredited)