Preston Foster
— Robert Crane
Whitney Bourne
— Carolyn Martin
Donald Meek
— Gordon Ainsley, aka Henry Robinson
Samuel S. Hinds
— Police Commissioner David Theron
Paul Guilfoyle
— Taylor
Cecil Kellaway
— Fentriss, aka Gilhooley
June Johnson
— 'Babs' Theron
Arthur Lake
— Roy West
Edythe Elliott
— Mrs. Edith Theron
Alec Craig
— Bald Theron Servant
Harry Hayden
— Dr. Hilliard
Cyril Thornton
— Thornton - Theron's majordomo (uncredited)
Vivien Oakland
— Mrs. Jerome Courtland (uncredited)
Kitty McHugh
— Nurse Agnes Smith (uncredited)
William Corson
— Jewelry Deliverer (uncredited)
Richard Bond
— Harris - the Courtland Butler (uncredited)
Walter Miller
— Police Sergeant O'Riley (uncredited)
William Donnelly
— Phoney Delivery Driver with Taylor (uncredited)
Hal Craig
— Standing Policeman (uncredited)
Frank O'Connor
— Seated Policeman (uncredited)
Frank Williams
— Charles, Ainsley's chauffeur (uncredited)