Jackie Cooper
— Frederick Martindale Vincent III
Joseph Calleia
— Joe Calerno
Rin-Tin-Tin Jr.
— Duke
Harvey Stephens
— Chief Davison
Jean Hersholt
— Dr. Mulback
Миша Ауэр
— Chi
Robert Warwick
— Frederick Martindale Vincent II
Edward Pawley
— Tony, Gangster
Sue Moore
— Mrs. 'Toots' Waring (uncredited)