Chester Morris
饰 Horatio 'Boston Blackie' Black
June Vincent
饰 Doris Howell
Richard Lane
饰 Insp. William R. Farraday
Patricia Barry
饰 Joan Howell (as Patricia White)
George E. Stone
饰 The Runt
Frank Sully
饰 Sgt. Matthews
Edward Norris
饰 Igor Borio
Fay Baker
饰 Margie O'Reilly, alias Sandra Doray
William Forrest
饰 Mason Carter
Sarah Selby
饰 Claire Carter
Mary Currier
饰 Helen Kenyon
