The Return of Boston Blackie

J.P. Lockney as Rob Nichols Violet Palmer as Annette Strongheart as Strongheart the Dog Corliss Palmer as Sylvia Markham Rosemary Cooper as Necklace Nellie Coit Albertson as Denver Dan Florence Wix as Mrs. John Markham Bob Custer as Boston Blackie William Worthington as John Markham

Leah Baird Adaptation, Screenplay