The Return of Boston Blackie

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

Leah Baird Adaptation, Screenplay