Sam Newfield Director Hugh Beaumont Michael Shayne Actor Kathryn Adams Phyllis Hamilton Actor Richard Fraser Dillingham 'Dilly' Smith Actor Charles C. Wilson Chief Will Gentry Actor Cy Kendall Pete Rafferty Actor Marjorie Hoshelle Helen Porter Actor Paul Bryar Tim Rourke Actor Mauritz Hugo Hank Brenner Actor Fred Myton Screenwriter Sigmund Neufeld Producer Jack Greenhalgh Cinematographer Holbrook N. Todd Film Editing Edward C. Jewell Art Director Harry Reif Set Decoration