Michael Gordon Director Warren William Michael Lanyard, The Lone Wolf Actor Marguerite Chapman Eve Andrews Actor Eric Blore Jamison Actor Mona Barrie Jane Merrick Actor Tala Birell Sonia Budenny Actor Margaret Hayes Patricia Blake Actor Ann Savage Vivian Actor Thurston Hall Inspector Crane Actor Warren Ashe Sidney Shaw Actor Fred Kelsey Dickens Actor Frank Sully Hertzog Actor Eddie Marr Mac Actor Donald Davis Screenwriter David Chatkin Producer L. W. O'Connell Cinematographer Viola Lawrence Film Editing Lionel Banks Art Director Robert Peterson Art Director George Montgomery Set Decoration