Behind the Mask A Slinking Fiend ... Sulking Terror ... Mad Murder! A Secret Service agent nabs a scalpel-happy doctor who runs drugs in caskets. Details Casts Galleries Posters Title Behind the Mask Release Date 1932-02-25 Runtime 01 Hours 08 Minutes Genres Crime Horror Thriller Production Companies Columbia Pictures Production Countries United States of America Jack Holt... Jack Hart aka Quinn... Constance Cummings... Julie Arnold... Boris Karloff... Jim Henderson... Claude King... Arnold... Bertha Mann... Nurse Edwards... Edward Van Sloan... Dr. August Steiner / Dr. ... Willard Robertson... Capt. E.J. Hawkes... Thomas E. Jackson... Agent Burke... Martha Mattox... Hotel Ansonia Maid... Jessie Arnold... Eastland Hospital Nurse... Harry Tenbrook... Man in Black / Henchman i... Original Size (1920x1080) Original Size (1000x1500) Original Size (960x1440)