"A Secret Service agent nabs a scalpel-happy doctor who runs drugs in caskets."
Jack Holt
as Jack Hart aka Quinn
Constance Cummings
as Julie Arnold
Boris Karloff
as Jim Henderson
Claude King
as Arnold
Bertha Mann
as Nurse Edwards
Edward Van Sloan
as Dr. August Steiner / Dr. Alec Munsell / Mr. X
Willard Robertson
as Capt. E.J. Hawkes
Thomas E. Jackson
as Agent Burke
Martha Mattox
as Hotel Ansonia Maid
Jessie Arnold
as Eastland Hospital Nurse
Harry Tenbrook
as Man in Black / Henchman in Boat
John Francis Dillon
Director
Jo Swerling
Story
Writer
Harry Cohn
Producer
Ted Tetzlaff
Director of Photography
Otis Garrett
Editor
Edward Sloman
Assistant Director
