Casts
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
