Cast

Jack Holt

Jack Hart aka Quinn

Constance Cummings

Julie Arnold

Boris Karloff

Jim Henderson

Claude King

Arnold

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Bertha Mann

Nurse Edwards

Edward Van Sloan

Dr. August Steiner / Dr. Alec Munsell / Mr. X

Willard Robertson

Capt. E.J. Hawkes

Thomas E. Jackson

Agent Burke

Martha Mattox

Hotel Ansonia Maid

Jessie Arnold

Eastland Hospital Nurse

Crew

John Francis Dillon

Director (Directing)

Jo Swerling

Story (Writing)

Jo Swerling

Writer (Writing)

Harry Cohn

Producer (Production)

Ted Tetzlaff

Director of Photography (Camera)

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Otis Garrett

Editor (Editing)

Edward Sloman

Assistant Director (Directing)