Cast (9)
Boris Karloff
Dr. Laurence
Anna Lee
Dr. Clare Wyatt
John Loder
Dick Haslewood
Frank Cellier
Lord Haslewood
Donald Calthrop
Clayton
Cecil Parker
Dr. Gratton
Lyn Harding
Prof. Holloway
Clive Morton
Journalist
D.J. Williams
Landlord
Boris Karloff
Dr. Laurence
Anna Lee
Dr. Clare Wyatt
John Loder
Dick Haslewood
Frank Cellier
Lord Haslewood
Donald Calthrop
Clayton
Cecil Parker
Dr. Gratton
Lyn Harding
Prof. Holloway
Clive Morton
Journalist
D.J. Williams
Landlord
Crew (11)
Writing
L. du Garde Peach
Screenplay
John L. Balderston
Screenplay
Sidney Gilliat
Screenplay
Directing
Robert Stevenson
Director
Camera
Jack E. Cox
Director of Photography
Production
Michael Balcon
Producer
Art
Alex Vetchinsky
Art Direction
Editing
R. E. Dearing
Editor
Alfred Roome
Editor
Sound
Hubert Bath
Original Music Composer
Costume & Make-Up
Roy Ashton
Makeup Artist