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Runtime
Director
Where to Watch
Boris Karloff
as Dr. Laurence
Anna Lee
as Dr. Clare Wyatt
John Loder
as Dick Haslewood
Frank Cellier
as Lord Haslewood
Donald Calthrop
as Clayton
Cecil Parker
as Dr. Gratton
Lyn Harding
as Prof. Holloway
Clive Morton
as Journalist
D.J. Williams
as Landlord
Alex Vetchinsky
Art Direction
Jack E. Cox
Director of Photography
Roy Ashton
Makeup Artist
Robert Stevenson
R. E. Dearing
Editor
Alfred Roome
Michael Balcon
Producer
Hubert Bath
Original Music Composer
L. du Garde Peach
Screenplay
John L. Balderston
Sidney Gilliat
