Cast
James Stephenson
Dr. Paul Venner
Donald Crisp
Dr. Drewett
Sig Ruman
Professor Herman Von Reiter
Bruce Lester
Dr. Bentley
Hermine Sterler
Miss Hoffman
Bette Davis
Leonard Mudie
Mr. Tom Foster
Frank Reicher
Dr. Esterhazy
Billy Bevan
Chivers
Alec Craig
Jeweler
Mary Taylor
Mrs. Kent a Patient (uncredited)
Barbara O'Neil
Miss Leeming
Doris Lloyd
Mrs. Foster
Crauford Kent
Dr. Corliss
Geraldine Fitzgerald
Dr. Mary Murray
Montagu Love
Dr. Blake
G.P. Huntley
Dr. Thornton
Richard Ainley
Dr. Hale