Dr. Julian Blair
Boris Karloff
Dr. Richard Sayles
Richard Fiske
Dr. Van Den
Lester Allen
Dr. Sanders
Wheaton Chambers
Professor Walt
Eddie Kane
Mr. Booth
Harrison Greene
Professor Kent
Erwin Kalser
Postmaster
John Tyrrell
Anne Blair
Amanda Duff
Mrs. Walters
Anne Revere
Mrs. Marcy
Dorothy Adams
Seth Marcy
Walter Baldwin
Sheriff Ed Willis
Kenneth MacDonald
Helen Blair
Shirley Warde
Karl
Cy Schindell
Elam
Ernie Adams
Original Music Composer
Morris Stoloff
Music Director
Producer
Wallace MacDonald
Director
Edward Dmytryk
Screenplay
Robert Hardy Andrews
Milton Gunzburg
Editor
Al Clark
Novel
William Sloane
Director of Photography
Allen G. Siegler
Art Direction
Lionel Banks
Sound Engineer
Philip Faulkner Jr.