Onder andere met: Dorothy McGuire (Helen Capel), George Brent (Professor Warren), Ethel Barrymore (Mrs. Warren), Kent Smith (Dr. Parry), Rhonda Fleming (Blanche), Gordon Oliver (Steve Warren), Elsa Lanchester (Mrs. Oates), Sara Allgood (Nurse Barker), Rhys Williams (Mr. Oates), James Bell (Constable)