Cast
Lionel Atwill
Dr. Jerry Xavier
Fay Wray
Joanne Xavier
Lee Tracy
Lee Taylor
Preston Foster
Dr. Wells
John Wray
Dr. Haines
Harry Beresford
Dr. Duke
Arthur Edmund Carewe
Dr. Rowitz
Leila Bennett
Mamie
Robert Warwick
Commissioner Stevens
George Rosener
Otto, Dr. Xavier's Butler
