George Zucco
Lorenzo Cameron
Acting
Anne Nagel
Lenora Cameron
Acting
Johnny Downs
Tom Gregory
Acting
Glenn Strange
Petro
Acting
Robert Strange
Professor Blaine
Acting
Gordon De Main
Professor Fitzgerald
Acting
John Elliott
Professor Hatfield
Acting
Reginald Barlow
Professor Warwick
Acting
Sarah Padden
Grandmother
Acting
Mae Busch
Susan
Acting
Ed Cassidy
Father
Acting
Henry Hall
Country Doctor
Acting
Eddie Holden
Jed Harper
Acting