Casts
John Carradine
as Dr. Sigmund Walters
Evelyn Ankers
as Beth Colman
Milburn Stone
as Fred Mason
Lloyd Corrigan
as John Whipple
Fay Helm
as Nurse Strand
Martha Vickers
as Dorothy Colman
Acquanetta
as Paula Dupree, the Ape Woman
Vince Barnett
as Curly
Paul Fix
as Gruen
Fred Aldrich
as Roustabout (uncredited)
