A mysterious hypnotist reverts his beautiful assistant back into the form of a prehistoric sea monster that she was in a past life.
as Dr. Carlo Lombardi
as Andrea Talbott / Elizabeth Wetherby
as Timothy Chappel
as Dorothy Chappel
as Dr. Ted Erickson
as Police Lt. Ed James
as Mrs. Chappel
as Plainclothes Sgt. with Lt James
as Olaf, the butler
as Johnny, the barker
as Bob, the ex-fiancé
as Marta, the Maid
as Mrs. Brown
as Police Doctor with Prof. Anderson
as Lombardi's Lawyer
as Professor Anderson
as Party Guest
as The She-Creature
as King the Dog
