Rebecca Brooke

as Dr. Shirley Jekyll / Shirley Hyde (as Veronica Parrish)

Sonny Landham

as Huntington Van Huff

Lisa Beth

as Gwen Van Huff

Charles Schwartz

as Flamenstein

Ron Ryan

as Sean O'Brien

Raymond Serra

as Ralph White (as Tony Raymond)

Kathie Fitch

as Louise White (as Cris Jordan, Chris Jordan)