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)

Jennifer Welles

as Myra

Suzy Mann

as Linda (as Sarah Lee Travers)

Eric Edwards

as Dr. Bill Jenkins

Barbara Benner

as Tally (as Debbie Bristol)

David Hausman

as Linda's Pickup

Darby Lloyd Rains

as Jennifer

Harding Harrison

as Dr. Tom Hopper

Kevin Andre

as Seymour

Cindy West

as Enid

Bobby Niles

as Dick