Serum obtained from a brain after a mass murder transforms the good Dr. Jekyll of London into the evil Mr. Blood.
Denis DeMarne
as Dr. William Jekyll / Danny Blood
Julia Stratton
as April
Gay Feld
as Mary Ann
Jaqueline Lawrence
as Carla Jekyll
Gerald Jacuzzo
as John Murphy
Berwick Kaler
as Jack Smithers
Jennifer Sommerfeld
as Victoria Crenshaw
Laurence Davies
as Inspector Wolfe
Raymond Cross
as Constable
Janis Servals
as Annette
Bryan Southcombe
as Oliver Marsden
William Barrel
as Mr. Marsden
