Reparto y equipo
-
Jack PalanceRonald Wyatt - Burgess MeredithDr. Diabolo
- Beverly AdamsCarla Hayes
- Peter CushingLancelot Canning
- Barbara EwingDorothy Endicott
- Michael BryantColin Williams
- Maurice DenhamReparto
- John StandingLeo Winston
- Robert HuttonBruce Benton
- John PhillipsEddie Storm
- Michael RipperGordon Roberts
- Bernard KayDr. Heim
- Catherine FinnNurse Parker
- Ursula HowellsMiss Maxine
- Niall MacGinnisDr. Silversmith
- Timothy BatesonReparto
- David BauerMike Charles
- Nicole ShelbyMillie
- Clytie JessopAtropos
- Michael HawkinsConstable
- Hedger WallaceReparto
- Frank ForsythReparto
- Roy StevensConstable
- Geoffrey WallaceReparto
- James CopelandFred
- Norman ClaridgePolice Sergeant
- Roy GoldfreyCollector
- Barry LowTramp
- Freddie FrancisDirección
- Max RosenbergProducción
- Milton SubotskyProducción