Reparto y equipo
-
Kim StanleyMyra Savage - Richard AttenboroughBilly Savage
- Patrick MageeSuperintendent Walsh
- Mark EdenCharles Clayton
- Nanette NewmanMrs. Clayton
- Judith DonnerAmanda Clayton
- Gerald SimDetective Sergeant Beedle
- Margaret LaceyWoman at First Seance
- Maria KazanWoman at First Seance
- Lionel GamlinMan at Seances
- Marian SpencerMrs. Wintry
- Ronald HinesPoliceman Outside Clayton's
- Hajni BiroMaid at Clayton's
- Diana LambertSheila
- Godfrey JamesMrs. Clayton's Chauffeur
- Arnold BellMr. Weaver (uncredited)
- Stanley MorganMan in Trilby
- Michael LeesPlain Clothes Policeman
- Maggie RennieWoman at Second Seance
- Frank SinguineauBus Conductor
- Bryan ForbesDirección
- Richard AttenboroughProducción
- Bryan ForbesProducción
- Bryan ForbesEscritor
- John BarryMúsica