Calificación
Reparto

Patrick Troughton
Gerald

Pat Heywood
Joan

John Normington
Dr. Lawrence

Doreen Mantle
Matron

Robert Glenister
Peter

Vicky Ogden
Cheryl

John Bott
Ronnie

Gilly Coman
Robin

Zoot Money
Dave

Tim Whitnall
Phil

Ivor Danvers
Police Sergeant