Horror / Science Fiction /

Score: 63%( 124 votes )

Overview: An American tourist, a youth gang leader, and his troubled sister find themselves trapped in a top secret government facility experimenting on children.

Cast:

Macdonald Carey
Simon Wells

Shirley Anne Field
Joan

Viveca Lindfors
Freya Neilson

Alexander Knox
Bernard

Oliver Reed
King

Walter Gotell
Major Holland

James Villiers
Captain Gregory

Tom Kempinski
Ted

Kenneth Cope
Sid

Brian Oulton
Mr. Dingle

Barbara Everest
Miss Lamont

Allan McClelland
Mr. Stuart

James Maxwell
Mr. Talbot

Rachel Clay
Victoria

Caroline Sheldon
Elizabeth

Rebecca Dignam
Anne

Siobhan Taylor
Mary

Nicholas Clay
Richard (as Nicolas Clay)

Kit Williams
Henry

Christopher Witty
William

David Palmer
George

John Thompson
Charles

Fiona Duncan
Control Room Guard (uncredited)

León García
Teddy Boy (uncredited)

Victor Gorf
(uncredited)