Calificación
Reparto

Edward Judd
Dr. Mike Vernon

Yoko Tani
Leader of the Lystrians

Valerie Gearon
Dr. Claire Harland

Lyndon Brook
Brian Carter

Ric Young
The Lystrian

Tsai Chin
Nurse Lim

Barrie Ingham
Major Muncaster

Anthony Sharp
Lawrence Blackburn

Glyn Houston
Police Sergeant Draycott

Ann Castle
Sister Evans

Jean Lodge
Barbara Gough

Ann Martin
Sister Kelly

Tony Wall
Ted

Peter Thomas
Harry

Mark Kingston
Morgan

Emrys Leyshon
Sergeant Williams