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Routine tests on a traffic accident victim lead to shocking discoveries when the man's blood is found to be unidentifiable and x-rays reveal a disc embedded in his brain. His fabulous tale of being an escaped prisoner from an alien spaceship takes a turn for the sinister when the hospital staff realise that they're under a state of siege...
Director
Writers
Producer
Music
Studio
Merton Park Studios
Cast
Full credits →E
Edward Judd
Dr. Mike Vernon
Y
Yoko Tani
Leader of the Lystrians
V
Valerie Gearon
Dr. Claire Harland
L
Lyndon Brook
Brian Carter
R
Ric Young
The Lystrian
T
Tsai Chin
Nurse Lim
B
Barrie Ingham
Major Muncaster
A
Anthony Sharp
Lawrence Blackburn
G
Glyn Houston
Police Sergeant Draycott
A
Ann Castle
Sister Evans
J
Jean Lodge
Barbara Gough
T
Tony Wall
Ted
P
Peter Thomas
Harry
M
Mark Kingston
Morgan
E
Emrys Leyshon
Sergeant Williams
L
Leonard Cracknell
Lloyd
S
Stephanie Bidmead
Elaine
N
Norman Mitchell
Lorry Driver
P
Peter Sinclair
Old Joe
D
Diane Aubrey
Telephone Operator
