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Cast

J
John Paul
as Dr Spencer Quist
J
Joby Blanshard
as Colin Bradley
S
Simon Oates
as Dr. John Ridge
V
Vivien Sherrard
as Barbara Mason
J
John Barron
as The Minister
R
Robert Powell
as Tobias Wren
J
John Nolan
as Geoff Hardcastle
J
John Barron
as The Minister
J
John Lee
as Captain - Second Airline Crew
R
Robert James
as Barker
H
Hamilton Dyce
as Minister
M
Morris Perry
as Prof. Alec Hetherington
B
Bruce Purchase
as Norman Sylvester
E
Emrys Jones
as Colonel Archibald Smithson
L
Leslie Schofield
as Harry
C
Cec Linder
as Sen. Connell
K
Katherine Kath
as Lady Janette Holroyd
J
Jonathan Pryce
as Police Constable
D
Desmond Llewelyn
as Thompson
M
Michael Keating
as Stephen Grigg
J
June Brown
as Kit Pedler
K
Kevin Stoney
as Prof. Hal Symonds
J
Jennifer Daniel
as Dana Colley
W
William Lucas
as Benjamin Fielding
O
Olaf Pooley
as Dr. Ensor
J
Joseph Fürst
as Dr. Charles Goldsworthy
M
Maurice Roëves
as Peter Shipton
E
Erik Chitty
as Old Man
G
George Baker
as John Mitchell
P
Peter Copley
as Admiral Sir Richard Tranton
M
Michael Ripper
as Tom Reid
R
Ray Brooks
as Geoff Harker
S
Shelagh Fraser
as Joan Prentice
F
Freda Dowie
as Hilda
E
Edward Underdown
as Chairman of Tribunal
P
Patrick Godfrey
as Grant
J
James Maxwell
as Dr. Whittaker
P
Patrick Troughton
as Lyon McArthur
N
Noel Johnson
as Priestland
J
Judith Furse
as Mary Lincoln
T
Trevor Bannister
as Dr. Anthony Lewis
M
Margaret John
as Mrs. Joan Simpson
G
Geoffrey Palmer
as Major Sims
T
Talfryn Thomas
as Mr. Hetherington
J
John Savident
as The Minister
M
Michael Elwyn
as Richard Duncan
P
Peter Welch
as Tom Hedley
J
Jay Neill
as Laing
N
Nicholas Courtney
as Phillip
B
Brian Wilde
as Prof. Fairbairn
P
Paul Eddington
as Reynolds
R
Richard Hurndall
as Dr Robert Whitehead
M
Michael Aspel
as BBC Man Houston
W
William Fox
as Scott
P
Patricia Maynard
as Miss Sephton
G
Glyn Owen
as 'Griff' Griffiths
C
Colin Jeavons
as Botting
G
George A. Cooper
as Thomas Prentice
A
Anthony Ainley
as Senior House Officer
F
Frederick Hall
as Dennis Pritchard
G
Glyn Houston
as Gerald Marlowe
F
Frederick Jaeger
as Richard Massingham
E
Elisabeth Sladen
as Sarah Collins
P
Philip Bond
as Inspector Drew
P
Peter Hawkins
as Computer (voice)
C
Christopher Chittell
as Dick Burns
A
Aubrey Richards
as Bernard Colley
G
George Waring
as Busby
M
Michael Culver
as Minister's PPS
J
John Quarmby
as PM's Secretary
P
Paul Seed
as Michael Pratt
B
Bernard Horsfall
as Steven Granger
E
Edward Kelsey
as Captain Tommy Gort
G
George Pravda
as Prof. Miklos Egri
N
Nigel Stock
as Commander Charles Keeping
R
Rhoda Lewis
as Mrs. Freeman
L
Llewellyn Rees
as Rev. Charles Garrison
J
John Gregg
as Roger Halls
T
Trevor Eve
as Neil Tannahill
A
Amanda Ooms
as Meg Tannahill
P
Philip Stone
as Spencer Quist
S
Steve Toussaint
as Luke
T
Tony Sibbald
as Captain - First Airline Crew
A
Alex Scott
as Dr. Patrick
D
Donald Morley
as Air Commodore Parks
J
John Wood
as Nigel Waring
M
Moultrie Kelsall
as Alexander Drummond
R
Ronald Hines
as Ian Drummond
V
Viviane Ventura
as Paola Maria Totti
P
Penelope Lee
as Dr. Mary Bryant

Crew

K
Kit Pedler
Writer
T
Terence Dudley
Writer
T
Terence Dudley
Director
G
Gerry Davis
Writer
L
Lennie Mayne
Director
V
Vere Lorrimer
Director
K
Kit Pedler
Writer
T
Terence Dudley
Writer
D
David Sullivan Proudfoot
Director
B
Brian Hayles
Writer
E
Elwyn Jones
Writer
R
Roger Parkes
Writer
F
Frank Cox
Director
P
Pennant Roberts
Director
E
Eric Hills
Director
G
Gerry Davis
Writer
P
Paul Ciappessoni
Director
T
Terence Dudley
Writer
L
Louis Marks
Writer
M
Martin Worth
Writer
R
Roy Battersby
Director
D
Darrol Blake
Director
J
Jonathan Alwyn
Director
D
David Sullivan Proudfoot
Director
Q
Quentin Lawrence
Director
H
Hugh David
Director
D
Dennis Spooner
Writer
P
Patrick Alexander
Writer
M
Martin Worth
Writer
D
Don Shaw
Writer
N
N.J. Crisp
Writer
G
Gerry Davis
Writer
P
Pennant Roberts
Director
J
Joan Kemp-Welch
Director
D
Dennis Spooner
Writer
R
Robert Holmes
Writer
E
Eric Hills
Director
D
Darrol Blake
Director
J
Jonathan Alwyn
Director
J
John Gould
Writer
Q
Quentin Lawrence
Director
R
Robin Chapman
Writer
R
Roy Russell
Writer
I
Ian Curteis
Writer
J
John Howlett
Writer
S
Stuart Douglass
Writer
H
Harry Green
Writer
L
Louis Marks
Writer
J
Jim Stephens
Editorial Services
I
Ian McDonald
Writer