Doomwatch

Simon Oates

Dr. John Ridge

Robert Powell

Tobias Wren

John Nolan

Geoff Hardcastle

John Paul

Dr. Spencer Quist, Dr Spencer Quist

John Barron

The Minister, Minister

Robert James

Barker

Hamilton Dyce

Minister

Morris Perry

Prof. Alec Hetherington

Bruce Purchase

Norman Sylvester

Emrys Jones

Colonel Archibald Smithson

Leslie Schofield

Harry

Cec Linder

Sen. Connell

Katherine Kath

Lady Janette Holroyd

Jonathan Pryce

Police Constable

Desmond Llewelyn

Thompson

Michael Keating

Stephen Grigg

June Brown

Kit Pedler

Kevin Stoney

Prof. Hal Symonds

Jennifer Daniel

Dana Colley

William Lucas

Benjamin Fielding

Olaf Pooley

Dr. Ensor

Joseph Fürst

Dr. Charles Goldsworthy

Maurice Roëves

Peter Shipton

Erik Chitty

Old Man

George Baker

John Mitchell

Peter Copley

Admiral Sir Richard Tranton

Michael Ripper

Tom Reid

Ray Brooks

Geoff Harker

Shelagh Fraser

Joan Prentice

Freda Dowie

Hilda

Edward Underdown

Chairman of Tribunal

Patrick Godfrey

Grant

James Maxwell

Dr. Whittaker

Noel Johnson

Priestland

Judith Furse

Mary Lincoln

Trevor Bannister

Dr. Anthony Lewis

Margaret John

Mrs. Joan Simpson

Geoffrey Palmer

Major Sims

John Savident

The Minister

Michael Elwyn

Richard Duncan

Peter Welch

Tom Hedley

Nicholas Courtney

Phillip

Brian Wilde

Prof. Fairbairn

Paul Eddington

Reynolds

Richard Hurndall

Dr Robert Whitehead

Michael Aspel

BBC Man Houston

Patricia Maynard

Miss Sephton

Glyn Owen

'Griff' Griffiths

Colin Jeavons

Botting

George A. Cooper

Thomas Prentice

Anthony Ainley

Senior House Officer

Glyn Houston

Gerald Marlowe

Frederick Jaeger

Richard Massingham

Elisabeth Sladen

Sarah Collins

Philip Bond

Inspector Drew

Peter Hawkins

Computer (voice)

Christopher Chittell

Dick Burns

Aubrey Richards

Bernard Colley

George Waring

Busby

Michael Culver

Minister's PPS

John Quarmby

PM's Secretary

Paul Seed

Michael Pratt

Bernard Horsfall

Steven Granger

George Pravda

Prof. Miklos Egri

Nigel Stock

Commander Charles Keeping

Rhoda Lewis

Mrs. Freeman

Llewellyn Rees

Rev. Charles Garrison

John Gregg

Roger Halls

Trevor Eve

Neil Tannahill

John Lee

Jenson, Captain - Second Airline Crew

Amanda Ooms

Meg Tannahill

Philip Stone

Spencer Quist

Steve Toussaint

Luke

Alex Scott

Dr. Patrick

Donald Morley

Air Commodore Parks

John Wood

Nigel Waring

Moultrie Kelsall

Alexander Drummond

Ronald Hines

Ian Drummond

Viviane Ventura

Paola Maria Totti

Andreas Malandrinos

Passenger

Eileen Helsby

Joyce Chambers

Stephen Dudley

Small Boy

Hildegard Neil

Dr. Stella Robson

Veronica Strong

Carol Larch

Grant Taylor

Colonel Kramer

Kevin Scott

Gus Clarke

James Burke

BBC Man London

John Young

Dr. Alan Benson

John Comer

Jack

Jeremy Young

Vincent Llewellyn

David Davies

The Minister

Mary Hignett

Mrs. Adams

Ray Mort

Bill Jones

Sheila Raynor

Mrs. Knott, Mrs. Smith

Tommy Godfrey

Sam Billings

Shirley Dixon

Dr. Judith Lennox

Robert Gillespie

Dr. Warren

Arthur Brough

Sandy Larch

Barrie Cookson

Dr. Wilson

David Buck

Isaac Prentice

Geoffrey Chater

Mullery

Jean Trend

Dr. Fay Chantry

Angus MacKay

Professor Lewin

Michael Hawkins

Michael Beavis, Jim Bennett

Anthony Sharp

Dr. Ian Phelps

Barry Stokes

Stephen Franklin

Sally Thomsett

Judy Franklin

David Janson

Arnold McPherson

Bernard Hepton

Oscar Franklin

Patsy Byrne

Mary Franklin

Amanda Walker

Sister Trewin

Raymond Young

Mr. Tearson

Frederick Schiller

Mr. Faber

Harold Bennett

George Mason

Barry Foster

Dr. Carson

Bill Bailey

Reporter

Robert Urquhart

Jim Ainslie

Stephen Preston

Reporter

Stephanie Bidmead

Janine Griffiths

Anthony Newlands

Dr. George

Walter Horsbrugh

Dr. Seaton

Victor Platt

Police Inspector, Joe Bates

Patrick Troughton

Lyon McArthur / Alan McArthur

Alethea Charlton

Flora Seton

Roddy McMillan

Scobie

Frederick Treves

Dr. Henry Fane

Irene Prador

Mrs. Wilhelmina Grantz

John Kelland

Withers

Robin Davies

Malcolm Priestland

Peter Duncan

Colin Tredget

Derek Benfield

Arnold Payne

Roy Purcell

Dr. Barton

Bill Weston

Harry Nicholls

Barry Jackson

Dr. McEwan