Doomwatch

John Paul

Dr. Spencer Quist

Simon Oates

Dr. John Ridge

Vivien Sherrard

Barbara Mason

Joby Blanshard

Colin Bradley

Robert Powell

Tobias Wren

John Nolan

Geoff Hardcastle

Jean Trend

Dr. Fay Chantry

Michael Elwyn

Richard Duncan

Wendy Hall

Pat Hunisett

John Barron

Minister

John Lee

Captain - Second Airline Crew

Talfryn Thomas

Prisoner Warren

Elizabeth Weaver

Dr. Anne Tarrant

Robert James

Barker

Hamilton Dyce

Minister

Margaret John

Mrs. Joan Simpson

Geoffrey Palmer

Major Sims

John Savident

The Minister

John Berryman

Reporter

Robert Sansom

Dr. Hugh Preston

Sheila Raynor

Mrs. Knott

Mary Loughran

Air Hostess

Caroline Rogers

Julie

Michael Hawkins

Michael Beavis

Marcelle Samett

Nurse

Edward Evans

Coroner

Gloria Connell

Nurse

Victor Platt

Police Inspector

John Bown

Commander Neil Stafford

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