Doomwatch

Ian Bannen

Dr. Shaw

Judy Geeson

Victoria Brown

John Paul

Dr. Quist

George Sanders

The Admiral

Simon Oates

Dr. Ridge

Jean Trend

Dr. Fay Chantry

Joby Blanshard

Bradley

Percy Herbert

Hartwell

Shelagh Fraser

Mrs. Betty Straker

Geoffrey Keen

Sir Henry Leyton

Joseph O'Conor

Vicar

Norman Bird

Brewer