Doomwatch

Dr. Shaw

Victoria Brown

Dr. Quist

The Admiral

Dr. Ridge

Dr. Fay Chantry

Bradley

Hartwell

Mrs. Betty Straker

Sir Henry Leyton

Vicar

Brewer

Miss Johnson

Tom Straker

Bob Gillette

George

Ferry Skipper

Lt. Com. Tavener

David Broome

Brian Murray

Mrs. Murray

Mr. Murray

Grandfather Murray

Sam