Edward Judd

Dr. Mike Vernon

Yoko Tani

Leader of the Lystrians

Valerie Gearon

Dr. Claire Harland

Lyndon Brook

Brian Carter

Ric Young

The Lystrian

Tsai Chin

Nurse Lim

Barrie Ingham

Major Muncaster

Anthony Sharp

Lawrence Blackburn

Glyn Houston

Police Sergeant Draycott

Ann Castle

John Tate

Jean Lodge

Ann Martin

Tony Wall

Peter Thomas

Mark Kingston

Emrys Leyshon

Leonard Cracknell

Stephanie Bidmead

Norman Mitchell

Peter Sinclair

Diane Aubrey

John Tate

Dundy