Jeffrey Byron

Luther Starling

Larry Cedar

Roger Pike

Roy Kinnear

Bidley

Lee Montague

Vorg

Mona Washbourne

Aunt Lydia

David Kossoff

Prof. Buchinski

Frank Windsor

McGuffin

Walter Gotell

Simmons

Nigel Davenport

Arthur Minton

Dudley Sutton

Goetz

David Battley

Peters

Julian Orchard

Driscoll

Kathleen Harrison

Elderly Lady

Percy Herbert

Ship's Captain

Don Fellows

General

Robert Clouse