Richard Heffer

as Mercer

as Loerke's Friend

as Captain Conover

as Major Halstead

as Monsieur Balcombe

as Thaddeus Sholto

as Jimmy Garland

as Dr. Schmidt

as Michaelson

as Albert Hughes

as Adrian

as Capt. Tim Downing

as David

as Claude

as Alan Napier

as David Relton

as Harry Druce

as Brown

as Assistant Superintendent Poppy

as Phillips

as UN Colonel

as Peter Porteous

as Dr. Eric Hewson

as DS Martin McClure

as Wallace

as DS Alan Bruton

as Self (archive footage)

as Group Captain Davidson

as Roger Brown

as Michael Hilliard

as Peter Witney

as Richard Brinkley

as Colonel Beverly

as Narrator

as Narrator

as Narrator

as Danby

as Colonel Yarmouth