Dr. Stephen Mitchell

Howard Duff

Acting

Dr. Lisa Frank

Eva Bartok

Acting

Dr. Smith

Alan Wheatley

Acting

Professor Koepler

Philip Leaver

Acting

Dr. Toby Andrews

Michael Medwin

Acting

Dr. Philip Crenshaw

Andrew Osborn

Acting

Vanessa Mitchell

Cecile Chevreau

Acting

General Hayes

Anthony Ireland

Acting

Colonel Alfred Daniels

Hugh Moxey

Acting

Minister

David Horne

Acting

Sergeant Peterson (uncredited)

Leo Phillips

Acting

Mrs. Rogers (uncredited)

Marianne Stone

Acting

Mrs. Daniels (uncredited)

Jean Webster-Brough

Acting