Barry Quin

as Samuel Keifer

as Engineer

as Professor Sorvad

as Julian Roberts

as Dr. Keith Simms

as Dr. Bennett

as Francis Considine

as Ed Jarvis

as Dr. Philip Grigg

as Dr. Greg Miller

as Mr. Scanlon

as Lionel Huxley

as The Hon. W. H. Lyttelton

as Solicitor

as Richard Barwell

as Hugo Brayford

as Leutnant Hicks

as Gervaise de Lutrelle