Nyah
Patricia Laffan
Michael Carter
Hugh McDermott
Ellen Prestwick
Hazel Court
Prof. Arnold Hennessy
Joseph Tomelty
Doris
Adrienne Corri
Robert Justin / Albert Simpson
Peter Reynolds
Mrs.Jamieson
Sophie Stewart
Mr. Jamieson
John Laurie
Tommy
Anthony Richmond
Sound Editor
Gerry Anderson
Screenplay
James Eastwood
Editor
Brough Taylor
Director
David MacDonald
Original Music Composer
Edwin Astley
Producer
Edward J. Danziger
Harry Lee Danziger
Director of Photography
Jack E. Cox
Art Direction
Norman G. Arnold
Special Effects
Jack Whitehead
Script Supervisor
Betty Forster
Makeup Artist
George Partleton