"During World War I, a German U-boat sinks a British passenger ship and takes the survivors aboard. After getting lost in fog, the submarine surfaces near the unknown island of Caprona, a lost world where they find dinosaurs and Neanderthals."
Doug McClure
as Bowen Tyler
John McEnery
as Captain Von Schoenvorts
Susan Penhaligon
as Lisa Clayton
Keith Barron
as Bradley
Anthony Ainley
as Dietz
Godfrey James
as Borg
Bobby Parr
as Ahm
Declan Mulholland
as Olson
Colin Farrell
as Whiteley
Ben Howard
as Benson
Roy Holder
as Plesser
Andrew McCulloch
as Sinclair
Ron Pember
as Jones
Grahame Mallard
as Deusett
Andrew Lodge
as Reuther
Stanley McGeagh
as Hiller
Steve James
as First Sto-Lu
Brian Hall
as Schwartz
Peter Sproule
as Hindle
Michael Moorcock
Screenplay
Edgar Rice Burroughs
Novel
Kevin Connor
Director
James Cawthorn
Alan Hume
Director of Photography
Douglas Gamley
Original Music Composer
Maurice Carter
Production Design
Julie Harris
Costume Design
John Dark
Producer
Bert Davey
Art Direction
Max Rosenberg
Robert H. Greenberg
Executive Producer
John Peverall
Associate Producer
John Ireland
Editor
Milton Subotsky
Derek Meddings
Special Effects Supervisor
Ian Wingrove
Special Effects
Roger Dicken
Doreen Soan
Continuity