"A prince and a fellowship of companions set out to rescue his bride from a fortress of alien invaders who have arrived on their home planet."
Ken Marshall
as Prince Colwyn
Lysette Anthony
as Lyssa
Freddie Jones
as Ynyr
Francesca Annis
as Widow of the Web
Alun Armstrong
as Torquil
David Battley
as Ergo
Bernard Bresslaw
as Cyclops
Liam Neeson
as Kegan
John Welsh
as Seer
Graham McGrath
as Titch
Tony Church
as Turold
Bernard Archard
as Eirig
Belinda Mayne
as Vella
Dicken Ashworth
as Bardolph
Todd Carty
as Oswyn
Robbie Coltrane
as Rhun
Clare McIntyre
as Merith
Bronco McLoughlin
as Nennog
Andy Bradford
as Darro
Gerard Naprous
as Quain
Bill Weston
as Menno
Lindsay Crouse
as Princess Lyssa (voice) (uncredited)
Michael Elphick
as Rhun (voice) (uncredited)
Derek Lyons
as White Slayer with Tiger (uncredited)
Trevor Martin
as The Beast (voice) (uncredited)
Dinny Powell
as Slayer in the Swamp (uncredited)
Nosher Powell
Tom Rumpf
as Sword Fighter (uncredited)
Peter Yates
Director
Stanford Sherman
Screenplay
Geoffrey Helman
Producer
Ron Silverman
James Horner
Original Music Composer
Peter Suschitzky
Director of Photography
Ray Lovejoy
Editor
Patsy Pollock
Casting
Stephen B. Grimes
Production Design
Norman Dorme
Art Direction
Colin Grimes
Tony Reading
Herbert Westbrook
Set Decoration
Anthony Mendleson
Costume Design
Greg Powell
Stunt Double
Tony Curtis
Ivan Sharrock
Sound Mixer
Kelvin Pike
Camera Operator
Alan Boyle
Makeup Artist
Barbara Ritchie
Hairstylist
Winston Ryder
Supervising Sound Effects Editor
John Richards
Scoring Mixer
Ted Mann
Executive Producer
Vic Armstrong
Stunt Coordinator
Derek Ware
Stunts
Mike Rutter
Focus Puller
Renee Heimer
Wardrobe Designer
Eddie Powell
Chris Corbould
Special Effects Technician