Kirk Douglas
Einar
Tony Curtis
Eric
Ernest Borgnine
Ragnar
Janet Leigh
Morgana
James Donald
Lord Egbert
Alexander Knox
Father Godwin
Maxine Audley
Enid
Frank Thring
Aella
Eileen Way
Kitala
Edric Connor
Sandpiper
Dandy Nichols
Bridget
Per Buckhøj
Bjorn
Almut Berg
Pigtails (uncredited)
Peter Capell
Minor Role (uncredited)
Bill Cummings
Viking Warrior (uncredited)
Kelly Curtis
Young Girl (uncredited)
Peter Douglas
Young Boy (uncredited)
Georges Guéret
Viking Warrior (uncredited)
Rico López
Viking Warrior (uncredited)
Marco Perrin
Extra (uncredited)
Paul Préboist
Extra (uncredited)
Orson Welles
Narrator (voice) (uncredited)
Dale Wasserman
Adaptation
Edison Marshall
Novel
Jack Cardiff
Director of Photography
Richard Fleischer
Director
Calder Willingham
Screenplay
Walter Wottitz
Second Unit Director of Photography
Janet Leigh
Executive Producer
Claude Carliez
Fight Choreographer
Eddie Powell
Stunts
Christian Ferry
Location Manager
Jacques Planté
Production Manager
Peter Berling
Translator
Kirk Douglas
Executive Producer
Bill Cummings
Stunts
Tony Curtis
Executive Producer
Gerard Schurmann
Orchestrator
Lucie Lichtig
Continuity
Eddie Fowlie
Property Master
John Sullivan
Stunt Double
James Devis
Focus Puller
Ken Buckle
Stunts
George Pink
Camera Technician
Lutz Hengst
Production Manager
Lee Katz
Associate Producer
Peter Berling
Sound Assistant
Gordon K. McCallum
Sound Mixer
Georges Guéret
Stunts
Marc Hyams
Clapper Loader
David Sharpe
Stunt Double
Jack Cooper
Stunts
Henri Guégan
Stunts
Jack Hirshberg
Unit Publicist
Bill Kirby
Production Manager
Mario Nascimbene
Original Music Composer
Joseph de Bretagne
Sound
Neville Smallwood
Makeup Artist
Vasco Reggiani
Hairdresser
Harper Goff
Production Design
Elmo Williams
Supervising Editor
Jerry Bresler
Producer
Gabriella Reggiani
Hairdresser
Franco Ferrara
Conductor
John O'Gorman
Makeup Artist
Harper Goff
Producer's Assistant
Mario Nascimbene
Music Arranger
André Smagghe
Assistant Director
Julien Derode
Production Manager
Elmo Williams
Second Unit Director