• 
  Robert Zemeckis

  regizor

• 
  Neil Gaiman

  scenarist

• 
  Angelina Jolie

  mama lui Grendel (voce)
• 
  Ray Winstone

  Beowulf
• 
  Brendan Gleeson

  Wiglaf
• 
  Anthony Hopkins

  Hrothgar
• 
  Crispin Glover

  Grendel
• 
  Robin Wright

  Wealthow

• 
  John Malkovich

  Unferth
• 
  Chris Coppola

  Olaf
• 
  Alison Lohman

  Ursula
• 
  Sebastian Roché

  Wulfgar
• 
  Sonje Fortag

  Gitte
• 
  Nick Jameson

  Drunken Thane
• 
  Rik Young

  Eofor

• 
  Tyler Steelman

  Young Cain
• 
  Jacquie Barnbrook

  Aethelbeorg
• 
  Costas Mandylor

  Hondshew
• 
  Kevin Dorman

  Additional Adult Performer
• 
  Julene Renee

  Cille
• 
  Charlotte Salt

  Estrith
• 
  Shay Duffin

  Scylding's Watch
• 
  Dominic Keating

  Cain
• 
  Camille Lannan

  Additional Adult Performer
• 
  Leslie Zemeckis

  Yrsa
• 
  Jonny Rees

  Garmund
• 
  Neil Dickson

  Voice Performer
• 
  Fred Tatasciore

  Voice Performer
• 
  Sharisse Baker-Bernard

  Hild
• 
  Brice Martin

  Musician #4 (as Brice H. Martin)
• 
  John Bilezikjian

  Musician #2
• 
  Rod D. Harbour

  Musician #3
• 
  Paul Baker

  Musician #1

• 
  Robert Presley

  imagine
• 
  Gabriella Pescucci

  costume
• 
  Jeremiah O'Driscoll

  montaj
• 
  Alan Silvestri

  coloană sonoră