The blood-soaked tale of a Norse warrior's battle against the great and murderous troll, Grendel. Heads will roll. Out of allegiance to the King Hrothgar, the much respected Lord of the Danes, Beowulf leads a troop of warriors across the sea to rid a village of the marauding monster.
| Actor | Role |
|---|---|
 Gerard ButlerBeowulf | Beowulf |
 Spencer WildingGrendels Father | Grendels Father |
 Stellan SkarsgårdHrothgar | Hrothgar |
 Ingvar E. SigurðssonGrendel | Grendel |
| HHringur IngvarssonYoung Grendel | Young Grendel |
 Gunnar EyjólfssonAeschere | Aeschere |
 Tony CurranHondscioh | Hondscioh |
 Philip WhitchurchFisherman | Fisherman |
 Ronan VibertThorkel | Thorkel |
 Rory McCannBreca | Breca |
 Martin DelaneyThorfinn | Thorfinn |
 Ólafur Darri ÓlafssonUnferth | Unferth |
 Steinunn Ólína ÞorsteinsdóttirWealtheow | Wealtheow |
 Sarah PolleySelma | Selma |
 Eddie MarsanFather Brendan | Father Brendan |
 Gísli Örn GarðarssonErik | Erik |