A cunning, mysterious Viking who commands a mercenary band of vikings, of which Thorfinn is a member.
Askeladd is a tactical genius and a master swordsman. His ability to manipulate those around him turned a horde of pirates and raiders into a close-knit group loyal to him, as well as proving him capable of turning enemies into allies, as seen with Thorfinn, Thorkell, and Prince Canute.
(Source: Vinland Saga Wiki, edited)