Floki

Floki is a Jomsviking commander and was one of the principal Viking commanders under Sweyn during the invasion of England and subsequently under Canute. Floki is a central antagonist in Vinland Saga and the man who contracted Askeladd to assassinate his former comrade, Thors. This act orchestrated most of the events that happened in the series and caused great tragedy to the protagonist, Thorfinn.