Thorkell is a Jomsviking general and the brother of the Jomsviking Chief. A towering figure with an intense passion for combat, he leaves the Danish army to become a mercenary for the English, seeking more formidable challenges by fighting against his fellow Vikings. His love for warfare also drives him to back Prince Canute's claim to the throne of Denmark. Prior to Thors' defection, Thorkell works closely with him and holds him in high regard, while also harboring affection for Thors' son, Thorfinn, throughout the main storyline. He engages in two duels with Thorfinn, emerging victorious each time, though he loses two fingers in the first duel and an eye in the second. In battle, Thorkell favors using a pair of axes as his primary weapons, yet his most significant advantage lies in his immense physical strength. During a skirmish with Askeladd's band, he threw a spear with such incredible force that it pierced through three men simultaneously, despite being thrown from several hundred feet away. Thorkell's character is inspired by Thorkell the Tall, a historical Jomsviking lord who mentors Canute according to the Flateyjarbók.
He joins Canute as his servant after witnessing his transformation in front of Askeladd and Thorfinn.
