Thorfinn (Vinland Saga)

Creation

Yukimura conceived Thorfinn as a protagonist fated to do violence, intending to create a violent character who grows to love peace after a major conflict ends the idea of a revenge quest. Another major influence was Kenshiro from Fist of the North Star; while Kenshiro was always a heroic fighter in a chaotic world, Yukimura had mixed feelings about how that protagonist tried to help others, which gave him ideas for Thorfinn. Thorfinn is loosely based on the historical explorer Thorfinn Karlsefni, whose story attracted Yukimura when he was reading a book. Little information about the real Thorfinn gave Yukimura more freedom in developing the fictional character. Several fans asked about Thorfinn's birthday; Yukimura replied that the real Thorfinn's birth date is not known, but he gave his fictional Thorfinn's birthday as February 3. Yukimura's editor was against the original idea of Thorfinn being a slave, so the character was changed to a Viking; the author agreed as he wanted Thorfinn to come to understand the tragedy he causes as a Viking in later parts of the narrative. Yukimura believes Thorfinn's growth with fellow Viking Askeladd was well executed. He insists that most characters are there to help Thorfinn's needs, with Askeladd being a rare exception as both mentor and enemy. Their relationship is meant to look like father and son; from the beginning, Yukimura was planning Askeladd's death and how Thorfinn would react. Another complicated relationship involves Einar and Thorfinn, as the two cannot help each other due to a dark narrative. Among several things Thorfinn does is learning the effects of revenge and how it affects others. The staff discussed what condition Thorfinn was in as he returned from the season finale; they could not use him effectively without working out how much savagery remained. Thorfinn's and Einar's relationship was an essential part of the story's entertainment factor, and the staff was glad they spent so much time on it.

Appearances

Thorfinn first appears as a young Viking in Askeladd's crew, driven by a single goal: to kill Askeladd for murdering his father, Thors. Flashbacks show Thorfinn as a curious Icelandic child who dreamed of reaching Vinland after hearing Leif's tales and stowed away on his father's ship, only to witness Thors' death at Askeladd's hands. In 1013, Askeladd's band works as mercenaries for Danish King Sweyn during the invasion of London, opposed by Thorkell the Tall, Thorfinn's uncle and a former comrade of Thors. When Thorkell pursues Askeladd, Thorfinn confronts him alone, insisting Askeladd belongs to him. After a fierce battle, Thorfinn defeats Thorkell, earning the nickname Thorfinn Karlsefni among the soldiers, but cannot finish his prey. Askeladd later kills King Sweyn in a staged fit of madness during an audience, clearing the way for Prince Canute to rule. Enraged, Thorfinn attacks the prince but is stopped by Thorkell. A year after Askeladd's death, Thorfinn works on Ketil's farm, where he befriends a slave named Einar who teaches him farming. With help from Einar, the security chief Snake, and Ketil's father Sverker, Thorfinn abandons his vengeful past and embraces peace. After failing to rescue Arnheid and her husband from Ketil and Snake, Thorfinn and Einar vow to build a utopia in Vinland free of slavery. Canute, seeing Thorfinn's transformation, spares the farm. Freed, the two say farewell to their friends and sail to Iceland with Leif, who had been searching for Thorfinn.

Reception

Critics initially focused on Thorfinn’s tragic backstory, specifically his father’s death. His strained bond with Askeladd drew frequent criticism, with reviewers noting it reduced Thorfinn to a pawn and that he spent many chapters failing to get revenge. Anime UK News pointed to his early dark traits, like moody stares and angst, as weaknesses. Polygon compared Thorfinn to the protagonist of The Northman, citing their shared revenge quests and historical inspiration, but praised his dynamic with Askeladd, whom Thorfinn sees as both a mortal enemy and a father figure. Thorfinn’s persistent questions about his father’s death were called the anime’s most crucial element, as he cannot move past it. The Escapist Magazine observed that Askeladd, Thorfinn, and Canute all seek revenge against their parents, and the story shows none of them benefit from it.

After Askeladd’s death, critics were struck by Thorfinn’s newfound quietness. Despite his enslavement, reviewers found his life with other slaves compelling. The Daily Star described his mundane slave existence as offering stories of redemption and self-discovery, even if imperfect. Screen Rant noted that Thorfinn and Einar remain victims of violence in the second arc, with owners threatening to kill them. Anime News Network argued that Thorfinn becomes a flat character after losing his innocence with Thors’ death, only regaining depth when Einar encourages him to find joy despite sorrow. The same outlet highlighted how Thorfinn and Canute’s values clash during their farm meeting. Polygon likened Thorfinn to pacifists like Shigeo Kageyama and Naruto Uzumaki, and praised his growth when he learns about Christianity and tells Canute’s army, “I have no enemies.” This redefinition of himself, rather than returning to Viking ways, was a major highlight of the anime.