Season 5 reveals that Ubbe is the closest to Ragnar’s original dream: farmland . His conflict with Ivar is not about succession; it is about the soul of the Viking people. Do they remain raiders (Ivar) or become explorers (Ubbe)? Smith’s understated performance is the anchor that keeps the show from floating into pure melodrama.
With the death of Ragnar, the narrative weight shifted to his sons, each representing a different facet of their father's legacy:
Ubbe emerges as the "diplomat" among the brothers. Smith portrays Ubbe as the most like Ragnar, favoring negotiation over bloodshed. His storyline focuses on peace with the Saxons and his relationship with his wife, Margrethe. viking season 5 cast
If there is a Shakespearean fool in this tragedy, it is Hvitserk. Marco Ilsø plays him as a weather vane spinning in a hurricane. He is the middle child syndrome personified. In Season 5, Hvitserk’s allegiances shift so often that he becomes a commentary on PTSD.
The civil war between Lagertha and Ivar is the central thesis of Season 5. It is the past (the old, honorable Viking way) vs. the future (ruthless, Christian-influenced absolutism). Winnick plays the final act of her reign with a sword in one hand and a bottle of mead in the other—a warrior losing her war against time. Season 5 reveals that Ubbe is the closest
Andersen is arguably the breakout star of this season. As Ivar, he is the antagonist audiences love to hate. His character evolves from a marginalized son to a tyrant king of Kattegat. Andersen’s performance is physically demanding and psychologically complex, portraying Ivar’s brilliance, cruelty, and deep-seated insecurity.
Floki’s arc is a meta-commentary on faith. Having destroyed the church in England and killed Athelstan, Floki has no enemy left but himself. In Iceland, he finds not Valhalla, but loneliness. Skarsgård’s performance becomes primal, screaming at the gods in a cave. It is the most "actorly" performance of the season, stripping away dialogue for raw, guttural sound. Smith’s understated performance is the anchor that keeps
Following the death of Helga, Floki embarked on a spiritual journey to "the land of the gods," leading a group of settlers to Iceland.
The cast of Vikings Season 5 succeeds because they refuse to replace Ragnar. Instead, they shatter his image into a dozen mirrors. Alex Høgh Andersen gives us the terrifying intellect; Alexander Ludwig gives us the heroic decay; Gustaf Skarsgård gives us the madness of faith.
(Alexander Ludwig): Ludwig’s Bjorn is the season’s physical anchor, mirroring Ragnar’s wanderlust. His journey to North Africa and eventual return to claim Kattegat positions him as the "reincarnation" of his father's better traits—the explorer and the protective ruler.
Bjorn’s tragedy in Season 5 is that he is the rightful heir who doesn't want the crown. Ludwig plays him with a heavy, lumbering exhaustion. His fight scenes are not acrobatic; they are brutal, heavy, and cost him something. The casting contrast between the lithe Ivar and the hulking Bjorn visualizes the ideological war: Tradition vs. Tyranny.