Among the notable characters are Leif Erikson and Freydis Eiríksdottir, both real historical figures known for their explorations and boldness.
Leif Erikson, often celebrated as one of the first Europeans to reach North America around 1000 AD, is a central character in the series. His journey across the Atlantic to what he named Vinland showcases Viking exploration’s spirit and ambition. Accompanying him is his sister, Freydis, a fierce and tenacious warrior who defies traditional gender roles of her time. Freydis's exploits highlight the strength and resilience of women in the Viking age, adding depth to the narrative.

The series also features Harald Sigurdsson, a historical figure known as Harald Hardrada, a powerful king with aspirations of uniting Norway under his rule. His ambitions lead to conflicts that shape the fate of the Vikings. Another key character is Emma of Norway, who played a significant role in England's power dynamics during the time.
While Vikings: Valhalla brings fictional elements and dramatic storytelling to life, these characters’ real histories provide a rich backdrop that enhances the narrative. The blending of historical figures with imaginative storytelling captivates audiences, making the series both entertaining and informative about the Viking legacy.