Alfred’s older brother and the rightful king of Wessex. Aethelred is brave but less cunning than Alfred, and his relationship with the Danes is fraught. Cahill gives Aethelred a noble but doomed energy, leading to a shocking betrayal.
The mysterious, disfigured oracle of Kattegat. Though he appears less frequently in Season 5, his cryptic prophecies continue to haunt Lagertha, Björn, and Ivar. Kavanagh’s eerie, mournful delivery remains a series highlight. Major New Additions Georgia Hirst as Torvi Previously a supporting character, Torvi becomes a central figure. A shield-maiden and mother, she serves as Björn’s partner and advisor. Hirst brings quiet resilience and a maternal fierceness, surviving battles, betrayal, and loss. cast of season 5 of vikings
Introduced in Season 4, Alfred grows into a key player. Now a young king, he is wise beyond his years, devout, and strategic. Walsh-Peelo portrays Alfred as a calm foil to the Norse warriors—a ruler who wins through intellect, faith, and patience, not just force. Alfred’s older brother and the rightful king of Wessex
Introduced in the second half of Season 5, Erik is a mysterious, charismatic traveler who arrives in Kattegat and quickly becomes entangled with Björn and Lagertha. Johnson plays Erik as a smooth-talking, morally ambiguous figure whose true loyalties remain unclear. The mysterious, disfigured oracle of Kattegat
A young, ambitious shield-maiden who becomes Lagertha’s protégé and later Queen of Kattegat. Amma’s rivalry with Torvi and her tragic death add tension to the civil war plot.