Tjure is a main crew member in Halvar's Viking group within the village of Flake. He shares a long history of frequent arguments and disagreements with fellow crew member Snorre, a dynamic rooted in their childhood interactions. Despite this contentious relationship, they occasionally demonstrate cooperation and mutual support, evident during specific incidents like those in the Trojan episode.

Physically, Tjure is characterized by brown hair, a long face, blue eyes, and a relatively lanky build. He typically wears traditional Viking headgear.

His personality exhibits high self-confidence, a challenging nature, and competitiveness. He demonstrates persistence in pursuing objectives and a protective instinct toward those he cares about in dangerous situations. However, his pronounced pride sometimes leads to interpersonal friction. He maintains friendly relations with younger villagers, including Vicky and Ylvi.

Tjure is married to Pilchard and is the father of eight children, though only three—Erik, Son of Tjure, and Karl—appear within the series narrative. Beyond raiding, he possesses carpentry skills and assumes responsibility for maintaining and repairing the village's Viking ship, especially when not engaged in disputes with Snorre.

The character appears consistently across adaptations. He maintains his role within Halvar's crew in both the original animated series and the CGI reboot, where his argumentative dynamic with Snorre remains a recurring element. In live-action film adaptations, Tjure continues as part of the core Viking group accompanying Halvar and Vicky on adventures.