Jefferson Hall

Jefferson Hall, occasionally credited as Robert Hall in his earlier roles, is an English actor. He is known for the roles of Hugh of the Vale in Game of Thrones, Varg in Wizards vs Aliens on CBBC, Torstein in Vikings, Aaron Korey in Halloween, twins Jason Lannister and Tyland Lannister in House of the Dragon, and Haakon Chevalier in Oppenheimer.

GAME OF THRONES SEASON 1, EPISODE 4

Cripples, Bastards, and Broken Things

Ned looks to a book for clues to the death of his predecessor, and uncovers one of King Robert's bastards. Robert and his guests witness a tournament honoring Ned. Jon takes measures to protect Sam from further abuse at Castle Black; a frustrated Viserys clashes with Daenerys in Vaes Dothrak; Sansa imagines her future as a queen, while Arya envisions a far different future. Catelyn rallies her husband's allies to make a point, while Tyrion finds himself caught in the wrong place at the wrong time.
GAME OF THRONES SEASON 1, EPISODE 5

The Wolf and the Lion

Incensed over news of Daenerys' alliance with the Dothraki, Robert orders a pre-emptive strike on the Targaryens that drives a wedge in his relationship with Ned. A captive Tyrion helps Catelyn, but receives a cold reception at the Eyrie from her sister, John Arryn's widow Lysa. Sansa is charmed by the dashing Ser Loras Tyrell, a.k.a. the Knight of Flowers. Arya overhears a plot against her father.