Peter Claffey

Peter Claffey is an Irish actor who landed one of television’s most anticipated roles as his first major screen credit. Born in Ireland, Claffey trained at the Lir Academy in Dublin, the National Academy of Dramatic Art affiliated with Trinity College.

Before his breakthrough, Claffey performed primarily in theater, honing his craft on the Dublin stage. His talent caught the attention of HBO casting directors looking for the perfect actor to play Ser Duncan the Tall, one of the most beloved characters from George R.R. Martin’s world.

In A Knight of the Seven Kingdoms (2026), Claffey takes on the lead role of Ser Duncan the Tall (Dunk), a hedge knight wandering Westeros a century before the events of Game of Thrones. Standing at 6’5″, Claffey physically embodies the towering knight from Martin’s Dunk and Egg novellas.

The role represents a major breakthrough for Claffey, who must carry a prestige HBO series set in one of television’s most beloved fictional universes. Early reviews praise his charm and presence in the role.