House of the Dragon's season 3 finale, "The Treasons at Tumbleton," adds another name to that list: Ser Ulf the White (Tom Bennett). The House of the Dragon creative team may find themselves at a crossroads regarding Ulf's season 4 story. Tom Bennett (Ulf) in House of the Dragon season 3 | Photograph by Ollie Upton/HBOUlf during the Sack of TumbletonThe First Battle of Tumbleton, the ending point for House of the Dragon season 3 and the site of Ulf's big betrayal, is immediately followed by the Sack of Tumbleton, which has yet to appear on screen. Tom Bennett as Ulf the White in House of the Dragon season 3 episode 8. In fact, most of House of the Dragon season 3 paints Ulf in a sympathetic light.