'Game of Thrones' Spinoff 'House of the Dragon' Adds Olivia Cooke, Matt Smith and Emma D'Arcy

Olivia Cooke, Matt Smith and Emma D’Arcy have joined the cast of “Game of Thrones” spinoff “House of the Dragon,” HBO said Friday. They join previously announced star Paddy Considine, who will play King Viserys Targaryen. Based on George R.R. Martin’s “Fire & Blood,” the prequel series, which is set 300 years before the events of “Game of Thrones,” tells the story of House Targaryen. Cooke will play Alicent Hightower, “the daughter of Otto Hightower, the Hand of the King, a...