“Supergirl” star Milly Alcock’s first big role outside of Australia was dragon sized. As Rhaenyra Targaryen in “House of the Dragon” — HBO’s “Game of Thrones” prequel series that premiered in August 2022 — Alcock played the headstrong, dragon-riding princess whom her father names as his heir, causing chaos in Westeros. Alcock landed the part at […]
