Milly Alcock
Milly Alcock’s screen presence shines brightest in her role as young Rhaenyra Targaryen on HBO’s Game of Thrones prequel, House of the Dragon, where she brings a mix of fierce determination and vulnerability to a key player in the sprawling Targaryen saga. Fans of genre television might also recognize her work on Supergirl, where she played a younger version of Kara Zor-El, adding depth to the iconic superhero’s backstory. Alcock’s performances stand out for their sharp emotional clarity, making her characters feel fully realized rather than just plot points. Collaborating with creators immersed in expansive fantasy worlds has helped her carve a niche that combines intensity with subtlety. Whether navigating the political intrigue of Westeros or the hopeful optimism of Krypton, Alcock’s work leaves a lasting impression on genre audiences looking for more than surface-level heroes.
Browse 1 HD movie screencap gallery featuring Milly Alcock, including Supergirl.
![Supergirl (2026) [4K]](https://i0.wp.com/movie-screencaps.com/wp-content/uploads/2026/08/supergirl-4k-movie-screencaps.com--scaled.jpg?fit=1024%2C427&ssl=1)