Milly Alcock
Definition
Amelia May "Milly" Alcock (born 11 April 2000) is an Australian actress best known for her breakout role as young Princess Rhaenyra Targaryen in HBO's House of the Dragon (2022–2024), earning critical acclaim and multiple award nominations.
Rising star with notable roles in Upright (2019–2022), the Netflix series Sirens (2025), and as Kara Zor-El/Supergirl in the DC Universe, including a cameo in Superman (2025) and starring in Supergirl: Woman of Tomorrow (2026).
Examples
Milly Alcock's Rhaenyra had me yelling 'Dracarys!' at my TV remote during every episode.
Trading fire-breathing dragons for Kryptonian powers? Milly Alcock is basically leveling up her superhero resume.
When Milly Alcock giggled uncontrollably at the Golden Globes, it reminded us even Targaryen queens need a laugh break.
Spot Milly Alcock in Sirens, where she's serving dark comedy sharper than Valyrian steel.