Milly Alcock

Milly Alcock was born on April 11, 2000, in Sydney, Australia. Her acting career began in 2014 with a television debut in “Wonderland.” She continued to appear in various Australian productions, establishing herself in the industry. Her early work included commercial appearances for brands like Cadbury, KFC, and Woolworths, and hosting roles on Disney Channel shows “B.F. Chefs” and “Hanging With” between 2015 and 2017. In 2017, she took on more prominent roles as Isabella Barrett in the web miniseries “High Life” and Cindi Jackson in the ABC Television drama “Janet King.”

Alcock’s career progression saw her take on multiple roles in 2018, such as Maya Nordenfelt in “Fighting Season,” Emma Carvolth in “A Place to Call Home,” Marissa Campbell in “Pine Gap,” and Sian Galese in “Les Norton.” She also made her feature film debut in “The School” that same year. A significant turning point came in 2019 when she starred as Meg in the Foxtel comedy-drama “Upright,” a role for which she received a nomination for Best Comedy Performer at the 10th AACTA Awards and earned a Casting Guild of Australia Rising Star Award in 2018. She reprised her role in “Upright” for its second season in 2022 and also appeared in “The Gloaming” and “Reckoning.”

Global recognition arrived in 2022 with her portrayal of young Rhaenyra Targaryen in HBO’s “House of the Dragon,” a prequel to “Game of Thrones.” Her performance garnered critical acclaim, leading to a nomination for Critics’ Choice Television Award for Best Supporting Actress in a Drama Series. In 2023, she appeared in Noel Gallagher’s High Flying Birds’ music video for “Easy Now” and made her West End stage debut in “The Crucible.” Looking ahead, Alcock is slated to enter the DC Universe as Kara Zor-El / Supergirl, with a cameo in 2025’s “Superman” and a starring role in 2026’s “Supergirl.” She also joined the cast of the Netflix limited series “Sirens” in 2025.