Milly Alcock

Milly Alcock is an Australian actress known for her breakout role as young Rhaenyra Targaryen in HBO's House of the Dragon. Her portrayal of the headstrong princess earned her a Critics' Choice Award nomination. She was cast as Kara Zor-El / Supergirl in James Gunn's DC Universe, making an uncredited cameo in Superman and set to star in Supergirl: Woman of Tomorrow. Alcock's grounded performances and natural screen presence have made her one of the most sought-after young actors in Hollywood.[edit]

Amelia May Alcock, known professionally as Milly Alcock, was born on April 11, 2000, in Sydney, Australia. She spent her formative years growing up in the Sydney suburb of Tempe. Her upbringing was influenced by a family with creative leanings; her father worked as a graphic designer, while her mother was actively involved in the arts. From a young age, Alcock displayed a keen interest in performance, leading her to attend the prestigious Newtown High School of the Performing Arts. There, she honed her craft, dedicating her studies to drama and actively participating in various school productions, which provided her with initial experience on stage.

Her talent quickly translated into professional opportunities. At the remarkably young age of 14, Alcock secured her first professional acting credit, appearing in the short film The Schoolies in 2014. This early success paved the way for further roles in Australian television. Over the next few years, she gained valuable experience through guest appearances in a string of prominent Australian TV series, including Wonderland in 2014, Janet King in 2017, and A Place to Call Home, also in 2017. These experiences solidified her ambition to pursue acting as a full-time career. Consequently, at the age of 17, with the full support of her family, Alcock made the significant decision to leave high school to dedicate herself entirely to her burgeoning acting career.

Her unwavering commitment soon paid off. Milly Alcock's significant breakthrough arrived when she was cast in a pivotal lead role in the Foxtel comedy-drama Upright. The series, which premiered in 2019, showcased her talent to a wider audience and marked a turning point in her professional journey, transitioning her from promising young talent to a recognized actress on the Australian screen.[edit]

Alcock's career breakthrough came with Upright (2019-2022), where she played Meg, a teenage runaway who learns to play guitar. The role earned her an AACTA Award nomination. In 2021, she was cast as young Rhaenyra Targaryen in HBO's House of the Dragon, a prequel to Game of Thrones. The series premiered in 2022 to massive viewership, and Alcock's performance received widespread critical acclaim, leading to a Critics' Choice Television Award nomination. She completed her arc in season 2 (2024). In 2025, she was cast as Supergirl in the DC Universe, making an uncredited cameo in Superman. She is currently filming the lead role in Supergirl: Woman of Tomorrow, set for release in 2026.[edit]

Milly Alcock is known for her natural, understated style, often wearing Australian designers like Zimmermann and Aje on the red carpet. The media describes her as grounded, talented, and poised beyond her years. She keeps a low-key social media presence on Instagram, where she shares professional shoots and behind-the-scenes content. Fans celebrate her casting as Supergirl and create fan art of her Rhaenyra character. She does not have an official fandom name.[edit]

Milly Alcock's audience is a distinct blend of genre loyalists and those drawn to her grounded, naturalistic screen presence. While she lacks a formalized fandom name, her supporters are deeply embedded in the broader communities for *House of the Dragon* and the DC Universe, often celebrating her linguistic versatility as a defining trait of her career. Fans frequently highlight her ability to master fictional languages like High Valyrian and Kryptonian, turning her performances into a unique point of discussion within online forums. The community has also rallied around her narrative of navigating intense scrutiny, with many followers appreciating her public stance on tuning out toxicity rather than engaging in organized campaigns or fan-funded projects. This organic following creates a space where appreciation for her craft takes precedence over ritualized adoration. Her standing in the global consciousness remains robust, reflecting her rapid ascent from Australian independent cinema to major franchise lead roles. According to the iFANN Global Fame Rankings, Milly Alcock is the 44th most famous person in Australia, holding steady from the previous cycle. She ranks as the 10th most famous person from Australia, maintaining her position firmly in the top tier of her origin country. In the broader region, she is recognized as the 45th most famous person in Oceania. Within the entertainment industry specifically, her prominence in the superhero genre is undeniable, placing her at the 3rd most famous person in DC Universe.[edit]

Before filming *Upright*, Alcock dedicated months to learning guitar so she could play authentically on screen. She was just 21 years old when she secured the role of young Rhaenyra Targaryen in *House of the Dragon*, initially submitting her audition via self-tape during the height of the pandemic. Her love for literature is evident in her choice of favorite book, Donna Tartt's *The Secret History*. Beyond acting, she brings a disciplined background in ballet and contemporary dance to her physical performances. Alcock has consistently expressed a desire to balance her Hollywood blockbusters with independent Australian films. A widely retold story among fans highlights her linguistic prowess, noting she spoke both High Valyrian and Kryptonian, leading some to dub her the queen of fictional languages. Another significant chapter in her recent history involves her public comments regarding her father's faith, which became a focal point of industry analysis following the underperformance of the film *Supergirl*. Reports suggest these remarks contributed to significant financial losses for the project, framing her career trajectory as a complex mix of critical acclaim and commercial controversy.[edit]

Milly Alcock's father is a graphic designer, and her mother works in the arts. She has one younger brother. The family lived in the Sydney suburb of Tempe. Alcock has described her parents as supportive of her decision to leave school at 17 to pursue acting. She currently lives in London while filming Supergirl: Woman of Tomorrow.[edit]

Milly Alcock has worked closely with Emma D'Arcy, who played the older Rhaenyra in House of the Dragon, and Matt Smith, who played Daemon Targaryen. She starred opposite Tim Minchin in Upright. James Gunn cast her as Supergirl, and Craig Gillespie directs her in Supergirl: Woman of Tomorrow.[edit]

Milly Alcock has kept her personal life extremely private. As of 2026, she has not publicly confirmed any romantic relationships. There are no credible reports of her dating any co-star or public figure. She has stated in interviews that she prefers to keep her private life out of the spotlight. She is currently single.[edit]

Per iFANN's editorial analysis, Milly Alcock's estimated net worth stands at $2 Million as of 2026. For her work on *House of the Dragon*, she reportedly earned between $50,000 and $100,000 per episode. Her compensation for *Supergirl: Woman of Tomorrow* is projected to be significantly higher, likely falling within the $500,000 to $1 million range. There are no publicly confirmed endorsement deals or real estate holdings attributed to her at this time. Her financial profile is expected to see substantial growth following the release of the upcoming Supergirl film.[edit]

Milly Alcock has received nominations for her performances but has not yet won a major industry award. She was nominated for an AACTA Award for Best Actress in a Comedy Series for Upright in 2020 and a Critics' Choice Television Award for Best Supporting Actress in a Drama Series for House of the Dragon in 2023.[edit]