Milly Alcock

Amelia May Alcock (born 11 April 2000) is an Australian actress. She received an AACTA Award nomination for her performance in the Foxtel comedy-drama Upright (2019–2022). She gained wider recognition for starring as young Rhaenyra Targaryen in the HBO fantasy series House of the Dragon (2022–2024), for which she was nominated for a Critics' Choice Award. was born on 11 April 2000 She has two younger brothers. Alcock was introduced to acting upon playing Little Red Riding Hood in Taverners Hill Infants School's version of Little Red Rocking Hood. She attended the local Stanmore Public School and then Newtown High School of the Performing Arts, from where she dropped out in 2018 when she was cast in Upright.

Career Alcock made her television debut as a teenager in a 2014 episode of the Network Ten romantic comedy Wonderland.

The following year, Alcock played Maya Nordenfelt in the Showcase drama Fighting Season. She also appeared in the sixth and final series of A Place to Call Home as Emma Carvolth, the Netflix series Pine Gap as Marissa Campbell, and the ABC series Les Norton as Sian Galese. In 2018, Alcock appeared in her first feature film The School.

In 2019, Alcock began starring in the Foxtel comedy-drama series Upright as runaway teenager Meg, hitchhiking across of the Australian outback, a contributing factor to her being presented with a Casting Guild of Australia Rising Star Award 2018. For her performance, Alcock was nominated for Best Comedy Performer at the 10th AACTA Awards, making her one of the youngest nominees in the category. Alcock returned for Upright second series in 2022. She also had supporting roles as Jenny McGinty and Sam Serrato in the series The Gloaming and Reckoning, respectively. Alcock garnered critical acclaim and was considered a highlight; Daniel van Boom for CNET wrote: "the shining star of House of the Dragon's opening episodes is surely Milly Alcock as Rhaenyra. She's got an enchantingly expressive face – a simple squinting of the eyes or a pursing of the lips can betray the range of emotions that accompany king's court politics." For the role, Alcock received a nomination for Critics' Choice Television Award for Best Supporting Actress in a Drama Series. She made her West End stage debut in The Crucible at the Gielgud Theatre in June.

In 2025, she starred alongside Julianne Moore and Meghann Fahy in the Netflix dark comedy limited series Sirens.

In January 2024, it was announced that Alcock had been cast to play Kara Zor-El / Supergirl in the DC Universe film Supergirl, first making an uncredited appearance as the character in Superman (2025). Supergirl released on 26 June 2026, opening to mixed reviews and underperformed at the box-office; however, Alcock was praised for her performance. Alcock will reprise her role in the upcoming film Man of Tomorrow.

Personal life Prior to being cast in House of the Dragon, Alcock lived with her family in Sydney and took on side jobs. Harper's Bazaar Australia reported that she worked part time at a cafe in Sydney's Marrickville until filming began. In 2022, she relocated to London. In 2026, Alcock revealed that she had been diagnosed with attention deficit hyperactivity disorder.

Filmography

Film

Television Year Title Role Notes 2014 Wonderland Teen Girl 1 Episode: "Narcissism" 2015–2016 B.F. Chefs Herself Presenter 2017 Hanging With Herself Presenter Janet King Cindi Jackson Recurring role (series 3) 2018 A Place to Call Home Emma Carvolth Recurring role (series 6) Fighting Season Maya Nordenfelt Recurring role Pine Gap Marissa Campbell Limited-run series, main cast 2019 Les Norton Sian Galese Recurring role 2019–2022 Upright Meg Adams Main cast 2020 The Gloaming Jenny McGinty Recurring role Reckoning Sam Serrato Recurring role 2022–2024 House of the Dragon Young Princess Rhaenyra Targaryen Main cast (season 1)Guest cast (season 2); 7 episodes 2025 Sirens Simone DeWitt Miniseries, main cast

Web Year Title Role Notes 2017 High Life Isabella Barrett AACTA Awards Best Comedy Performer Upright IGN Summer Movie Awards Best Performance in a TV SeriesHouse of the Dragon Critics' Choice Television Awards Best Supporting Actress in a Drama Series Critics' Choice Super Awards Best Actress in a Science Fiction/Fantasy Series Logie Awards Most Outstanding Actress Upright Saturn Awards Best Performance by a Younger Actor on a TV Series House of the Dragon Critics' Choice Super AwardsBest Actress in a Superhero MovieSupergirl