Milly Alcock
Birthdate: Apr 11, 2000
Birthplace: Sydney, Australia
Milly Alcock (birthname: Amelia May “Milly” Alcock) is best known for her role as Rhaenyra Targaryen in the HBO Game of Thrones spinoff series, House of the Dragon (2022-2024), but her theatrical feature debut was in the lead role of director/co-writer Storm Ashwood’s psychological horror movie, The School (2018), with Will McDonald and Nicholas Hope, and which was released by Vertical Entertainment.
Alcock landed the plum role of Supergirl/Kara Zor-El in DC Studios’ first Supergirl (2026) movie—though Alcock first appeared in an uncredited appearance as Supergirl in Superman (2025)—co-starring Eve Ridley, Matthias Schoenaerts, David Krumholtz, Emily Beecham, David Corenswet and Jason Momoa under Craig Gillespie’s direction, written by Ana Nogueira, produced by James Gunn and Peter Safran under the banner of DC Studios/The Safran Company/Troll Court Entertainment and released wide by Warner Bros. Pictures.
Alcock returned as Supergirl in director/writer/producer James Gunn’s Man of Tomorrow (2027), starring David Corenswet (as Superman), Nicholas Hoult, Rachel Brosnahan, Edi Gathegi, Nathan Fillion, Isabela Merced, Skyler Gisondo, Frank Grillo, Lars Eidinger and Aaron Pierce, produced (in part) by Peter Safran via DC Studios/The Safran Company/Troll Court Entertainment, and which was released wide by Warner Bros. Pictures.
Alcock topped the cast of her first U.S. production outside of the DC Universe in the black comedy, Thumb (date to be announced), co-starring Awkwafina, Kate McKinnon, Sofia Vergara, Stavros Halkias and Hannibal Buress under Daina Oniunas-Pusic’s direction, written by Cesar Vitale, and which was produced (in part) by Akiva Goldsman under the support of production companies Weed Road/Bluestone Entertainment.
Personal life
Milly Alcock was born and raised in the Sydney, Australia, suburb of Petersham, by her parents. Alcock has two younger brothers, Bert and Eddy. Alcock attended Taverners Hill Infant’s School, Stanmore Public School, and Newtown High School of the Performing Arts, from which she dropped out as her professional career took off. Alcock moved from Australia to London in 2022. Alcock’s height is 5’ 5”. Alcock’s estimated net worth is $2 million.
Known For
Upright
(2019)
House of the Dragon
(2022)
Furlough
(2020)
Milly Alcock Movies
actor
Upcoming (1)
Facts About Milly Alcock
Theater Life: Milly Alcock appeared as Abigail in the 2023 West End revival of Arthur Miller’s The Crucible, at the Gielgud Theatre.
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