Milly Alcock

Milly Alcock

Known for

Acting

Born

April 11, 2000 (age 26)

Birthplace

Sydney, New South Wales, Australia

Biography

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). Alcock is best known for portraying Kara Zor-El / Supergirl in the DC Universe, first making an uncredited appearance in Superman (2025). She reprised the role starring in Supergirl (2026).

Best known work

House of the Dragon
House of the Dragon
2022
Superman
Superman
2025
Supergirl
Supergirl
2026
The Tonight Show Starring Jimmy Fallon
The Tonight Show Starring Jimmy Fallon
2014
Sirens
Sirens
2025
Upright
Upright
2019
Pine Gap
Pine Gap
2018
Reckoning
Reckoning
2019
The Gloaming
The Gloaming
2020
A Place to Call Home
A Place to Call Home
2013

Filmography

  1. TBA

    Thumb

  2. TBA

    Hot Mother

  3. TBA

    Untitled Kyoto Project

    as Ella

  4. 2027

    Man of Tomorrow

    as Supergirl

  5. 2026

    The Making of Supergirl

    as Herself

  6. 2026

    Supergirl

    as Supergirl

  7. 2025

    Based Amy

    Executive Producer

  8. 2025

    Superman

    as Supergirl (uncredited)

  9. 2025

    SirensTV

    as Simone DeWitt (5 episodes)

  10. 2024

    DC Studios Showcase: The Official PodcastTV

    as Self (1 episode)

  11. 2024

    House of the Dragon: The House That Dragons BuiltTV

    as Self (8 episodes)

  12. 2022

    House of the DragonTV

    as Young Rhaenyra Targaryen (7 episodes)

  13. 2021

    Last MealsTV

    as Self (1 episode)

  14. 2020

    Furlough

    as Ella

  15. 2020

    The Familiars

    as Alison

  16. 2020

    The GloamingTV

    as Jenny McGinty (7 episodes)

  17. 2019

    UprightTV

    as Meg Adams (16 episodes)

  18. 2019

    ReckoningTV

    as Sam Serrato (10 episodes)

  19. 2019

    Les NortonTV

    as Sian Galese (4 episodes)

  20. 2018

    Fighting SeasonTV

    as Maya Nordenfelt (6 episodes)

  21. 2018

    Pine GapTV

    as Marissa Campbell (5 episodes)

  22. 2018

    The School

    as Jien

  23. 2017

    High LifeTV

    as Isabella Barrett (6 episodes)

  24. 2014

    Janet KingTV

    as Cindi Jackson (3 episodes)

  25. 2014

    The Tonight Show Starring Jimmy FallonTV

    as Self - Guest (2 episodes)

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