Milly Alcock

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).

Career Overview

Milly Alcock has 19 screen credits in a career dating back to 2010. Their work spans 2 cinematic universes — most prominently Superman (DCU) Collection with 2 titles. Signature works include Supergirl, Sirens, Upright. Explore the interactive character relationship maps on each title page to trace how their roles connect across franchises.

Personal Facts

Known For

Acting

Gender

female

Known Credits

19

Birth Date

2000-04-11 00:00:00

Birth Place

Sydney, New South Wales, Australia

Known For

• 

  Supergirl
• 

  Sirens
• 

  Upright
• Thumb
• 

  The Making of Supergirl
• 

  Furlough

Associated Universes

Universe traveler — spans 2 universes

• Superman (DCU) Collection (2 titles)
• DCEU (1 titles)

Frequent Collaborators

• Eve Ridley (1 collaborations)
• Matthias Schoenaerts (1 collaborations)
• Jason Momoa (1 collaborations)
• David Krumholtz (1 collaborations)
• Emily Beecham (1 collaborations)
• Ferdinand Kingsley (1 collaborations)
• Kadiff Kirwan (1 collaborations)
• Diarmaid Murtagh (1 collaborations)
• Wil Coban (1 collaborations)
• David Corenswet (1 collaborations)

Credits

• actors (18 credits)

  • Man of Tomorrow

    Supergirl

    actor

    actors
    2027
  • Untitled Kyoto Project

    Ella

    actor

    actors
    2026
  • Thumb

    actor

    actors
    2026
  • The Making of Supergirl

    Herself

    actor

    actors
    2026
  • Hot Mother

    actor

    actors
    2026
  • Supergirl

    Supergirl

    actor

    actors
    2026
  • Under eyes

    Sarah

    actor

    actors
    2026
  • Based Amy

    actor

    actors
    2025
  • Superman

    Supergirl (uncredited)

    actor

    actors
    2025
  • Sirens

    Simone DeWitt

    actor

    actors

    - Siren Song (2025) ... Simone DeWitt actor actors

    - Persephone (2025) ... Simone DeWitt actor actors

    - Monster (2025) ... Simone DeWitt actor actors

    - Talons (2025) ... Simone DeWitt actor actors

    - Exile (2025) ... Simone DeWitt actor actors
    2025
  • House of the Dragon

    - The Red Dragon and the Gold (2024) ... Young Rhaenyra Targaryen actor actors

    - The Burning Mill (2024) ... Young Rhaenyra Targaryen actor actors

    - We Light the Way (2022) ... Young Rhaenyra Targaryen actor actors

    - King of the Narrow Sea (2022) ... Young Rhaenyra Targaryen actor actors

    - Second of His Name (2022) ... Young Rhaenyra Targaryen actor actors
    2022
  • Furlough

    Ella

    actor

    actors
    2020
  • The Familiars

    Alison

    actor

    actors
    2020
  • Upright

    Meg Adams

    actor

    actors

    - Enough's Enough (2022) ... Meg Adams actor actors

    - Harmless Untruths (2022) ... Meg Adams actor actors

    - Eskimo Jonestown (2022) ... Meg Adams actor actors

    - Fold (2022) ... Meg Adams actor actors

    - Reparations (2022) ... Meg Adams actor actors
    2019
  • The School

    Jien

    actor

    actors
    2018
  • The Tonight Show Starring Jimmy Fallon

    - Tracee Ellis Ross, Milly Alcock, Ryan Hamilton (2026) ... Self - Guest actor actors

    - Tom Cruise, Milly Alcock, Shakira (2025) ... Self - Guest actor actors
    2014
  • Wonderland

    - Narcissism (2014) ... Teen Girl 1 actor actors
    2013
  • Actresses Ryan has a crush on

    My supergirl

    actor

    actors
    2010

• production (1 credits)

  • Based Amy

    executive producer

    production
    2025