Milly Alcock
Acting
Born: 2000-04-11 in 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).
Known For
House of the Dragon
Young Rhaenyra Targaryen
Superman
Supergirl (uncredited)
Supergirl
Supergirl
The Tonight Show Starring Jimmy Fallon
Self - Guest
Sirens
Simone DeWitt
Upright
Meg Adams
Pine Gap
Marissa Campbell
Reckoning
Sam Serrato
The Gloaming
Jenny McGinty
A Place to Call Home
Emma Carvolth
The School
Jien
Janet King
Cindi Jackson
Wonderland
Teen Girl 1
Les Norton
Sian Galese
The Familiars
Alison
Fighting Season
Maya Nordenfelt
House of the Dragon: The House That Dragons Built
Self
Last Meals
Self
High Life
Isabella Barrett
DC Studios Showcase: The Official Podcast
Self
Furlough
Ella
Based Amy
Thumb
Hot Mother
Man of Tomorrow
Supergirl
The Making of Supergirl
Self