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