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).

Filmography

• 2027Man of Tomorrow — Supergirl
• 2026Supergirl — Supergirl
• 2025Based Amy — Executive Producer
• Sirens — Simone DeWitt
• 2025Superman — Supergirl (uncredited)
• House of the Dragon — Young Rhaenyra Targaryen
• 2020Furlough — Ella
• 2020The Familiars — Alison
• The Gloaming — Jenny McGinty
• Les Norton — Sian Galese
• Reckoning — Sam Serrato
• Upright — Meg Adams
• Fighting Season — Maya Nordenfelt
• Pine Gap — Marissa Campbell
• 2018The School — Jien
• High Life — Isabella Barrett
• Janet King — Cindi Jackson
• A Place to Call Home — Emma Carvolth
• Wonderland — Teen Girl 1
• Hot Mother
• Thumb
• Untitled Kyoto Project — Ella

Appearances as themselves (5)

• 2026The Making of Supergirl — Self
• DC Studios Showcase: The Official Podcast — Self
• House of the Dragon: The House That Dragons Built — Self
• Last Meals — Self
• The Tonight Show Starring Jimmy Fallon — Self - Guest