Milly Alcock

Biography

Amelia Alcock (born 11 April 2000), known professionally as Milly Alcock, 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), for which she was nominated for a Critics' Choice Television Award for Best Supporting Actress in a Drama Series.

In 2026, Alcock played Kara Zor-El, aka Supergirl, in James Gunn's DCU, starting with Supergirl (2026), following an uncredited cameo in Superman (2025).

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