Milly Alcock

About

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), for which she was nominated for a Critics’ Choice Award.
Alcock portrays Kara Zor-El / Supergirl in the DC Universe, first making an uncredited appearance in Superman (2025). She reprised the role starring in Supergirl (2026).

Amelia May Alcock was born on 11 April 2000 and raised in the Sydney suburb of Petersham. She has two younger brothers. Alcock was introduced to acting upon playing Little Red Riding Hood in Taverners Hill Infants School’s version of Little Red Rocking Hood. She attended the local Stanmore Public School and then Newtown High School of the Performing Arts, from where she dropped out in 2018 when she was cast in Upright.

Alcock made her television debut as a teenager in a 2014 episode of the Network Ten romantic comedy Wonderland. She appeared in commercials for NBN, Cadbury, KFC, and Woolworths. She starred on Disney Channel in Australia…