Sebastian Theodore Kemble Croft (born 16 December 2001) is an English actor. He began his career as a child actor on stage before making his television debut as Young Ned Stark in Game of Thrones (2016). He earned a BAFTA Children's Award nomination for his role in Horrible Histories: The Movie – Rotten Romans (2019). He has since starred in the Netflix series Heartstopper (2022–2023).
Croft's voice work includes the film Where Is Anne Frank (2021), "Ice", an instalment of the Netflix anthology Love, Death & Robots (2021) and voice option one for the player character in the game Hogwarts Legacy.
Source : Wikipedia