Margaret Constance "Maisie" Williams is an English actress. Williams made her acting debut in 2011 as Arya Stark, a lead character in the HBO epic medieval fantasy television series Game of Thrones (2011–2019). She gained recognition and critical praise for her work on the show, and received two Emmy Award nominations. Williams' other television appearances include guest starring as Ashildr in the BBC science fiction series Doctor Who (2015), she has also starred in the British docudrama television film Cyberbully (2015), and in the British science-fiction teen thriller film iBoy (2017). She played Kim Noakes, the central character in comedy action drama series Two Weeks to Live (2020), and portrayed punk rock icon Jordan in Pistol (2022) a biopic about the Sex Pistols. Williams has also voiced Cammie MacCloud in the American animated web series Gen:Lock (2019–present).