Born in South Kensington, London, she made her film debut at the age of 13 in the lead role of Lyra Belacqua in "The Golden Compass" (2007). Her performance in the fantasy adventure film garnered attention and paved the way for further roles in television and film. She later appeared in the TV series "Skins" and "Endeavour." Known for her versatility and depth, she continues to develop her career with a focus on both screen and stage performances.