Mackenzie Christine Foy is an American actress and model. She is known for appearing as Renesmee Cullen in the 2012 film The Twilight Saga: Breaking Dawn – Part 2, which earned her a Young Artist Award nomination as Best Supporting Young Actress in a Feature Film, and for her role as the young Murphy in the 2014 space epic Interstellar, for which she received critical acclaim, a Saturn Award for Best Performance by a Younger Actor, and several other awards nominations. She also voiced Violet Alden in The Boxcar Children and the Little Girl in The Little Prince.
For Disney, she portrayed Clara Stahlbaum in the 2018 film The Nutcracker and the Four Realms and Jo Green in the 2020 film Black Beauty.