Ellie is a fictional character in the 2013 video game The Last of Us, and the protagonist of the upcoming video game The Last of Us Part II. In the first game, the character Joel is tasked with escorting Ellie across a post-apocalyptic United States in an attempt to create a potential cure for an infection to which Ellie is immune. She is voiced by Ashley Johnson, who also provided motion capture for the character. While players briefly assume control of Ellie for a portion of the game, the computer's artificial intelligence primarily controls her actions, often assisting in combat by attacking or identifying enemies.