Gillian MacLaren Jacobs is an American actress and director. She is best known for playing Britta Perry in the NBC sitcom Community (2009–2015), Mimi-Rose Howard in the fourth season of the HBO comedy-drama series Girls (2015), Mickey Dobbs in the Netflix romantic comedy series Love (2016–2018), Mary Jayne Gold in the Netflix limited series Transatlantic (2023), and the voice of Atom Eve in the animated superhero series Invincible (2021–present). She has also appeared in films, such as Gardens of the Night (2008), Life Partners (2014), Don't Think Twice (2016), Ibiza (2018), I Used to Go Here (2020) and The Fear Street Trilogy (2021).