Kieran Kyle Culkin (born September 30, 1982) is an American film, television, and theatre actor. Brother of actors Macaulay and Rory, he began his career as a child actor in the 1990s. He achieved a breakthrough by starring in the film Igby Goes Down (2002), for which he was nominated for his first Golden Globe Award, as well as winning a Critics' Choice Movie Award and a Satellite Award. Another notable film role of his is Wallace Wells in Scott Pilgrim vs The World (2010). From 2018 to 2023, his portrayal of the immature and troubled Roman Roy in HBO tragicomedy Succession secured him 3 Golden Globe Awards nominations and a win, as well as 2 Primetime Emmy nominations and a win.