Kieran Kyle Culkin is an American actor. The brother of actors Macaulay and Rory Culkin, he began his career as a child actor in the films Father of the Bride (1991), The Mighty (1998), and The Cider House Rules (1999). He achieved a career breakthrough after 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. He later appeared in the films Scott Pilgrim vs. the World (2010), Wiener-Dog (2016), and No Sudden Move (2021). Since 2018, Culkin has starred as Roman Roy in the HBO television series Succession, for which he was nominated for a Primetime Emmy Award and two consecutive Golden Globe Awards.