William Thomas \"Bill\" Hader (born June 7, 1978) is an American actor, comedian, writer, and voice actor. He is known for his work as a cast member on Saturday Night Live (2005–2013), for which he has received three Emmy nominations, South Park (2009–present), and his parody series Documentary Now! (2015–present).
Hader is also known for his supporting work in comedy films, such as You, Me and Dupree (2005), Superbad (2007), Forgetting Sarah Marshall (2008), Tropic Thunder (2008), Night at the Museum: Battle of the Smithsonian (2009), Paul (2011), and Men in Black 3 (2012). He has also had lead voice roles in Cloudy with a Chance of Meatballs (2009) and Inside Out (2015), as well as lead roles in the dramedy The Skeleton Twins (2014) and the romantic comedy Trainwreck (2015)