William Thomas Hader Jr born June 7 1978 is an American actor comedian writer and producer He is the creator producer writer director and star of the HBO dark comedy series Barry 20182023 for which he has been nominated for eight Emmy Awards winning two Haders initial success was for his eightyear stint 20052013 as a cast member on the longrunning NBC variety series Saturday Night Live for which he received four Primetime Emmy Award nominations and a Peabody Award He became known for his impressions and especially for his work on the Weekend Update segments in which he played Stefon Meyers a flamboyant New York tour guide who recommends unusual nightclubs and parties with bizarre characters with unusual tastes He is also the star and producer of the IFC mockumentary comedy series Documentary Now 2015present which he cocreated along with Fred Armisen and Seth Meyers Hader has had supporting roles in the films You Me and Dupree 2006 Hot Rod 2007 Superbad 2007 Forgetting Sarah Marshall 2008 Night at the Museum Battle of the Smithsonian 2009 Paul 2011 This Is 40 2012 and 22 Jump Street 2014 as well as leading roles in The Skeleton Twins 2014 Trainwreck 2015 and as an adult Richie Tozier in It Chapter Two 2019 He also is known for his extensive work in voiceover portraying both leading and supporting characters in films such as the Cloudy with a Chance of Meatballs franchise 20092013 Turbo 2013 Inside Out 2015 The BFG 2016 Power Rangers 2017 Toy Story 4 2019 and Lightyear 2022