William Emerson Arnett (/ɑːrˈnɛt/; born May 4, 1970) is a Canadian-American actor, comedian and producer. He is best known for his role as George Oscar "Gob" Bluth II in the Fox/Netflix series Arrested Development (2003–2006, 2013–present). He has appeared in films such as Blades of Glory (2007), Hot Rod (2007) and Teenage Mutant Ninja Turtles (2014). He is a prolific voice actor with film roles including Ratatouille (2007), Monsters vs. Aliens (2009), Despicable Me (2010), The Nut Job (2014) and Batman in the Lego Movie franchise. He also voices the titular character in the Netflix series BoJack Horseman (2014–present).