William Emerson "Will" Arnett (born May 4, 1970) is a Canadian actor who played Vernon Fenwick in the 2014 film reboot and the 2016 sequel. He is best known for his comedic roles as George Oscar "G.O.B." Bluth II in the Fox show Arrested Development, Devon Banks in the NBC show 30 Rock, Chris Brinkley in the NBC television series Up All Night, and was the voice of the titular character in BoJack Horseman. He played supporting roles in the mini-series The Increasingly Poor Decisions of Todd Margaret and films such as Semi-Pro, Blades of Glory, RV, Hot Rod, Let's Go to Prison and The Brothers Solomon.
His voice acting credits in feature films include The Lego Movie franchise, Monsters vs. Aliens, Teen Titans Go! to the Movies, Despicable Me, Dr. Seuss' Horton Hears a Who, The Nut Job, Ratatouille, The Secret World of Arrietty, Ice Age: The Meltdown, Chip 'n Dale: Rescue Rangers and Rumble.