Karl Diedrich Bader (born December 24, 1966) is an American actor, voice actor, and comedian. He has appeared as a series regular in television sitcoms The Drew Carey Show, American Housewife, and Outsourced, along with notable recurring roles in Better Things and Veep. His film credits include The Beverly Hillbillies, Office Space, EuroTrip and Napoleon Dynamite. He is also a voice actor for multiple animated series; some of his roles include Batman on Batman: The Brave and the Bold, JLA Adventures: Trapped in Time, Bojack Horseman and Harley Quinn. His other voice roles include the android Zeta in The Zeta Project, Warp Darkmatter in Buzz Lightyear of Star Command, the Fiskerton Phantom in The Secret Saturdays, and his recurring role as Hoss Delgado in The Grim Adventures of Billy and Mandy.
Karl Diedrich Bader was born in Alexandria, Virginia, on Christmas Eve, 1966, the son of Gretta Bader (née Margaret Marie Lange; 1931–2014), a sculptor, and William B. Bader (1931–2016), a foundation executive and political activist. His patrilineal great-grandfather was Edward Lawrence Bader, who was mayor of Atlantic City, New Jersey.