Diedrich Bader

After a few guest roles on popular television series such as The Fresh Prince of Bel-Air, Star Trek: The Next Generation, Quantum Leap, Diagnosis: Murder and Cheers, Bader's first major role was in the 1993 series Danger Theatre, playing The Searcher. He moved into cinema acting for the 1993 film version of The Beverly Hillbillies, and returned to television, playing Oswald on The Drew Carey Show starting in 1995. He appeared in the 1999 film Office Space as Peter's neighbor Lawrence, and in the 2004 film Napoleon Dynamite as Rex, the owner of a Taekwondo dojang. He performs in the 2004 film Eurotrip as a thief. In 2010, Bader took the role of Charlie on the television series Outsourced.

As a voice actor, he has voiced various characters in animated features, television series and video games, such as Ice Age, The Simpsons, Buzz Lightyear of Star Command, The Grim Adventures of Billy & Mandy, South Park and The Penguins of Madagascar. In 2012, he reprised his role as Rex in the animated TV series Napoleon Dynamite. He played the Russian Cosmonaut Yuri in Disney's Space Buddies. Bader has lent his voice to several different Batman cartoons, portraying both heroes and villains: Batman Beyond, The Zeta Project, The Batman, and starring as the title character Bruce Wayne / Batman in Batman: The Brave and the Bold and Harley Quinn. Bader also voices Guy Gardner in Green Lantern: The Animated Series.

His other voice credits include JLA Adventures: Trapped in Time, Judah Mannowdog in BoJack Horseman, the android Zeta in The Zeta Project, and the Fiskerton Phantom in The Secret Saturdays.

In 2016, Bader starred in the "It's the Obvious Choice" series of Time Warner Cable television commercials and starred as Greg Otto in ABC sitcom American Housewife from 2016 to 2021. From 2014 to 2019, Bader had a recurring role on HBO sitcom Veep. Since 2016, Bader has had a recurring role as best friend, Rich, on Better Things.