| Year | Title | Role | Notes |
| 1989 | Anything but Love | Trell | Episode: "Woman on the Verge of a Nervous Breakdown" |
| 1990 | Sydney | The Waiter | Episode: "Sydney's Mom" |
| 1991 | Earth Angel | Brownnoser | Television film |
| 1992–1995 | The Ben Stiller Show | Various characters | 13 episodes |
| 1993 | Flying Blind | Film Student | Episode: "The Bride of Marsh Man 2: The Spawning" |
| 1993 | The Building | Joe | 2 episodes |
| 1994 | The Nanny | Pepé, Bernie | Episode: "Maggie the Model" |
| 1995 | Get Smart | Zach Smart | 7 episodes |
| 1995–1999 | NewsRadio | Matthew Brock | 97 episodes |
| 1997 | Johnny Bravo | Melon Head, Surfer Dude | Voice, episode: "Beach Blanket Bravo" |
| 1997 | Space Ghost Coast to Coast | Himself | Episode: "Boatshow" |
| 1998 | Star Trek: Voyager | EMH-2 Dr. Bradley | Episode: "Message in a Bottle" |
| 1999 | Just Shoot Me! | Kyle | Episode: "Finch Gets Dick" |
| 2000 | Dilbert | The Assistant | Voice, episode: "The Assistant" |
| 2000 | King of the Hill | Griffin | Voice, episode: "Movin' on Up" |
| 2000 | Caitlin's Way | William | 2 episodes |
| 2000 | Hey Arnold! | Monkeyman | Voice, episode: "Monkeyman!" |
| 2000 | Batman Beyond | Slim | Voice, episode: "The Eggbaby" |
| 2000 | Sammy | Mark Jacobs | Voice |
| 2000 | Special Delivery | Lloyd Steadman | Television film |
| 2001 | Go Fish | Ernie Hopkins | 5 episodes |
| 2001–2002 | The Andy Dick Show | Various characters | 21 episodes; also writer and executive producer |
| 2002, 2008 | Family Guy | Himself | Episodes: "Road to Europe" and "Tales of a Third Grade Nothing" |
| 2002–2003 | Clone High | Mr. Sheepman | Voice, 6 episodes |
| 2002–2006 | Less Than Perfect | Owen Kronsky | 81 episodes |
| 2004 | Stripperella | Larry Talbot / Werebeaver | Voice, episode: "The Curse of the WereBeaver" |
| 2004 | The Assistant | Presenter | Also executive producer |
| 2005 | The Comedy Central Roast of Pamela Anderson | Himself | Television special |
| 2006 | Arrested Development | Himself | Episode: "S.O.B.s" |
| 2006 | The Comedy Central Roast of William Shatner | Himself | Television special |
| 2007 | The Simpsons | Himself | Episode: "Yokel Chords" |
| 2007 | Jimmy Kimmel Live! | Himself | Season 5, Episode 20 |
| 2007 | ER | Tommy Brewer | Episode: "Crisis of Conscience" |
| 2008 | Rick & Steve: The Happiest Gay Couple in All the World | Protestor | Voice, episode: "Death of a Lesbian Bed" |
| 2009 | Head Case | Himself | Episode: "Tying the Not" |
| 2010 | CSI: Crime Scene Investigation | Armory Dealer | Episode: "Blood Moon" |
| 2010, 2011 | Community | Tiny Man, Helicopter Pilot | 2 episodes |
| 2010, 2012 | Mary Shelley's Frankenhole | Jesus Christ | Voice, 2 episodes |
| 2012 | Randy Cunningham: 9th Grade Ninja | Jerry Driscoll | Voice, episode: "Dawn of the Driscoll" |
| 2013 | Legit | Andy | Episode: "Health" |
| 2013 | Bad Samaritans | Floyd | Episode: "Middle School Detention" |
| 2013, 2016 | 2 Broke Girls | J. Petto | 3 episodes |
| 2014 | Sharknado 2: The Second One | Officer Doyle | Television film |
| 2015 | Maron | Himself | Episode: "Marc's Niece" |
| 2015 | Comedy Bang! Bang! | Andy Battlecorridor | Episode: "David Krumholtz Wears a Blue Zip-Up Jacket and Grey Sneakers" |
| 2016 | Workaholics | Mr. Buckley | Episode: "Meth Head Actor" |
| 2016 | Great Minds with Dan Harmon | John Wilkes Booth | Episode: "John Wilkes Booth" |
| 2016 | The Lion Guard | Nuka | Voice, episode: "Lions of the Outlands" |
| 2016–2017 | Love | Himself | 2 episodes |
