| Tahun |
Judul |
Peran |
Catatan |
| 1982 |
For Lovers Only |
Video Game Fanatic |
Film TV
Tidak dikreditkan |
| 1983 |
The Day After |
Man in hospital |
Film TV |
| 1984 |
The Burning Bed |
Juror |
TV film
Uncredited |
| 1985 |
Assaulted Nuts |
Various |
Peran utama (seven episodes) |
| 1988 |
Tattingers |
Kenny Axelrod |
2 episodes |
| 1990 |
Mathnet |
Peter Pickwick |
Episode: "The Case of the Parking Meter Massacre" |
| 1990 |
Square One TV |
Peter Pickwick |
3 episodes |
| 1992–1998 |
Seinfeld |
Newman |
Peran berulang
Nominasi—Q Award for Best Recurring Player (1998) |
| 1992 |
Double Edge |
Tommy White |
Film TV |
| 1992–1993 |
The Edge |
Various Characters |
Peran utama |
| 1992 |
T Bone N Weasel |
Roy Kramp |
Film TV |
| 1993 |
Fallen Angels |
Leo Cunningham |
Episode: "Dead End Delia" |
| 1993 |
Against the Grain |
Froggy Wilson |
Episode: "Pilot" |
| 1993–1994 |
The Second Half |
Robert Piccolo |
Peran utama |
| 1994 |
Golden Gate |
Arthur Genopopoulos |
Film TV |
| 1996–2001 |
3rd Rock from the Sun |
Don Orville |
Peran utama
Nominasi—Screen Actors Guild Award for Outstanding Performance by an Ensemble in a Comedy Series (1998–1999) |
| 1997 |
Contempt of Court |
Merill Bushman |
Film TV |
| 1998 |
Hercules |
Cyclops Head #2 (suara) |
2 episodes |
| 1998 |
Toonsylvania |
Igor (suara) |
Peran utama |
| 2000 |
Dilbert |
The Security Guard (suara) |
Episode: "The Security Guard" |
| 2000–2001 |
Buzz Lightyear of Star Command |
Emperor Zurg (suara) |
Peran utama |
| 2001 |
That '70s Show |
The Angel |
Episode: "It's a Wonderful Life" |
| 2001 |
Bleacher Bums |
Zig |
Film TV |
| 2002 |
Becker |
Wally |
Episode: "Picture Imperfect" |
| 2002 |
Master Spy: The Robert Hanssen Story |
Walter Ballou |
Film TV |
| 2003 |
The Twilight Zone |
Nick Dark |
Episode: "How Much Do You Love Your Kid?" |
| 2003–2006 |
Xiaolin Showdown |
Dojo (suara) |
Pemeran utama |
| 2003 |
Gary the Rat |
Gary's Rival (suara) |
Episode: "The Reunion" |
| 2003 |
The Grim Adventures of Billy & Mandy |
Jack O'Lantern (suara) |
Episode: "Billy & Mandy's Jacked-Up Halloween" |
| 2004 |
I'm with Her |
Kevin |
Episode: "Friends in Low Places" |
| 2004 |
The Drew Carey Show |
Owen |
Episode: "Liar Liar House on Fire" |
| 2004 |
Listen Up! |
Buddy |
Episode: "Sweet Charity" |
| 2005–2007 |
Catscratch |
Mr. Blik (suara) |
Peran utama |
| 2005 |
Justice League Unlimited |
Abnegazar (voice) |
Episode: "The Balance" |
| 2006 |
CSI: NY |
Truman Bosch |
Episode: "Fare Game" |
| 2006 |
Brandy & Mr. Whiskers |
Mr. Cantarius (suara) |
Episode: "You've Got Snail" |
| 2006 |
How I Met Your Mother |
Lily's Landlord (suara, tidak dikreditkan) |
Episode: "How Lily Stole Christmas" |
| 2007 |
Tak and the Power of Juju |
Bug Juju (suara) |
Episode: "Our Favorite Juju" |
| 2009–2012 |
The Penguins of Madagascar |
Max (suara) |
3 episodes |
| 2009 |
Woke Up Dead |
Andrew Batten |
Peran utama |
| 2009 |
CSI: Crime Scene Investigation |
Mr. Terrence Lombard |
Episode: "Working Stiffs" |
| 2009 |
Nip/Tuck |
Don Hoberman |
Episode: "Don Hoberman" |
| 2009–2011 |
The Super Hero Squad Show |
Elihas Starr / Egghead (suara) |
3 episodes |
| 2009 |
Curb Your Enthusiasm |
Himself |
Tidak dikreditkan
Episode: "The Table Read" |
| 2010–2011 |
Hot in Cleveland |
Rick |
Peran berulang |
| 2010 |
The Good Guys |
Perry Black |
Episode: "Little Things" |
| 2010 |
The Whole Truth |
Judge Mark Hulverson |
Episode: "Uncanny" |
| 2010 |
Bones |
Jimmy Walpert III |
Episode: "The Babe in the Bar" |
| 2011 |
Torchwood |
Brian Friedkin |
3 episodes |
| 2011–2012 |
Kung Fu Panda: Legends of Awesomeness |
Jong / Jong's Son (suara) |
2 episodes |
| 2011–2015 |
The Exes |
Haskell Lutz |
Peran utama |
| 2012 |
Green Lantern: The Animated Series |
Captain Goray (suara) |
Episode: "Into the Abyss" |
| 2012 |
Pound Puppies |
Ralphie / Construction Worker #1 (suara) |
Episode: "Good Dog, McLeish!" |
| 2013 |
Regular Show |
Guardian of the Friend Zone / God of Street Performing (suara) |
2 episodes |
| 2013 |
American Dad! |
Overweight Customer Whose Pants Are Caught on Fire (suara, tidak dikreditkan) |
Episode: "Naked to the Limit, One More Time" |
| 2014 |
Comedians in Cars Getting Coffee |
Newman |
Episode: "The Over-Cheer" |
| 2014 |
Unforgettable |
Dr. Theodore Blumer |
Episode: "East of Islip" |
| 2015 |
Sirens |
Richard |
Episode: "Sub-Primal Fears" |
| 2015 |
TripTank |
Greg / Customer (suara) |
2 episodes |
| 2015 |
Doc McStuffins |
Viewy Stewie (suara) |
Episode: "Fully Focused" |
| 2016 |
Home: Adventures with Tip & Oh |
Boovius (suara) |
Episode: "The Gray Matter" |
| 2016 |
StartUp |
Benny Blush |
3 episodes |
| 2017 |
Still the King |
Dan |
Episode: "Still Still the King" |
| 2017 |
Narcos |
Alan Starkman |
2 episodes |
| 2017 |
The Young and the Restless |
Irv |
2 episodes |
| 2017 |
Stretch Armstrong and the Flex Fighters |
Brick (suara) |
2 episodes |
| 2018 |
Law & Order: Special Victims Unit |
Grigor |
Episode: "Service" |
| 2018 |
Legend of the Three Caballeros |
Baron Von Sheldgoose (suara) |
Peran utama |
| 2018 |
The Truth About the Harry Quebert Affair |
Benjamin Roth |
Peran utama |
| 2019–20 |
Harley Quinn |
Penguin (suara) |
2 episodes |
| 2019 |
Robot Chicken |
Nutsy Goldberg (suara) |
Episode: "Robot Chicken's Santa's Dead (Spoiler Alert) Holiday Murder Thing Special" |
| 2020 |
Infinity Train |
Marcel (suara) |
Episode: "The Map Car" |
