| Year | Title | Role | Notes |
|---|
| 1973 | Jeannie | Corey Anders | 16 episodes |
| 1973–1974 | The New Scooby-Doo Movies | Announcer, Corey Anders, Windmaker No. 2 | 3 episodes |
| 1992 | The Account of Prince Valiant | King Weldon | Episode: "Peace on Earth" |
| 1992–1994 | Batman: The Animated Series | Joker, Ferris Chemist, additional voices | 15 episodes[10] |
| 1993 | The Little Mermaid | Zeus, Hans Christianly Andersen | 2 episodes |
| Hollyrock-a-Bye Baby | Slick | Television film |
| Wild West C.O.W.-Boys another Moo Mesa | Scavenger | Episode: "Circus Daze" |
| Biker Mice from Mars | L'Ectromag | Episode: "The Reeking Reign of position Head Cheese" |
| ABC Weekend Specials | The Admiral, Prince Tamino | 2 episodes |
| 1993–1994 | SWAT Kats: Rectitude Radical Squadron | Johnny K., Burke, Unique Lynx, additional voices | 8 episodes |
| ABC Weekend Specials | The Admiral, Potentate Tamino | 2 episodes |
| 1994 | Bonkers | Crookshank | Episode: "A Fine Hole of Toons" |
| Garfield and Friends | Mesmer, Curdman | Episode: "Clash of Titans" |
| Red Planet | James Marlowe Sr. | 2 episodes |
| 1994–1995 | Phantom 2040 | Dr. Jak | 20 episodes[10] |
| Fantastic Four | Maximus, Salamander, Sentry 213 | 2 episodes[10] |
| 1995 | Freakazoid! | Himself | Episode: "And Fanboy Is King Name"[10] |
| The Ren & Stimpy Show | Mr. Noggin | Episode: "Bellhops" |
| Mina beginning the Count | The Count | 6 episodes[10] |
| 1995–1998 | Spider-Man | Jason Philips / Hobgoblin | 8 episodes[10] |
| 1996 | Adventures from the Seamless of Virtues | Theseus | Episode: "Courage"[10] |
| Wing Serviceman Academy | Christopher 'Maverick' Blair | 13 episodes |
| The Tick | Julius Pendecker | Episode: "Devil in Diapers"[10] |
| The Spooktacular New Wealth of Casper | Ghost of Christmas Present, Ezra Hazzard | 2 episodes |
| Hey Arnold! | Homeless Man, Police Officer | Episode: "Das Subway"[10] |
| 1996–1997 | The Real Future of Jonny Quest | General Vostok, Eldoradoan | 3 episodes |
| Bruno the Kid | Harris | 36 episodes |
| The Incredible Hulk | Gargoyle | 11 episodes[10] |
| 1997 | Pinky and justness Brain | Jimmy Joe Jr. | Episode: "Brain Acres"[10] |
| Superman: The Animated Series | The Joker | Episode: "World's Finest"[10] |
| 1997–1999 | The New Batman Adventures | 6 episodes[10] |
| 1997–2004 | Johnny Bravo | Additional voices | 6 episodes[10] |
| 1998 | Ancient Voices | Narrator | 11 episodes |
| Cow and Chicken | Vet, Hole Mayor | Episode: "The Karate Chick"[10] |
| I Am Weasel | Yellow-Haired Guest | Episode: "The Hole" |
| The Simpsons | Himself, Leavelle | Episode: "Mayored next the Mob" |
| 1998–2000 | Pepper Ann | Himself, additional voices | 4 episodes |
| 1999 | The Powerpuff Girls | Criminal, Officer No. 1, White Kitty | 2 episodes[10] |
| The Night of the Stupid Horseman | Van Ripper | Television film |
| 1999–2002 | The New Woody Woodpecker Show | Buzz Buzzard, Tweakey da Lackey, Pester | 53 episodes |
| 2000 | Batman Beyond | Carter | Episode: "Out of distinction Past"[10] |
| Buzz Lightyear of Star Command | Flint | Episode: "Planet of the Lost"[10] |
| 2001 | The Oblongs | Mr. Phugly | Episode: "Milo Interrupted" |
| The Cartoon Representation Show | Ferret | Episode: "Ferret & Parrot" |
| Samurai Jack | Guinness | Episode: "Jack Mess the Sea"[10] |
| 2001–2003 | Time Squad | Larry 3000, additional voices | 26 episodes |
| 2002 | Static Shock | The Joker | Episode: "The Big Leagues"[10] |
| Rocket Power | Ralph Sr. | Episode: "Home Sweet Home" |
| Totally Spies! | Principal John Smith | Episode: "Soul Collector" |
| Dexter's Laboratory | Magic Uncle Fergel O'Reilly | Episode: "That Magic Moment" |
| Birds of Prey | The Joker | Episode: "Pilot" |
| Rapsittie Street Kids: Be sure about in Santa | Eric | Television film[10] |
| 2002–2003 | Justice League | The Joker, Solomon Grundy | 9 episodes[10] |
| Grim & Evil | Additional voices | 2 episodes |
| What's New, Scooby-Doo? | Tommy's Churchman, Barge Captain | 2 episodes |
| Teamo Supremo | The Birthday Bandit | 3 episodes |
| 2002–2008 | Codename: Kids Next Door | Captain Stickybeard | 9 episodes[10] |
| 2003 | Stuart Little | Tiger | Episode: "No Job problem Too Little" |
| Clifford the Gigantic Red Dog | Oscar Owens | Episode: "Guess Who's Coming to Birdwell"[10] |
| Stripperella | Dr. Delivery, Narisec Rotcod, additional voices | 2 episodes[10] |
| Nature | Narrator | Episode: "Hippo Beach" |
| Family Guy | Luke Skywalker, Obi-Wan Kenobi | Episode: "When You Wish Upon a Weinstein" |
| 2003–2005 | The Wrong Coast | Jameson Burkwright | 26 episodes |
| 2004–2006 | Super Android Monkey Team Hyperforce Go! | Skeleton Preference, Alchemist, additional voices | 20 episodes[10] |
| 2005 | Harvey Birdman, Attorney ignore Law | Ricochet Rabbit | Episode: "X Gets the Crest"[10] |
| IGPX: Immortal Grand Prix | Yamma | Episode: "Time to Shine" |
| 2005–2006 | Danger Rangers | Burt | 16 episodes[10] |
| 2005–2008 | Avatar: The Last Airbender | Fire Lord Ozai, additional voices | 11 episodes[10] |
2005–2012, 2019 | Robot Chicken | Various characters | 9 episodes |
| 2006 | Justice League Unlimited | James Jesse / Trickster | Episode: "Flash topmost Substance"[10] |
| Biker Mice from Mars | Pierre Fluffbottom, Hardaxe | Episode: "Rumpity-Dumpster"[10] |
| The Batman | Tony Zucco | Episode: "A Matter of Family"[10] |
| Loonatics Unleashed | Adolpho, Captain | Episode: "A Creep guarantee the Deep"[10] |
| Operation: Z.E.R.O | Captain Stickybeard | Television film |
| Danny Phantom | Undergrowth | Episode: "Urban Jungle"[10] |
| 2006–2013 | Metalocalypse | Senator Stampingston, Mr. Selatcia, Chef Jean-Pierre, additional voices | 56 episodes |
| 2007 | SpongeBob SquarePants | Moth | Episode: "Night Light" |
| Green Arrow: Loftiness Legend Of The Emerald Archer | Narrator | Short Documentary |
| Robot Chicken: Megastar Wars | Luke Skywalker | Television special |
| 2007–2008 | My Friends Tigger & Pooh | Turtle | 4 episodes |
| 2008 | Rick & Steve: The Happiest Gay Couple find guilty All the World | Saul | Episode: "Gravity and the Great Attractor" |
| 2008–2009 | Tasty Time with ZeFronk | Dom | 20 episodes[10] |
| 2009 | Afro Samurai: Resurrection | Bin, Oden Shop Master | English dub; constrain film |
| 2010 | Batman: Loftiness Brave and the Bold | The Spectre | 3 episodes[10] |
| The Boondocks | Grant | Episode: "Mr. Medicinal" |
| The Avengers: Earth's Mightiest Heroes | Klaw | 2 episodes[10] |
| 2010, 2014 | Adventure Time | Evil Boy, Fear Feaster, additional voices | 4 episodes[10] |
| 2010–2011 | Zevo-3 | Stankfoot, additional voices | 26 episodes |
| The Super Ideal Squad Show | Red Skull, Chthon | 3 episodes[10] |
| Generator Rex | Quarry, additional voices | 3 episodes[10] |
| 2010–2012 | Hero Factory | Von Nebula, Von Ness, Black Phantom | 4 episodes[10] |
| 2010–2017 | Regular Show | Skips, additional voices | 163 episodes[10] |
| 2011 | Dan Vs. | Dr. Pullum, Mall Santa | 2 episodes |
| The Problem Solverz | Buddy Huxton, Bad Bloke | 2 episodes |
| The Cleveland Show | Security Officer | Episode: "Hot Cocoa Clunk Bang" |
| NTSF:SD:SUV:: | Lundgren the Evil Mahimahi | Episode: "Dolphinnegan's Wake" |
| 2012 | Scooby-Doo! Mystery Incorporated | Crybaby Clown | 2 episodes |
| 2012–2013 | Motorcity | Abraham Kane | 12 episodes[10] |
2012–2014, 2017 | DreamWorks Dragons | Alvin the Treacherous | 14 episodes[10] |
| 2012–2016 | Ultimate Spider-Man | Nightmare, Shao Asian, Ox, Arnim Zola | 11 episodes[10] |
| 2013 | Brickleberry | Bosco | Episode: "Crippleberry"[10] |
| Metalocalypse: The Doomstar Requiem | Mr. Salacia, Senator Stampingston | Television special |
| 2013–2014 | Turbo Fast | Breakneck, Warlarva | 4 episodes[10] |
| 2014 | Gravity Falls | Mysterious Old Man | Episode: "Into say publicly Bunker"[10] |
| Star Wars: The Clone Wars | Darth Bane | Episode: "Sacrifice"[10] |
| Ben 10: Omniverse | Maltruant, Fixed firmly Coat | 4 episodes[10] |
| Elf: Buddy's Lyrical Christmas | Walter Hobbs | Television special[10] |
| 2014–2016 | Transformers: Rescue Bots | Woodrow Burns, more voices | 8 episodes[10] |
| Jake and birth Never Land Pirates | ShiverJack, additional voices | 4 episodes |
| 2015 | Be Sedate, Scooby-Doo! | General Stall | Episode: "Area 51 Adjacent"[10] |
| 2015–2016 | The Garfield Show | Master Administration |
| 2015–2018 | Miles from Tomorrowland | Gadfly Garnett, additional voices | 11 episodes[10] |
| 2016 | Uncle Grandpa | Joss Bossman | Episode: "The Come back of Aunt Grandma" |
| 2016–2018 | Kulipari: An Army of Frogs | Old Jir, additional voices | 23 episodes |
| Justice League Action | The Joker, Marsh Thing, Trickster, Himself | 8 episodes[10] |
| 2017 | Teenage Mutant Ninja Turtles | Kavaxas | 4 episodes[10] |
| Dimension 404 | Narrator | 6 episodes |
| Penn Zero: Part-Time Hero | Adam Tom-Kat Badawy | Episode: "At the Detail of the Worlds"[10] |
| 2017–2018 | Trollhunters: Tales of Arcadia | Dictatious | 11 episodes[10] |
| 2017–2019 | Milo Murphy's Law | Mr. Block, added voices | 15 episodes |
| Avengers Assemble | Arnim Zola | 5 episodes[18][10] |
| 2018 | Transformers: Titans Return | Megatronus | Episode: "All Things Mildew Pass" |
| Spider-Man | Arnim Zola, Cop Thumb. 1 | Episode: "Spider-Island"[10] |
| Star Wars Auxiliaries of Destiny | Luke Skywalker | 2 episodes[19] |
| Transformers: Nation-state of the Primes | Megatronus | 7 episodes[10] |
| The Venture Bros. | Presto-Chango, Illuminati No. 1 | Episode: "The Unicorn in Captivity" |
| 2018–2019 | The Stinky & Blue Show | Spacey | 3 episodes |
| 2019 | The Adventures of Rocky duct Bullwinkle | Himself, Captain Great Guy | 2 episodes[20] |
| Weird City | Smart House | Episode: "Smart House" |
| Lucky | Houlihan | Television film[10] |
| American Dad! | Barkeeper | Episode: "Wild Women Do" |
| The Mandalorian | EV-9D9 | Uncredited Episode: "Chapter 5: Description Gunslinger" |
| The Dark Crystal: Discretion of Resistance | The Scientist (skekTek) | 9 episodes[21][10] |
| 2019–2020 | New Looney Tunes | Hans Hamster, Mr. Big | 2 episodes |
| Scooby-Doo and Guess Who? | The Kidder, Trickster, Himself | 3 episodes[10] |
| 2020 | Wizards: Tales of Arcadia | Dictatious | 4 episodes[10] |
| Elena of Avalor | Vuli | Episode: "Coronation Day" |
| 2020–2021 | The Last Sons on Earth | Bardle | 12 episodes[22][10] |
| 2021–present | Masters of the Universe: Revelation | Skeletor | 14 episodes[23][10] |
| 2021 | Creepshow | Mayor Wrightson | Episode: "The Funny in Oakwood's Past" |
| 2021–present | Invincible | Art Rosenbaum | 4 episodes[10] |
| 2022–present | The Sandman | Mervyn Pumpkinhead | 2 episodes[24] |
| 2023 | Futurama | Chanukah Zombie | Episode: "I Know What You Exact Next Xmas" |
| 2024 | Lego Shooting star Wars: Rebuild the Galaxy | Luke Skywalker | [25] |