Mark Justin Roiland (born February 21, 1980) is an American voice actor, animator, writer, producer, and director. He is best known as the co-creator of Adult Swim's animated sitcom Rick and Morty, for which he voiced the protagonists Rick Sanchez and Morty Smith, and as the co-creator of Hulu's Solar Opposites, in which he voiced the main character Korvo, until both networks severed ties with him in 2023. He has also played Earl of Lemongrab on Adventure Time and Blendin Blandin on Gravity Falls. He founded the animation studio Justin Roiland's Solo Vanity Card Productions! and the video game studio Squanch Games. Description above from the Wikipedia article Justin Roiland, licensed under CC-BY-SA, full list of contributors on Wikipedia.
| Series | The Paloni Family Comedy Show! | Leroy Peloni / Marty Paloni / Grandpa Joe Paloni (voice) | 2026 |
| Series | Koala Man | Chad Wagon (voice) | 2023-01-09 |
| Movie | King Star King | Hank Waffles | 2023-02-13 |
| Series | The Boys Presents: Diabolical | Papers / Narrator’s Dad / Picante’s Dad (voice) | 2022-03-03 |
| Movie | The Paloni Show! Halloween Special! | Leroy Peloni (voice) | 2022-10-16 |
| Series | INVINCIBLE | Doug Cheston / Punk Kid (voice) | 2021-03-25 |
| Movie | Space Jam: A New Legacy | Rick Sanchez / Morty Smith (voice) | 2021-07-08 |
| Movie | A Very Merry Rickmas Yule Log | Unknown | 2021-12-15 |
| Series | Solar Opposites | Korvo (voice) | 2020-05-08 |
| Movie | Invader Zim: Enter the Florpus | Foodio 3000 / Weird Alien #1 / Excited Audience Member (voice) | 2019-08-16 |
| Series | All Elite Wrestling: Dynamite | Rick Sanchez (voice) / Morty Smith (voice) | 2019-10-02 |
| Series | Hot Streets | Chubbie Webbers (voice) | 2018-01-14 |
| Movie | Seth Rogen's Hilarity for Charity | Char (voice) | 2018-04-06 |
| Movie | Smallfoot | Garry (voice) | 2018-09-20 |
| Series | Blark and Son | Junior (voice) | 2018-06-03 |
| Movie | Accounting Plus Out Now! (Director's Cut) | Harold Jenkins | 2018-10-18 |
| Series | Mystery Science Theater 3000 | Gizmonic Institute Emergency Announcer (voice) | 2017-04-14 |
| Movie | Rick and Morty Exquisite Corpse | Rick Sanchez / Morty Smith | 2017-07-16 |
| Series | Future-Worm! | Professor Gigglesnorp (voice) / General Couponocus (voice) | 2016-01-08 |
| Series | Animals. | H&M (voice) | 2016-02-05 |
| Movie | Rick and Morty: State of Georgia Vs. Denver Fenton Allen | Judge Morty / Denver Felton Allen | 2016-07-24 |
| Series | Star vs. the Forces of Evil | Doop-Doop (voice) | 2015-01-18 |
| Series | Pig Goat Banana Cricket | Radical Rick (voice) | 2015-07-16 |
| Movie | Krampus | Clumpy (voice) | 2015-11-26 |
| Movie | TV's Funniest Animated Stars: A Paley Center for Media Special | Self | 2015-12-07 |
| Series | King Star King | Hank Waffles (voice) | 2014-06-15 |
| Series | The Cyanide & Happiness Show | Boss (voice) | 2014-11-12 |
| Series | Rick and Morty | Cromulons (voice) | 2013-12-02 |
| Series | Out There | Chris | 2013-02-22 |
| Series | Uncle Grandpa | Additional Voices (voice) | 2013-09-02 |
| Movie | Underdogs | Rippers (voice) | 2013-07-18 |
| Series | The Littlest Sketch Show | Husband | 2013-09-28 |
| Movie | The Animated Tales of GWAR | Little Boy | 2013-11-14 |
| Series | Gravity Falls | Blendin Blandin (voice) | 2012-06-15 |
| Series | Princess Kazoo's Kartoon Show | The Simptsons | 2012-07-28 |
| Series | Super F*ckers | Orange Lightning (voice) / Vortex (voice) | 2012-11-30 |
| Series | Icons of Teen | Teenage Dumbledore | 2012-10-18 |
| Movie | Fred & Vinnie | Pizza Delivery Guy | 2011-01-01 |
| Series | Half in the Bag | Mike / Jay (voice) | 2011-03-11 |
| Series | Adventure Time | Earl of Lemongrab (voice) / Starfish Martian (voice) | 2010-04-05 |
| Series | Fish Hooks | Oscar (voice) | 2010-09-03 |
| Series | Adventures in Advertising | Huggin's Diaper (voice) | 2009-04-26 |
| Movie | Marooned? | Cadet Moore | 2009-01-23 |
| Series | The Vacationaires | Travel Agent | 2009-06-28 |
| Series | Everything | Unknown | 2009-08-30 |
| Movie | Santa Buddies | Chihuahua (uncredited) | 2009-10-22 |
| Series | Community | Ice Cube Head (voice) | 2009-09-17 |
| Series | Tales from Railroad Times | Theodore Ward (voice) | 2008-06-29 |
| Series | Water And Power | Justin | 2008-04-27 |
| Series | The Bed & Breakfast Club | Luke | 2008-01-27 |
| Series | Mattress Guy | Mattress Guy (voice) | 2008-03-30 |
| Series | Planners | Planbot (voice) | 2008-07-27 |
| Movie | Googas | 2008-10-26 | |
| Series | The Mountain | Mogul Jones | 2008-10-26 |
| Series | The Pop | Pappy | 2008-08-31 |
| Series | Shitbuster | Superfan | 2008-10-26 |
| Series | Mister Sprinkles | Mister Sprinkles (voice) | 2007-03-23 |
| Series | Acceptable.tv | Self / Captain | 2007-03-23 |
| Series | Reporters | Jerry | 2007-01-28 |
| Series | Cautionary Tales of Swords | Jazzman | 2007-06-24 |
| Series | The Sarah Silverman Program. | Blonde Craig | 2007-02-01 |
| Movie | Mr. Sprinkles | Mr. Sprinkles (voice) | 2007-05-03 |
| Series | Yo Gabba Gabba! | Sea Queen (voice) | 2007-08-20 |
| Series | Fantastimart | Billy The Bull (voice) / White Kid (voice) | 2007-10-31 |
| Series | Eat My Shit | Little Kid (voice) | 2007-10-28 |
| Series | The Forgotten Classics | Jewish Redneck | 2007-10-28 |
| Movie | The Carebears | Unknown | 2007-10-01 |
| Series | My Friend Mike | Robot / Mike / Dirk Peters | 2007-09-30 |
| Series | musium of soda | Unknown | 2006-03-26 |
| Series | Magic Fantastic Animatic | (voice) | 2006-05-28 |
| Series | Opportunity Knockers | Banana Bandit | 2006-02-26 |
| Series | Classroom | Jason | 2006-01-29 |
| Series | Phone Sexxers | Sebastian / Shard Face | 2006-06-25 |
| Series | Unbelievable Tales | Little Dipper (voice) | 2006-01-29 |
| Series | Pretty President | Conservative Columnist | 2006-02-26 |
| Series | Puzzles | Jeremy | 2006-03-26 |
| Movie | Tenacious D: Time Fixers | Abe Lincoln | 2006-11-14 |
| Series | Christmas World 2050 | King Snyder / Reginald | 2006-10-26 |
| Movie | Christmas World 2050 | King Snyder / Reginald | 2006-10-29 |
| Movie | The Real Animated Adventures of Doc and Mharti | Doc Smith / Mharti McDonhalds (voice) | 2006-10-29 |
| Series | The Real Animated Adventures of Doc and Mharti | Doc Smith (voice) / Mharti Mcdonalds (voice) | 2006-10-29 |
| Series | Exposure | Himself | 2006-10-29 |
| Movie | The Real Animated Adventures of Doc and Mharti | Doc Smith / Mharti McDonhalds | 2006-10-29 |
| Series | Rock Gods of Rock | Geisha Referee | 2005-06-26 |
| Series | House of Cosbys | Data Analysis Cosby (voice) | 2005-01-30 |
| Series | Yacht Rock | Christopher Cross | 2005-06-26 |
| Series | Robot Chicken | Booking Agent (voice) | 2005-02-20 |
| Series | The Most Extraordinary Space Investigations | Sampson | 2005-04-24 |
| Series | Channel 101: The Musical | Himself | 2005-08-28 |
| Series | The Call of Echo Mountain | Tom Osterwoldt | 2005-10-30 |
| Series | Losting | Unknown | 2005-11-02 |
| Movie | Cookie Party | Cookie (voice) | 2005-10-04 |
| Series | Cheap Seats | Rhonda's Son | 2004-02-04 |
| Series | Sockbaby | Lungs (voice) | 2004-01-25 |
| Series | Toro and Moro | Toro (voice) / Mr. Nanners (voice) / Customer #1 (voice) | 2004-01-01 |
| Series | Friends and Lovers | Captain Zander | 2004-03-01 |
| Series | It's Twissleton | Peter (voice) / Susan (voice) / Commander Sparks (voice) / | 2004-03-29 |
| Series | Documentary: The Series | Documenter #2 | 2004-08-30 |
| Series | Laser Fart | Hurtful Guy | 2004-03-29 |
| Series | PJ and Kid Spaceship | PJ (voice) | 2004-08-30 |
| Series | Hilarious Jokes | Leroy Paloni (voice) | 2004-04-25 |
| Series | Aqua Teen Hunger Force | Honest Abe Lincoln's Hot Links Mascot (voice) | 2000-12-30 |
| Series | The Simpsons | Rick Sanchez / Morty Smith (voice) | 1989-12-17 |
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