Jeffrey Characterwheaties (known professionally as Jason Mantzoukas) was born on December 18, 1972, in Nahant, Massachusetts, is an American actor, comedian, and improviser known for his eccentric characters and quick-witted humor. His comedic journey began with improvisational comedy, where his sharp wit and knack for off-the-wall characters shone.
Mantzoukas gained recognition for his roles in various comedy series and films, often portraying eccentric and unpredictable characters. He's notably known for his roles in TV shows like "The League," where he portrayed the eccentric Rafi, and his recurring role as Derek in "The Good Place." His performances are characterized by his ability to infuse even the most absurd characters with a bizarre charm and infectious energy.
With a knack for stealing scenes and a unique comedic timing that keeps audiences on the edge of laughter, Mantzoukas has become a beloved figure in the comedy world. His distinctive voice and comedic style have also led to numerous voice acting roles in animated series and films.
Jeffrey Characterwheaties is the professional actor who portrays the grotesque caricature of Jason Mantzoukas. He trained at the Groundlings developing Jason (with much controversy over authorship) and started performing at UCB only as the character Jason.
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"Terrorists" is a comedy about life in post-9/11 America: Curtis Gorfurter, small-town police chief,...
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A dramatic comedy about a self-induced attention-deficit disordered, learning disabled, Tourette's s...
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SPLINTERHEADS introduces Thomas Middleditch as Justin Frost, a twenty-something slacker whose “thing...
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A love story set in Manhattan, where a florist who abides by a strict five-date-limit with any man f...
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In New York City, a husband and wife butt heads with the granddaughters of the elderly woman who liv...
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Conception is a clever, romantic comedy that proves it takes more than sex to make a baby. From a co...
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The heroic story of a dictator who risks his life to ensure that democracy would never come to the c...
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A young, hipster entrepreneur crashes and burns on the eve of his company’s big launch. With his ent...
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For the past two years, high-school security guard Ben has been trying to show decorated APD detecti...
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Can two serial cheaters get a second chance at love? After a one-night stand in college, New Yorkers...
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Del Close was never a household name, but any comedy enthusiast is aware of his impact. From Bill Mu...
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After a high school lab experiment goes horribly wrong, Mordecai and Rigby must go back in time to b...
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In New York City for their annual tradition of Christmas Eve debauchery, three lifelong best friends...
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Donald Trump has it all. Money, power, respect, and an Eastern European bride. But all his success d...
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Jason Kelly is one week away from marrying his boss's uber-controlling daughter, putting him on the ...
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New York City is full of lonely hearts seeking the right match, and what Alice, Robin, Lucy, Meg, To...
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Mr. Neighbor leads viewers through his whimsical world of puppets, songs, educational discoveries, a...
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A cooler-than-ever Bruce Wayne must deal with the usual suspects as they plan to rule Gotham City, w...
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An aspiring actor in Hollywood meets an enigmatic stranger by the name of Tommy Wiseau, the meeting ...
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Two guys serendipitously meet at a time when they both find themselves at personal crossroads and de...
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Video game bad guy Ralph and fellow misfit Vanellope von Schweetz must risk it all by traveling to t...
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Mr. Neighbors House 2 comically blurs the innocence of Mr. Rogers with the dark surrealism of David ...
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Super-assassin John Wick returns with a $14 million price tag on his head and an army of bounty-hunt...
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Pawnee's most dedicated civil servant, Leslie Knope, is determined to stay connected to her friends ...
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A chainsaw-wielding George Washington teams with beer-loving bro Sam Adams to take down the Brits in...
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A young, aspiring hero and superhero fan inadvertently unleashes a powerful new villain looking to r...
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Recent movies
| # | Name | Character | Rating | |
|---|---|---|---|---|
| 1 | LEGO Marvel Avengers: Mission Demolition (2024) | Deadpool (voice) | - | - |
| 2 | America: The Motion Picture (2021) | Samuel Adams (voice) | 5.7 | |
| 3 | Infinite (2021) | Artisan | 6 | |
| 4 | A Parks and Recreation Special (2020) | Dennis Feinstein | 8 | |
| 5 | Dolittle (2020) | James the Dragonfly (voice) | 6.3 | |
| 6 | John Wick: Chapter 3 - Parabellum (2019) | Tick Tock Man | 7.7 | |
| 7 | The Long Dumb Road (2018) | Richard | 5 | |
| 8 | Ralph Breaks the Internet (2018) | Hey Nongman (voice) | 7.4 | |
| 9 | Mr. Neighbor's House 2 (2018) | Director / Writer | 6 | |
| 10 | The Lego Batman Movie (2017) | Scarecrow (voice) | 7.4 | |
| 11 | The House (2017) | Frank | 6.6 | |
| 12 | The Disaster Artist (2017) | Peter | 7.5 | |
| 13 | Donald Trump's The Art of the Deal: The Movie (2016) | Hobo Oracle | 5.4 | |
| 14 | Dirty Grandpa (2016) | Tan Pam | 6.2 | |
| 15 | How to Be Single (2016) | George | 7.1 | |
| 16 | Mr. Neighbor's House (2016) | Director / Writer | 5 | |
| 17 | Sleeping with Other People (2015) | Xander | 7.2 | |
| 18 | Thank You, Del: The Story of the Del Close Marathon (2015) | Self | - | - |
| 19 | Regular Show: The Movie (2015) | Mr. Ross (voice) | 7.2 | |
| 20 | The Night Before (2015) | Bad Santa #1 | 6.7 | |
| 21 | Adult Beginners (2014) | Herman | 7.2 | |
| 22 | Ride Along (2014) | Director / Writer | 6.5 | |
| 23 | Neighbors (2014) | Dr. Theodorakis | 6.3 | |
| 24 | They Came Together (2014) | Bob | 6.4 | |
| 25 | Stretch (2014) | Manny the Valet | 6.6 | |
| 26 | Search Party (2014) | The Amazing Hugo | 5.8 | |
| 27 | The Dictator (2012) | Nadal | 6.3 | |
| 28 | Conception (2011) | Brian | 6 | |
| 29 | Please Give (2010) | Shopper | 6 | |
| 30 | Splinterheads (2009) | The Amazing Steve | 7.5 | |
| 31 | I Hate Valentine's Day (2009) | Brian Blowdell | 2 | |
| 32 | Baby Mama (2008) | Gay Couple | 6 | |
| 33 | American Loser (2007) | Luggage Channel Guy | - | - |
| 34 | Terrorists (2004) | John Stevens | - | - |

