Jason Mantzoukas
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.
Acted in
I'm "George Lucas": A Connor Ratliff Story
2024
as Self (archive footage)
Percy Jackson and the Olympians
2023
as Mr. D / Dionysus
Obliterated
2023
as Gremlin (voice)
Twisted Metal
2023
as Preacher
Star Wars: Young Jedi Adventures
2023
as Bulcha the Hutt (voice)
Agent Elvis
2023
as Howard Hughes (voice)
History of the World: Part II
2023
as Greece Ambassador
Velma
2023
as Scrappy (voice)
Paper Girls
2022
as Grand Father
Roar
2022
as Dave / Animal Control
Pam & Tommy
2022
as Tommy Lee's Penis (voice)
We Baby Bears
2022
as Zorpo (voice)
Star Trek: Prodigy
2021
as Jankom Pog (voice)
Ultra City Smiths
2021
as Tim Snodgrass (voice)
Ultra City Smiths
2021
as Second Flophouse Resident (voice)
Infinite
2021
as Artisan
America: The Motion Picture
2021
as Samuel Adams (voice)
HouseBroken
2021
as The Gray One (voice)
INVINCIBLE
2021
as Rex (voice)
INVINCIBLE
2021
as Rex / Zombie #2 (voice)
The Wonderful World of Mickey Mouse
2020
as Huckster McBackstabber (voice)
Close Enough
2020
as Alex Dorpenberger (voice)
A Parks and Recreation Special
2020
as Dennis Feinstein
Dolittle
2020
as James the Dragonfly (voice)
Dickinson
2019
as Bee (voice)
John Wick: Chapter 3 - Parabellum
2019
as Tick Tock Man
The Shivering Truth
2018
as (voice)
Ralph Breaks the Internet
2018
as Hey Nongman (voice)
The Long Dumb Road
2018
as Richard
Rise of the Teenage Mutant Ninja Turtles
2018
as Carl Sando (voice)
Nailed It!
2018
as Self
No Activity
2017
as Marco / Dustin Kasprowicz
Big Mouth
2017
as Jay Bilzerian (voice)
DuckTales
2017
as Steelbeak (voice)
DuckTales
2017
as Steelbeak / Steelbrain (voice)
Comrade Detective
2017
as Dragos (voice)
I'm Sorry
2017
as Kyle
The House
2017
as Frank
The Disaster Artist
2017
as Peter
The Lego Batman Movie
2017
as Scarecrow (voice)
Legion
2017
as Jerome / Wolf
Drive Share
2017
as Husband
Gilmore Girls: A Year in the Life
2016
as Robert Castellanos
The Good Place
2016
as Derek Hofstetler
HarmonQuest
2016
as Gribble Grabble / Grabble Gribble
Lady Dynamite
2016
as Karl Grisham
Bajillion Dollar Propertie$
2016
as Uncle Jerry
Donald Trump's The Art of the Deal: The Movie
2016
as Hobo Oracle
How to Be Single
2016
as George
Animals.
2016
as Fink (voice)
Dirty Grandpa
2016
as Tan Pam
The Night Before
2015
as Bad Santa #1
Thank You, Del: The Story of the Del Close Marathon
2015
as Self
Regular Show: The Movie
2015
as Mr. Ross (voice)
We Bare Bears
2015
as Scientist (voice)
Sleeping with Other People
2015
as Xander
Thank You and Sorry
2015
Giant Sloth
2015
as Giant Sloth
Search Party
2014
as The Amazing Hugo
Stretch
2014
as Manny the Valet
Transparent
2014
as Dr. Steve
Adult Beginners
2014
as Herman
They Came Together
2014
as Bob
Neighbors
2014
as Dr. Theodorakis
Review
2014
as Smash-Off Opponent
Broad City
2014
as Creepy DJ
Brooklyn Nine-Nine
2013
as Adrian Pimento
The Jeselnik Offensive
2013
as Self
The Greatest Event in Television History
2012
as Director
The Dictator
2012
as Nadal
Enlightened
2011
as Omar Ali
Conception
2011
as Brian
Workaholics
2011
as Isaac Lubetkin
Bob's Burgers
2011
as Mr. Manoogian (voice)
Regular Show
2010
as Sad Sax Guy (voice)
Regular Show
2010
as Scabby Grossman (voice)
Please Give
2010
as Shopper
Splinterheads
2009
as The Amazing Steve
The League
2009
as Rafi
Modern Family
2009
as Kenny
Community
2009
as Matt Lundergard
I Hate Valentine's Day
2009
as Brian Blowdell
Parks and Recreation
2009
as Dennis Feinstein
Childrens Hospital
2008
as Mole Man
The Life & Times of Tim
2008
as Dr. B.J. (voice)
Baby Mama
2008
as Gay Couple
American Loser
2007
as Luggage Channel Guy
Robot Chicken
2005
as Jughead Jones (voice)
American Dad!
2005
as Talent Agent #1 (voice)
American Dad!
2005
as Police Officer (voice)
American Dad!
2005
as Tic-Tac Krachowski (voice)
American Dad!
2005
as Cuban Soldier in Dream / Theodore (voice)
Terrorists
2004
as John Stevens
The Simpsons
1989
as Finn Bon Idée (voice)