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