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Jason Alexander
Actor

Jason Alexander

1959Newark, New Jersey, USA 103 Movies101 TV Shows

Jay Scott Greenspan (born September 23, 1959), better known by his professional name of Jason Alexander, is an American actor, writer, comedian, television director and producer, and singer. He is best known for his role as George Costanza on the television series Seinfeld, appearing in the sitcom from 1989 to 1998. He also has had an active career on the stage, appearing in several Broadway musicals including Jerome Robbins' Broadway in 1989, for which he won the Tony Award as Best Actor in a Musical.

Filmography

More Movies

103 titles
Jimmy
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Louis B. Mayer

Jimmy

2026
The Gettysburg Address
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Noah Brooks (voice)

The Gettysburg Address

2025
Paddy Chayefsky: Collector of Words
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Self

Paddy Chayefsky: Collector of Words

2025
Stealing Pulp Fiction
View
Dr. Mendelbaum
4.0

Stealing Pulp Fiction

2025
The Electric State
View
Ted / Wingman
6.5

The Electric State

2025
Dick Van Dyke: 98 Years of Magic
View
Self - Performer
7.8

Dick Van Dyke: 98 Years of Magic

2023
Leo
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Jayda's Dad (voice)
7.4

Leo

2023
The Conspiracy
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The Conspiracy

2022
Killing Me Softly with His Songs
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Self
5.0

Killing Me Softly with His Songs

2022
Out of Office
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6.1

Out of Office

2022
Cinderella: The Reunion, A Special Edition of 20/20
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Self
8.0

Cinderella: The Reunion, A Special Edition of 20/20

2022
Dunston Checks Out
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Jason Alexander (archival footage)

Dunston Checks Out

2022
Broadway: Beyond the Golden Age
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Self

Broadway: Beyond the Golden Age

2021
The Rocky Horror Musical Live Stream
View
Narrator
4.8

The Rocky Horror Musical Live Stream

2020
Faith Based
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Nicky Steele
4.5

Faith Based

2020
My Boyfriend's Meds
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Dr. Sternbach
7.2

My Boyfriend's Meds

2020
The Portuguese Kid
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Barry Dragonetti
2.0

The Portuguese Kid

2018
Bucky and the Squirrels
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Jason Alexander

Bucky and the Squirrels

2018
The Truth Is in the Stars
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Self
7.1

The Truth Is in the Stars

2017
The Mark Lembeck Technique
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Mark Lembeck

The Mark Lembeck Technique

2016
Best Worst Thing That Ever Could Have Happened...
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Self
7.5

Best Worst Thing That Ever Could Have Happened...

2016
For the Love of Spock
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Self
7.4

For the Love of Spock

2016
There's Something About Romcoms
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Self
6.0

There's Something About Romcoms

2016
Tom and Jerry: Back to Oz
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Mr. Bibb / The Nome King (voice)
6.0

Tom and Jerry: Back to Oz

2016
The Last Laugh
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Self
6.9

The Last Laugh

2016
China, Il The Musical
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Harold

China, Il The Musical

2015
Larry Gaye: Renegade Male Flight Attendant
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Larry's Dad
4.6

Larry Gaye: Renegade Male Flight Attendant

2015
Misery Loves Comedy
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Self
6.0

Misery Loves Comedy

2015
Wild Card
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Pinky
5.7

Wild Card

2015
How Murray Saved Christmas
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Doc Holiday (voice)
5.9

How Murray Saved Christmas

2014
Lucky Stiff
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Vinnie Di Ruzzio
4.4

Lucky Stiff

2014
Stars in Shorts
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Sid Rosenthal
6.0

Stars in Shorts

2012
National Lampoon's Another Dirty Movie
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Self (uncredited)
2.1

National Lampoon's Another Dirty Movie

2012
The Voyages of Young Doctor Dolittle
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Eugene (voice)
2.0

The Voyages of Young Doctor Dolittle

2011
Dora the Explorer: Dora's Enchanted Forest Adventures
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Owl (voice)
10.0

Dora the Explorer: Dora's Enchanted Forest Adventures

2011
A Fairly Odd Movie: Grow Up, Timmy Turner!
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Cosmo
4.9

A Fairly Odd Movie: Grow Up, Timmy Turner!

2011
Not Your Time
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Sid Rosenthal
1.0

Not Your Time

2010
Quantum Quest: A Cassini Space Odyssey
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Moronic (voice)
6.3

Quantum Quest: A Cassini Space Odyssey

2010
Rock Slyde
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Mailman Stan
5.4

Rock Slyde

2010
Hachi: A Dog's Tale
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Carl
8.0

Hachi: A Dog's Tale

2009
Jerry Seinfeld: Submarine Captain
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Self
6.5

Jerry Seinfeld: Submarine Captain

2007
The Grand
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Dr. Yakov Achmed
5.8

The Grand

2007
Farce of the Penguins
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Penguin on Belly (voz)
4.1

Farce of the Penguins

2006
Comedy Central Roast of William Shatner
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Self - Roastmaster
6.5

Comedy Central Roast of William Shatner

2006
How to Go Out on a Date in Queens
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Johnny
2.2

How to Go Out on a Date in Queens

2006
Snoop Dogg's Hood of Horror
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British Record Mogul
4.8

Snoop Dogg's Hood of Horror

2006
Ira & Abby
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Dr. Morris Saperstein
5.5

Ira & Abby

2006
Earth to America
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self
8.0

Earth to America

2005
The Aristocrats
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Self
6.0

The Aristocrats

2005
A Christmas Carol
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Jacob Marley / Marley's Ghost
6.4

A Christmas Carol

2004
The Seinfeld Story
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Self
7.5

The Seinfeld Story

2004
Seinfeld: How It Began
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Self/George Costanza
7.8

Seinfeld: How It Began

2004
Agent Cody Banks 2: Destination London
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Executive Producer
5.6

Agent Cody Banks 2: Destination London

2004
The Very Best of America's Funniest Comedians
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Self (archive footage)

The Very Best of America's Funniest Comedians

2003
Agent Cody Banks
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Executive Producer
5.5

Agent Cody Banks

2003
101 Dalmatians II: Patch's London Adventure
View
Lightning (voice)
6.0

101 Dalmatians II: Patch's London Adventure

2003
The Man Who Saved Christmas
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A.C. Gilbert
6.1

The Man Who Saved Christmas

2002
The Hunchback of Notre Dame II
View
Gargoyle Hugo (voice)
5.4

The Hunchback of Notre Dame II

2002
Being 'Shallow Hal'
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Self
8.0

Being 'Shallow Hal'

2001
Shallow Hal
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Mauricio Wilson
6.2

Shallow Hal

2001
On Edge
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Zamboni Phil
4.8

On Edge

2001
The Trumpet of the Swan
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Father (voice)
5.6

The Trumpet of the Swan

2001
Bravo Profiles: Penn and Teller
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Self

Bravo Profiles: Penn and Teller

2001
The Adventures of Rocky & Bullwinkle
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Boris
4.3

The Adventures of Rocky & Bullwinkle

2000
Let's Rap Fire Safety
View
6.5

Let's Rap Fire Safety

2000
Ultimate Trek: Star Trek's Greatest Moments
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Host
1.0

Ultimate Trek: Star Trek's Greatest Moments

1999
The N.Y. Friars Club Roast of Jerry Stiller
View
Self - Roastmaster
5.3

The N.Y. Friars Club Roast of Jerry Stiller

1999
Just Looking
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Director
5.7

Just Looking

1999
Larry David: Curb Your Enthusiasm
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Self
7.5

Larry David: Curb Your Enthusiasm

1999
Love and Action in Chicago
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Frank Bonner
4.7

Love and Action in Chicago

1999
Madeline: Lost in Paris
View
Uncle Horst / Henri (voice)
6.8

Madeline: Lost in Paris

1999
Sideshow: Alive on the Inside
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Narrator

Sideshow: Alive on the Inside

1999
Jingle Bells
View
Elf (Voice)
6.0

Jingle Bells

1999
Denial
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Art Witz
4.4

Denial

1998
Titey
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Titey (voice)

Titey

1998
Cinderella
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Lionel
6.5

Cinderella

1997
Love! Valour! Compassion!
View
Buzz Hauser
6.1

Love! Valour! Compassion!

1997
The Hunchback of Notre Dame
View
Gargoyle Hugo (voice)
7.1

The Hunchback of Notre Dame

1996
Dunston Checks In
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Robert Grant
5.4

Dunston Checks In

1996
Bye Bye Birdie
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Albert J. Peterson
6.1

Bye Bye Birdie

1995
The Last Supper
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Anti-Enviroment
6.5

The Last Supper

1995
For Better or Worse
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Michael Makeshift
4.0

For Better or Worse

1995
A Tribute to Stephen Sondheim
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A Tribute to Stephen Sondheim

1995
The Return of Jafar
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Abis Mal - the Chief of the Thieves (voice)
6.2

The Return of Jafar

1994
Blankman
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Mr. Stone
5.3

Blankman

1994
North
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North's Dad
5.0

North

1994
Down on the Waterfront
View
5.0

Down on the Waterfront

1994
The Paper
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Marion Sandusky
6.6

The Paper

1994
Coneheads
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Larry Farber
5.5

Coneheads

1993
Sexual Healing
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Frank

Sexual Healing

1993
For Goodness Sake
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Electronics Store Customer
10.0

For Goodness Sake

1993
I Don't Buy Kisses Anymore
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Bernie Fishbine
4.6

I Don't Buy Kisses Anymore

1992
Jacob's Ladder
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Geary
7.4

Jacob's Ladder

1990
White Palace
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Neil
6.4

White Palace

1990
Pretty Woman
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Philip Stuckey
7.5

Pretty Woman

1990
Brighton Beach Memoirs
View
Pool Player #1
6.6

Brighton Beach Memoirs

1986
The Mosquito Coast
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Hardware Clerk
6.4

The Mosquito Coast

1986
Rockabye
View
Lt. Ernest Foy
8.0

Rockabye

1986
Senior Trip
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Pete
3.7

Senior Trip

1981
The Burning
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Dave
6.2

The Burning

1981
Broadway: The Next Generation
View
Self

Broadway: The Next Generation

The Sisters Rosensweig
View
Mervyn

The Sisters Rosensweig

Leo 2
View

Leo 2

Television

More TV Shows

101 titles
LEGO Marvel Avengers: Strange Tails
View
Magneto (voice)
5.6

LEGO Marvel Avengers: Strange Tails

2025
The Bad Guys: Breaking In
View
Mysterious Figure (voice)
6.4

The Bad Guys: Breaking In

2025
Y llegaron de noche
View
Carl Laemmle
7.1

Y llegaron de noche

2024
Rock, Paper, Scissors
View
Jonathan Fartjoke (voice)
7.4

Rock, Paper, Scissors

2023
History of the World: Part II
View
Maurice Cheeks
5.6

History of the World: Part II

2023
Star Trek: Prodigy
View
Doctor Noum (voice)
7.3

Star Trek: Prodigy

2021
The Problem with Jon Stewart
View
Jeff Bezos
7.2

The Problem with Jon Stewart

2021
History of the Sitcom
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Self - Actor
6.9

History of the Sitcom

2021
Celebrity Wheel of Fortune
View
Self - Contestant
7.0

Celebrity Wheel of Fortune

2021
Stars in the House
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Self

Stars in the House

2020
The Movies That Made Us
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Self
7.2

The Movies That Made Us

2019
Harley Quinn
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Sy Borgman (voice)
8.3

Harley Quinn

2019
Mad About You
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Jason Alexander
8.0

Mad About You

2019
The Conners
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Pastor Phil
7.1

The Conners

2018
Hit the Road
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Ken Swallow
7.2

Hit the Road

2017
Young Sheldon
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Gene Lundy
8.0

Young Sheldon

2017
The Orville
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Olix
7.6

The Orville

2017
Kody Kapow
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Goji (voice)

Kody Kapow

2017
The Marvelous Mrs. Maisel
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Asher Friedman
8.1

The Marvelous Mrs. Maisel

2017
Dinner with Dad
View
Jason Alexander

Dinner with Dad

2017
The $100,000 Pyramid
View
Self
7.0

The $100,000 Pyramid

2016
Match Game
View
Self - Panelist
6.4

Match Game

2016
To Tell the Truth
View
Self - Panelist
5.7

To Tell the Truth

2016
The Grinder
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Cliff Bemis
6.7

The Grinder

2015
Big Time in Hollywood, Fl
View
Jason Alexander
7.1

Big Time in Hollywood, Fl

2015
The Late Late Show with James Corden
View
Self
5.2

The Late Late Show with James Corden

2015
Penn Zero: Part-Time Hero
View
Coach Wallace (voice)
7.2

Penn Zero: Part-Time Hero

2014
The Tom and Jerry Show
View
Rick (voice)
7.3

The Tom and Jerry Show

2014
TripTank
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Doctor (voice)
5.2

TripTank

2014
Late Night with Seth Meyers
View
Self - Guest
5.3

Late Night with Seth Meyers

2014
Kirstie
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Stanford Temple
4.6

Kirstie

2013
Hollywood Game Night
View
Self
6.5

Hollywood Game Night

2013
Drunk History
View
William Tweed
6.9

Drunk History

2013
Comedians in Cars Getting Coffee
View
Self
7.1

Comedians in Cars Getting Coffee

2012
Comedy Bang! Bang!
View
Inspector Gantlet
6.2

Comedy Bang! Bang!

2012
Talking Dead
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Self
7.2

Talking Dead

2011
China, IL
View
Harold (voice)
6.9

China, IL

2011
Franklin & Bash
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Carter Lang
7.2

Franklin & Bash

2011
Harry's Law
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Richard Cross
7.3

Harry's Law

2011
Mike & Molly
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Director
6.7

Mike & Molly

2010
Fish Hooks
View
Mr. Nibbles
6.5

Fish Hooks

2010
The Cleveland Show
View
5.9

The Cleveland Show

2009
Community
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Mountain Man
8.0

Community

2009
Meteor
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Dr. Chetwyn
6.2

Meteor

2009
Shatner's Raw Nerve
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Self
4.0

Shatner's Raw Nerve

2008
Thank God You're Here
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Self

Thank God You're Here

2007
Rachael Ray
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Self - Guest
5.1

Rachael Ray

2006
Talkshow with Spike Feresten
View
5.5

Talkshow with Spike Feresten

2006
The New Adventures of Old Christine
View
Dr. Palmer
7.1

The New Adventures of Old Christine

2006
Campus Ladies
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Director
3.0

Campus Ladies

2006
Everybody Hates Chris
View
Principal Edwards
8.1

Everybody Hates Chris

2005
Criminal Minds
View
Prof. Rothchild
8.3

Criminal Minds

2005
Robot Chicken
View
Krampus (voice)
7.7

Robot Chicken

2005
American Dad!
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Mr. Orlando (voice)
7.0

American Dad!

2005
The Late Late Show with Craig Ferguson
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Self
6.7

The Late Late Show with Craig Ferguson

2005
Listen Up!
View
Tony Kleinman
6.2

Listen Up!

2004
Two and a Half Men
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Dr. Goodman
7.4

Two and a Half Men

2003
The Ellen DeGeneres Show
View
Self
5.6

The Ellen DeGeneres Show

2003
Real Time with Bill Maher
View
Self
6.0

Real Time with Bill Maher

2003
Jimmy Kimmel Live!
View
Self
5.4

Jimmy Kimmel Live!

2003
The Twilight Zone
View
Patient
7.2

The Twilight Zone

2002
Monk
View
Marty Eels
7.9

Monk

2002
Bob Patterson
View
Bob Patterson
6.5

Bob Patterson

2001
The Legend of Tarzan
View
Zutho (voice)
7.0

The Legend of Tarzan

2001
Primetime Glick
View
6.8

Primetime Glick

2001
Critics Choice Awards
View
Self
7.9

Critics Choice Awards

2001
Disney's House of Mouse
View
7.5

Disney's House of Mouse

2001
Curb Your Enthusiasm
View
Jason Alexander
8.0

Curb Your Enthusiasm

2000
The Huntress
View
5.2

The Huntress

2000
Son of the Beach
View
6.5

Son of the Beach

2000
Malcolm in the Middle
View
Leonard
8.5

Malcolm in the Middle

2000
The Late Late Show with Craig Kilborn
View
Self - Guest
4.6

The Late Late Show with Craig Kilborn

1999
Dilbert
View
Catbert (voice)
6.7

Dilbert

1999
Hollywood Squares
View
Self - Panelist
7.3

Hollywood Squares

1998
Hercules
View
Poseidon
6.9

Hercules

1998
Muppets Tonight
View
Self
7.4

Muppets Tonight

1996
Remember WENN
View
Alan Ballinger
8.0

Remember WENN

1996
Star Trek: Voyager
View
Kurros
7.8

Star Trek: Voyager

1995
Friends
View
Earl
8.4

Friends

1994
Duckman
View
Duckman (voice)
7.1

Duckman

1994
Aladdin
View
Abis Mal (voice)
7.0

Aladdin

1994
The Nanny
View
Jack
8.1

The Nanny

1993
The Larry Sanders Show
View
Jason Alexander
7.7

The Larry Sanders Show

1992
Dinosaurs
View
Grown Baby (voice)
7.8

Dinosaurs

1991
Dream On
View
Randall Townsend
6.9

Dream On

1990
The Simpsons
View
Bourbon Verlander (voice)
8.0

The Simpsons

1989
Seinfeld
View
George Costanza
8.3

Seinfeld

1989
Favorite Son
View
Chris Van Allen
4.0

Favorite Son

1988
LIVE with Kelly and Mark
View
Self - Guest
5.4

LIVE with Kelly and Mark

1988
Everything's Relative
View
Julian Beeby
5.5

Everything's Relative

1987
E/R
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Harold Stickley
4.6

E/R

1984
Jeopardy!
View
Self
6.8

Jeopardy!

1984
Reading Rainbow
View
Self - Narrator (voice)
8.4

Reading Rainbow

1983
Newhart
View
7.1

Newhart

1982
Late Night with David Letterman
View
Self
6.0

Late Night with David Letterman

1982
A Capitol Fourth
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Self

A Capitol Fourth

1980
Saturday Night Live
View
Self - Host
7.0

Saturday Night Live

1975
People's Choice Awards
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Self - Host
9.2

People's Choice Awards

1975
The Emmy Awards
View
Self
7.9

The Emmy Awards

1949
Golden Globe Awards
View
Self - Nominee
7.2

Golden Globe Awards

1944
Saturday TV Funhouse
View
Titey (voice)
10.0

Saturday TV Funhouse