Rex Is Not Your Lawyer as Dr. Barry Cohen (1 episode)
The Adventures of Drunky as God
2021
The Clockwork Girl as Wilhelm the Tinkerer (voice)
2020
Magic Camp as Roy Preston
2020
Disclosure as Self (archive footage)
2018
The Zen Diaries of Garry Shandling as Self (2 episodes)
2018
55 Steps as Mort Cohen
2017
The Death of Stalin as Georgy Malenkov
2017
The Orville as Ben Mercer (1 episode)
2017
Rapunzel's Tangled Adventure as Big Nose (voice) (1 episode)
2017
Tangled: Before Ever After as Big Nose (voice)
2016
Trolls as King Peppy (voice)
2016
The Accountant as Francis Silverberg
2016
Brad Neely's Harg Nallin' Sclopio Peepio as (voice) (1 episode)
2016
The Last Laugh as Self
2015
Close Up with The Hollywood Reporter as Self (1 episode)
2015
The D Train as Bill Shurmur
2015
Star vs. the Forces of Evil as Glossaryck (voice) (13 episodes)
2014
Variety Studio: Actors on Actors as Self (1 episode)
2014
A Merry Friggin' Christmas as Snowman (voice)
2014
Transparent as Maura Pfefferman (40 episodes)
2014
Jennifer Falls as Don Hirsch (1 episode)
2014
Late Night with Seth Meyers as Self (2 episodes)
2014
The Tonight Show Starring Jimmy Fallon (1 episode)
2013
Phil Spector as Bruce Cutler
2013
The Hangover Part III as Sid Garner
2013
The Arrested Development Documentary Project as Self
2013
Onion News Empire as David Bryant
2013
The Cat in the Hat Knows a Lot About That! as Bettys friend (voice) (147 episodes)
2013
Monsters vs Aliens Stories
2012
Branded as Bob Gibbons
2012
Robot and Monster as St. Crispy (voice) (1 episode)
2012
For the Love of Money as Mr. Solomon
2012
Bent as Walt Riggins (6 episodes)
2012
Inside Comedy as Self (1 episode)
2011
Night of the Living Carrots as Carl Murphy (voice)
2011
China, IL as Professor Cakes (voice) (30 episodes)
2011
The Trivial Pursuits of Arthur Banks (3 episodes)
2011
Flypaper as Gordon Blythe
2011
Lucky as Detective Waylon
2011
Mr. Popper's Penguins as Mr. Gremmins
2011
The Hangover Part II as Sid Garner
2011
Paul as Adam Shadowchild
2011
Bubble Guppies as Night Wizard (voice) (2 episodes)
2011
Bob's Burgers as Captain Flarty (voice) (1 episode)
2010
Tangled as Big Nose Thug (voice)
2010
Running Wilde as Steven's Father (1 episode)
2010
Raising Hope (1 episode)
2010
Operation: Endgame as Devil
2010
Scooby-Doo! Mystery Incorporated as Gill Littlefoot (voice) (1 episode)
2010
Scooby-Doo! Abracadabra-Doo as Mr. Calvin Curdles (voice)
2010
This Side of the Truth, A Truly 'Honest' Making of The Invention of Lying as Self
2010
Meeting Spencer as Harris Chappell
2009
Prequel: The Dawn of Lying as Anthony
2009
The Invention of Lying as Anthony James
2009
The Good Wife as Judge George Kluger (4 episodes)
2009
Archer as Len Trexler (voice) (10 episodes)
2009
Archer as Torvald Utne (voice) (1 episode)
2009
The Hangover as Sid Garner
2009
Mutant Pumpkins from Outer Space as Carl Murphy (voice)
2009
Monsters vs Aliens as Carl Murphy (voice)
2008
Batman: The Brave and the Bold as Crazy Quilt / Green / Red (voice) (1 episode)
2008
Hellboy: In Service of the Demon as Self
2008
Hellboy II: The Golden Army as Tom Manning
2008
Superhero Movie as Dr. Whitby
2008
Welcome to the Captain as Uncle Saul (5 episodes)
2007
My Friends Tigger & Pooh: Super Sleuth Christmas Movie as Santa (voice)
2007
WordGirl (209 episodes)
2007
The ChubbChubbs Save Xmas as Santa Claus (voice)
2007
My Friends Tigger & Pooh as Santa (voice) (1 episode)
2007
The Making Of 'The Larry Sanders Show' as Hank Kingsley
2007
Not Just the Best of the Larry Sanders Show
2007
Slipstream as Geek / Jeffrey / Dr. Geekman
2006
Twenty Good Years (9 episodes)
2006
The Megan Mullally Show as Self - Guest (1 episode)
2006
Psych as Lloyd French (2 episodes)
2006
The New Adventures of Old Christine as Neil (1 episode)
2005
Earth to America as Self
2005
The Reichen Show as Self - Guest (1 episode)
2005
The Colbert Report as Himself (1 episode)
2005
The Muppets' Wizard of Oz as Wizard
2005
Medium as Todd Emory / Allison Dubois (1 episode)
2004
The SpongeBob SquarePants Movie as King Neptune (voice)
2004
Funky Monkey as Crane
2004
Entourage (1 episode)
2004
Hellboy as Tom Manning
2004
Game Over as Dr. Zed (voice) (2 episodes)
2004
EuroTrip as Scott's Dad (uncredited)
2003
Eloise at Christmastime as Mr. Salomone the Manager
2003
Arrested Development as George Bluth Sr. (84 episodes)
2003
Under the Tuscan Sun as Lawyer (uncredited)
2003
The Ellen DeGeneres Show as Self (4 episodes)
2003
My Boss's Daughter as Ken
2003
Scorched as Bank Employer
2003
Eloise at the Plaza as Mr. Salomone the Manager
2003
Malibu's Most Wanted as Dr. Feldman
2002
3-South (13 episodes)
2002
That Was Then (4 episodes)
2002
Ozzy & Drix as The Mole (voice) (3 episodes)
2001
Get Well Soon as Mitchell
2001
The Proud Family as Randolph Verascola (voice) (1 episode)
2001
Never Again as Christopher
2001
Next Caller as Jefferson (2 episodes)
2000
How the Grinch Stole Christmas as Mayor Augustus Maywho
2000
CSI: Crime Scene Investigation as Jerzy Skaggs (1 episode)
2000
Pollock as Clem Greenberg
2000
Sammy as Steve (voice) (1 episode)
1999
Girl, Interrupted as Dr. Potts
1999
My Teacher's Wife as Jack Boomer
1999
The Early Show as Self (1 episode)
1999
Law & Order: Special Victims Unit as Lester Cohen (4 episodes)
1999
The Lot (17 episodes)
1999
Teaching Mrs. Tingle as Coach Wenchell
1999
Muppets from Space as K. Edgar Singer
1999
Everything's Relative as Jake Gorelick (5 episodes)
1999
The Late Late Show with Craig Kilborn as Self (2 episodes)
1998
Meet Joe Black as Quince
1998
The Lionhearts as (voice) (3 episodes)
1998
Hollywood Squares as Self - Announcer (voice) (180 episodes)
1998
Hollywood Squares as Self - Panelist (20 episodes)
1998
Hercules as King Salmoneus (voice) (1 episode)
1998
There's Something About Mary as Sully
1998
Doctor Dolittle as Dr. Fish
1997
The Wonderful World of Disney (1 episode)
1997
Weapons of Mass Distraction as Alan Blanchard
1997
The Practice (1 episode)
1996
The Man Who Captured Eichmann as Isser Harel
1996
The Real Adventures of Jonny Quest as Black Jack Lee (voice) (1 episode)
1996
Big Bully as Art Lundstrum
1995
Jonny Quest vs. the Cyber Insects as Dr. Zin
1995
MADtv as Self (1 episode)
1995
Pinky and the Brain as Beetle Fiero (voice) (1 episode)
1995
Heavyweights as Maury Garner
1994
Radioland Murders as Walt Whalen Jr.
1994
Another Midnight Run as Bernie Abbot
1993
Late Night with Conan O'Brien as Self (1 episode)
1993
Late Night with Conan O'Brien as Self - Guest (2 episodes)
1993
At Home with the Webbers as Gerald Webber
1993
Jonny's Golden Quest as Dr. Zin
1993
Living and Working in Space: The Countdown Has Begun as Dr. Stockton
1993
A House in the Hills as Willie
1992
Crossing the Bridge as Uncle Alby
1992
Batman: The Animated Series as Crocker (voice) (1 episode)
1992
1775 as Governor Massengill
1992
1775 as Governor Massengill
1992
The Larry Sanders Show as Hank Kingsley (90 episodes)
1992
Article 99 as Dr. Leo Krutz
1992
The Burden of Proof as Sennett (2 episodes)
1991
City Slickers as Lou
1991
Life Stinks as Vance Crasswell
1991
Dinosaurs as Hank Hibler (voice) (1 episode)
1990
Pastime as Peter LaPorte
1990
A Quiet Little Neighborhood, a Perfect Little Murder as Don Hecker
1990
American Dreamer as Joe Baines (17 episodes)
1990
Bill & Ted's Excellent Adventures (1 episode)
1990
Law & Order as Barry Dilwynn (1 episode)
1990
Seriously... Phil Collins as Jeffrey Taglentini
1990
Lisa as Mr. Larry Marks
1990
The Easter Story as Peter (voice)
1989
Doogie Howser, M.D. (1 episode)
1989
Tales from the Crypt as Charlie Marno (1 episode)
1989
Brenda Starr as Vladimir
1989
Studio 5-B (10 episodes)
1988
LIVE with Kelly and Mark (1 episode)
1987
Funny, You Don't Look 200: A Constitutional Vaudeville as Writer
1987
Three O'Clock High as Mr. Rice
1987
Max Headroom as Murray (14 episodes)
1987
The Nativity as Eli (voice)
1986
L.A. Law as Gordon Salt (3 episodes)
1986
Mr. Sunshine (11 episodes)
1985
The Twilight Zone as Kyle Montgomery (2 episodes)
1985
The Golden Girls as Dr. Stevens (1 episode)
1985
Robert Kennedy & His Times as Pierre Salinger (3 episodes)
1984
No Small Affair as Ken
1984
The Three Wishes of Billy Grier as Dr. Lindsey
1984
Murder, She Wrote as Russell Armstrong (1 episode)
1984
Who's the Boss? (1 episode)
1983
The Awakening of Candra as Professor Michael Silver
1983
Sadat as Sharaff (2 episodes)
1983
The Man Who Wasn't There as Boris Potemkin
1983
Cocaine: One Man's Seduction as Mort Broome
1982
Take Your Best Shot as Alden Pepper
1982
9 to 5 as Franklin Hart (4 episodes)
1982
The Dream Chasers as Jeffrey Bauman
1981
Saturday the 14th as Waldemar
1981
The Star Maker as Harry Lanson
1981
A Gun in the House as Lance Kessler
1981
Hill Street Blues (9 episodes)
1981
Hill Street Blues as Judge Alan Wachtel (3 episodes)
1980
Alcatraz: The Whole Shocking Story as Dankworth (2 episodes)
1980
Alcatraz: The Whole Shocking Story as Dankworth
1979
...And Justice for All as Jay Porter
1979
The Ropers as Jeffrey P. Brookes III (28 episodes)
1978
Taxi as Congressman Walter Griswald (1 episode)
1977
The Love Boat as Harold Rogers (1 episode)
1977
The Love Boat as Lawrence Jurgens (1 episode)
1977
The Love Boat as Mr. Harold Rogers (1 episode)
1977
Three's Company as Phillip Greene (1 episode)
1977
Three's Company as Tom Miller (1 episode)
1977
Three's Company as Winston Cromwell III (1 episode)
1975
Starsky & Hutch (1 episode)
1975
Barney Miller as William Klein (1 episode)
1973
Kojak as Medical Examiner (1 episode)
1972
M*A*S*H as Reddish (1 episode)