Jason Alexander
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. He appeared in the Los Angeles production of The Producers with Martin Short. He is the Artistic Director of "Reprise! Broadway's Best in Los Angeles," where he has directed several musicals. Alexander is also an avid poker player.
Known For
Credits
- 2026 · Jimmy as Louis B. Mayer
- 2026 · Mating Season as Alan (voice)
- 2025 · The Gettysburg Address as Noah Brooks (voice)
- 2025 · LEGO Marvel Avengers: Strange Tails as Magneto (voice)
- 2025 · The Bad Guys: The Series as Mysterious Figure (voice)
- 2025 · The Bad Guys: The Series as D.B. Cougar (voice)
- 2024 · Y llegaron de noche as Carl Laemmle
- 2021 · History of the Sitcom as Self - Actor
- 2020 · Faith Based as Nicky Steele
- 2019 · Mad About You as Jason Alexander
- 2017 · Hit the Road as Ken Swallow
- 2017 · Kody Kapow as Goji (voice)
- 2017 · Dinner with Dad as Jason Alexander
- 2016 · For the Love of Spock as Self
- 2016 · There's Something About Romcoms as Self
- 2016 · Tom and Jerry: Back to Oz as Mr. Bibb / The Nome King (voice)
- 2016 · The Last Laugh as Self (archive footage) (uncredited)
- 2015 · Big Time in Hollywood, Fl as Jason Alexander
- 2015 · Misery Loves Comedy as Self
- 2014 · How Murray Saved Christmas as Doc Holiday (voice)
- 2014 · Lucky Stiff as Vinnie Di Ruzzio
- 2013 · Kirstie as Stanford Temple
- 2012 · Stars in Shorts as Sid Rosenthal
- 2012 · National Lampoon's Another Dirty Movie as Self (uncredited)
- 2011 · A Fairly Odd Movie: Grow Up, Timmy Turner! as Cosmo
- 2010 · Rock Slyde as Mailman Stan
- 2009 · Meteor as Dr. Chetwyn
- 2008 · Step It Up and Dance as
- 2007 · The Grand as Dr. Yakov Achmed
- 2007 · Thank God You're Here as Self
- 2006 · Farce of the Penguins as Penguin on Belly (voz)
- 2006 · Talkshow with Spike Feresten as
- 2006 · Snoop Dogg's Hood of Horror as British Record Mogul
- 2006 · Ira & Abby as Dr. Morris Saperstein
- 2006 · Where My Dogs At? as
- 2005 · Earth to America as self
- 2005 · The Aristocrats as Self
- 2003 · 101 Dalmatians II: Patch's London Adventure as Lightning (voice)
- 2002 · The Hunchback of Notre Dame II as Gargoyle Hugo (voice)
- 2001 · Bob Patterson as Bob Patterson
- 2001 · The Trumpet of the Swan as Father (voice)
- 2001 · Critics Choice Awards as Self
- 2000 · The Adventures of Rocky & Bullwinkle as Boris
- 1999 · Madeline: Lost in Paris as Uncle Horst / Henri (voice)
- 1999 · Jingle Bells as Elf (Voice)
- 1997 · Cinderella as Lionel
- 1996 · Dunston Checks In as Robert Grant
- 1995 · The Last Supper as Anti-Enviroment
- 1994 · Blankman as Mr. Stone
- 1994 · North as North's Dad
- 1994 · The Paper as Marion Sandusky
- 1993 · Coneheads as Larry Farber
- 1988 · Favorite Son as Chris Van Allen
- 1987 · Everything's Relative as Julian Beeby
- 1986 · Brighton Beach Memoirs as Pool Player #1
- 1986 · The Mosquito Coast as Hardware Clerk
- 1981 · The Burning as Dave
- 1980 · A Capitol Fourth as Self
- 1949 · The Emmy Awards as Self
- Future · Saturday TV Funhouse as Titey (voice)
- Future · Leo 2 as
- 2025 · Paddy Chayefsky: Collector of Words as Self
- 2025 · Stealing Pulp Fiction as Dr. Mendelbaum
- 2025 · The Electric State as Ted / Wingman
- 2024 · Rock, Paper, Scissors as Jonathan Fartjoke (voice)
- 2023 · Dick Van Dyke: 98 Years of Magic as Self - Performer
- 2023 · Leo as Jayda's Dad (voice)
- 2023 · History of the World: Part II as Maurice Cheeks
- 2022 · The Conspiracy as
- 2022 · Killing Me Softly with His Songs as Self
- 2022 · Out of Office as
- 2022 · Cinderella: The Reunion, A Special Edition of 20/20 as Self
- 2022 · Dunston Checks Out as Jason Alexander (archival footage)
- 2021 · Star Trek: Prodigy as Doctor Noum (voice)
- 2021 · Star Trek: Prodigy as Counselor Noum (voice)
- 2021 · The Problem with Jon Stewart as Jeff Bezos
- 2021 · Broadway: Beyond the Golden Age as Self
- 2021 · Celebrity Wheel of Fortune as Self - Contestant
- 2020 · The Rocky Horror Musical Live Stream as Narrator
- 2020 · Stars in the House as Self
- 2020 · Stars in the House as Self - Special Guest
- 2020 · My Boyfriend's Meds as Dr. Sternbach
- 2019 · Harley Quinn as Sy Borgman (voice)
- 2019 · The Movies That Made Us as Self
- 2018 · The Conners as Pastor Phil
- 2018 · The Portuguese Kid as Barry Dragonetti
- 2018 · Bucky and the Squirrels as Jason Alexander
- 2017 · Young Sheldon as Gene Lundy
- 2017 · The Orville as Olix
- 2017 · The Truth Is in the Stars as Self
- 2017 · The Marvelous Mrs. Maisel as Asher Friedman
- 2016 · The Mark Lembeck Technique as Mark Lembeck
- 2016 · Best Worst Thing That Ever Could Have Happened... as Self
- 2016 · The $100,000 Pyramid as Self
- 2016 · Match Game as Self - Panelist
- 2016 · To Tell the Truth as Self - Panelist
- 2015 · The Grinder as Cliff Bemis
- 2015 · The Late Show with Stephen Colbert as Self - Guest
- 2015 · China, Il The Musical as Harold
- 2015 · Larry Gaye: Renegade Male Flight Attendant as Larry's Dad
- 2015 · The Late Late Show with James Corden as Self
- 2015 · Wild Card as Pinky
- 2014 · Penn Zero: Part-Time Hero as Coach Wallace (voice)
- 2014 · The Tom and Jerry Show as Rick (voice)
- 2014 · TripTank as Doctor (voice)
- 2014 · Late Night with Seth Meyers as Self - Guest
- 2013 · Hollywood Game Night as Self
- 2013 · Drunk History as William Tweed
- 2012 · Comedians in Cars Getting Coffee as Self
- 2012 · Comedy Bang! Bang! as Inspector Gantlet
- 2012 · Say It Ain't Solo as Self
- 2011 · The Voyages of Young Doctor Dolittle as Eugene (voice)
- 2011 · Talking Dead as Self
- 2011 · China, IL as Harold (voice)
- 2011 · Dora the Explorer: Dora's Enchanted Forest Adventures as Owl (voice)
- 2011 · Franklin & Bash as Carter Lang
- 2011 · Harry's Law as Richard Cross
- 2010 · Not Your Time as Sid Rosenthal
- 2010 · Quantum Quest: A Cassini Space Odyssey as Moronic (voice)
- 2010 · Fish Hooks as Mr. Nibbles
- 2010 · Fish Hooks as Mr. Nibbles (voice)
- 2010 · The Marriage Ref as Self - Panelist
- 2009 · The Cleveland Show as
- 2009 · Community as Mountain Man
- 2009 · Hachi: A Dog's Tale as Carl
- 2008 · Shatner's Raw Nerve as Self
- 2007 · Jerry Seinfeld: Submarine Captain as Self
- 2006 · Rachael Ray as Self - Guest
- 2006 · Comedy Central Roast of William Shatner as Self - Roastmaster
- 2006 · How to Go Out on a Date in Queens as Johnny
- 2006 · The New Adventures of Old Christine as Dr. Palmer
- 2005 · Criminal Minds as Prof. Rothchild
- 2005 · Everybody Hates Chris as Principal Edwards
- 2005 · Robot Chicken as Krampus (voice)
- 2005 · American Dad! as Mr. Orlando (voice)
- 2005 · American Dad! as Sal (voice)
- 2005 · The Late Late Show with Craig Ferguson as Self
- 2004 · A Christmas Carol as Jacob Marley / Marley's Ghost
- 2004 · The Seinfeld Story as Self
- 2004 · Kramer vs. Kramer: Kenny to Cosmo as Self
- 2004 · Seinfeld: How It Began as Self/George Costanza
- 2004 · Listen Up! as Tony Kleinman
- 2004 · The Tony Danza Show as Self - Guest
- 2003 · Two and a Half Men as Dr. Goodman
- 2003 · The Ellen DeGeneres Show as Self
- 2003 · The Very Best of America's Funniest Comedians as Self (archive footage)
- 2003 · Real Time with Bill Maher as Self
- 2003 · Jimmy Kimmel Live! as Self
- 2002 · The Man Who Saved Christmas as A.C. Gilbert
- 2002 · The Twilight Zone as Patient
- 2002 · Monk as Marty Eels
- 2001 · Being 'Shallow Hal' as Self
- 2001 · Shallow Hal as Mauricio Wilson
- 2001 · Good Day Live as Self
- 2001 · The Legend of Tarzan as Zutho (voice)
- 2001 · Primetime Glick as
- 2001 · Bravo Profiles: Penn and Teller as Self
- 2000 · Let's Rap Fire Safety as
- 1999 · Ultimate Trek: Star Trek's Greatest Moments as Host
- 1999 · Larry David: Curb Your Enthusiasm as Self
- 1998 · Titey as Titey (voice)
- 1995 · Bye Bye Birdie as Albert J. Peterson
- Future · Broadway: The Next Generation as Self
- 2001 · On Edge as Zamboni Phil
- 2001 · Disney's House of Mouse as
- 2000 · Curb Your Enthusiasm as Jason Alexander
- 2000 · The Huntress as
- 2000 · Son of the Beach as
- 2000 · Malcolm in the Middle as Leonard
- 1999 · The N.Y. Friars Club Roast of Jerry Stiller as Self - Roastmaster
- 1999 · Love and Action in Chicago as Frank Bonner
- 1999 · The Late Late Show with Craig Kilborn as Self - Guest
- 1999 · Sideshow: Alive on the Inside as Narrator
- 1999 · Dilbert as Catbert (voice)
- 1998 · Hollywood Squares as Self - Panelist
- 1998 · Hercules as Poseidon
- 1998 · Hercules as Poseidon (voice)
- 1998 · Denial as Art Witz
- 1997 · Love! Valour! Compassion! as Buzz Hauser
- 1996 · The Hunchback of Notre Dame as Gargoyle Hugo (voice)
- 1996 · The Making of Disney's The Hunchback of Notre Dame as
- 1996 · Muppets Tonight as Self
- 1996 · Remember WENN as Alan Ballinger
- 1995 · For Better or Worse as Michael Makeshift
- 1995 · Star Trek: Voyager as Kurros
- 1995 · A Tribute to Stephen Sondheim as
- 1994 · The Return of Jafar as Abis Mal - the Chief of the Thieves (voice)
- 1994 · Friends as Earl
- 1994 · Down on the Waterfront as
- 1994 · Duckman as Duckman (voice)
- 1994 · Aladdin as Abis Mal (voice)
- 1994 · Aladdin as Captain Albatross (voice)
- 1994 · Aladdin as Abis Mal / Abnor Mal (voice)
- 1993 · The Nanny as Jack
- 1993 · Sexual Healing as Frank
- 1993 · For Goodness Sake as Electronics Store Customer
- 1992 · The Larry Sanders Show as Jason Alexander
- 1992 · I Don't Buy Kisses Anymore as Bernie Fishbine
- 1991 · Dinosaurs as Grown Baby (voice)
- 1991 · Dinosaurs as Stu (voice)
- 1991 · Dinosaurs as Gus Molehill (voice)
- 1991 · Dinosaurs as The Job Wizard (voice)
- 1991 · Dinosaurs as General H. Norman Conquest (voice)
- 1991 · Dinosaurs as Sexual Harris (voice)
- 1991 · Dinosaurs as UFO! Host / Announcer (voice)
- 1990 · Jacob's Ladder as Geary
- 1990 · White Palace as Neil
- 1990 · Dream On as Randall Townsend
- 1990 · Pretty Woman as Philip Stuckey
- 1989 · The Simpsons as Bourbon Verlander (voice)
- 1989 · Seinfeld as George Costanza
- 1988 · LIVE with Kelly and Mark as Self - Guest
- 1986 · Rockabye as Lt. Ernest Foy
- 1984 · E/R as Harold Stickley
- 1984 · E/R as
- 1984 · Jeopardy! as Self
- 1983 · Reading Rainbow as Self - Narrator (voice)
- 1982 · Newhart as
- 1982 · Late Night with David Letterman as Self
- 1981 · Senior Trip as Pete
- 1975 · Saturday Night Live as Self - Host
- 1975 · Saturday Night Live as Self - Cameo (uncredited)
- 1975 · Saturday Night Live as Titey (voice)
- 1975 · People's Choice Awards as Self - Host
- 1956 · Tony Awards as Self - Presenter
- 1944 · Golden Globe Awards as Self - Nominee
- Future · The Sisters Rosensweig as Mervyn