From Wikipedia, the free encyclopedia. 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.
Movie | To the Journey - Looking Back at Star Trek: Voyager | self | 2025 |
Series | Saturday TV Funhouse | Titey (voice) | 2025 |
Movie | Leo | Jayda's Dad (voice) | 2023-11-17 |
Movie | Dick Van Dyke: 98 Years of Magic | Self - Performer | 2023-12-21 |
Movie | Out of Office | 2022-09-05 | |
Movie | Broadway: Beyond the Golden Age | Self | 2021-08-14 |
Movie | The Rocky Horror Musical Live Stream | Narrator | 2020-10-31 |
Movie | Take Me to the World: A Sondheim 90th Birthday Celebration | Self | 2020-04-26 |
Movie | Faith Based | Nicky Steele | 2020-10-09 |
Series | Harley Quinn | Sy Borgman (voice) | 2019-11-29 |
Movie | Bucky and the Squirrels | Jason Alexander | 2018-01-26 |
Series | Hit the Road | Ken Swallow | 2017-10-17 |
Movie | The Truth Is in the Stars | Self | 2017-05-01 |
Movie | The Mark Lembeck Technique | Mark Lembeck | 2016-12-02 |
Movie | Best Worst Thing That Ever Could Have Happened... | Himself | 2016-10-09 |
Movie | For the Love of Spock | Himself | 2016-09-09 |
Movie | Tom and Jerry: Back to Oz | Mr. Bibb / The Nome King (voice) | 2016-06-21 |
Movie | The Last Laugh | Self | 2016-04-18 |
Movie | The Gettysburg Address | Noah Brooks (voice) | 2015-01-01 |
Movie | Wild Card | Pinky | 2015-01-14 |
Series | The Late Late Show with James Corden | Himself | 2015-03-23 |
Movie | Misery Loves Comedy | Self | 2015-01-23 |
Series | Big Time in Hollywood, Fl | Jason Alexander | 2015-03-25 |
Series | The Grinder | Cliff Bemis | 2015-09-29 |
Movie | Larry Gaye: Renegade Male Flight Attendant | Larry's Dad | 2015-06-05 |
Movie | Tom's Restaurant - A Documentary About Everything | 2014-12-22 | |
Movie | How Murray Saved Christmas | Doc Holiday (voice) | 2014-12-05 |
Movie | Lucky Stiff | Vinnie Di Ruzzio | 2014-10-08 |
Series | Drunk History | William Tweed | 2013-07-09 |
Movie | Stars In Shorts | Sid Rosenthal | 2012-09-28 |
Movie | Another Dirty Movie | Self (uncredited) | 2012-04-25 |
Movie | Say It Ain't Solo | Himself | 2012-04-01 |
Series | Franklin & Bash | Carter Lang | 2011-06-01 |
Movie | A Fairly Odd Movie: Grow Up, Timmy Turner! | Cosmo | 2011-07-09 |
Series | Talking Dead | Himself | 2011-10-16 |
Movie | The Voyages of Young Doctor Dolittle | Eugene (voice) | 2011-11-01 |
Series | China, IL | Harold (voice) | 2011-10-02 |
Movie | Quantum Quest: A Cassini Space Odyssey | Moronic (voice) | 2010-09-17 |
Movie | Rock Slyde | Mailman Stan | 2010-05-01 |
Movie | Not Your Time | Sid Rosenthal | 2010-09-24 |
Series | Fish Hooks | Mr. Nibbles | 2010-09-03 |
Series | The Cleveland Show | Unknown | 2009-09-27 |
Series | Community | Mountain Man | 2009-09-17 |
Series | Meteor | Dr. Chetwyn | 2009-07-12 |
Movie | Hachi: A Dog's Tale | Carl | 2009-06-08 |
Series | Step It Up and Dance | Unknown | 2008-04-03 |
Movie | Farce of the Penguins | Penguin on Belly (voice) | 2007-07-14 |
Movie | Jerry Seinfeld: Submarine Captain | Himself | 2007-07-02 |
Movie | The Grand | Dr. Yakov Achmed | 2007-06-07 |
Movie | Ira & Abby | Dr. Morris Saperstein | 2006-06-23 |
Series | The New Adventures of Old Christine | Unknown | 2006-03-13 |
Movie | How to Go Out on a Date in Queens | Johnny | 2006-07-28 |
Movie | Snoop Dogg's Hood of Horror | British Record Mogul | 2006-06-27 |
Series | Talkshow with Spike Feresten | Unknown | 2006-09-16 |
Movie | Comedy Central Roast of William Shatner | Self - Roastmaster | 2006-08-20 |
Movie | Earth to America | self | 2005-11-20 |
Series | Bobobo-bo Bo-bobo | Unknown | 2005-10-01 |
Series | Everybody Hates Chris | Unknown | 2005-09-22 |
Movie | The Aristocrats | Self | 2005-07-29 |
Movie | A Christmas Carol | Jacob Marley / Marley's Ghost | 2004-11-28 |
Movie | Seinfeld: How It Began | Himself/George Costanza | 2004-11-23 |
Series | Listen Up! | Tony Kleinman | 2004-09-20 |
Movie | Stuck on You: It's Funny - The Farrelly Formula | Self | 2004-04-20 |
Series | Jimmy Kimmel Live! | Unknown | 2003-01-26 |
Series | Real Time with Bill Maher | Unknown | 2003-02-21 |
Series | Two and a Half Men | Dr. Goodman | 2003-09-22 |
Series | The Ellen DeGeneres Show | Unknown | 2003-09-08 |
Movie | 101 Dalmatians II: Patch's London Adventure | Lightning (voice) | 2002-11-06 |
Movie | The Hunchback of Notre Dame II | Gargoyle Hugo (voice) | 2002-02-05 |
Movie | The Man Who Saved Christmas | A.C. Gilbert | 2002-12-15 |
Series | The Twilight Zone | Unknown | 2002-09-18 |
Series | Monk | Unknown | 2002-07-12 |
Series | Make Way for Noddy | Clockwork Clown (voice) | 2002-09-02 |
Movie | Shallow Hal | Mauricio | 2001-11-01 |
Series | Bob Patterson | Bob Patterson | 2001-10-02 |
Series | The Legend of Tarzan | Unknown | 2001-09-03 |
Movie | The Trumpet of the Swan | Father (voice) | 2001-05-11 |
Series | Disney's House of Mouse | 2001-01-13 | |
Movie | Being 'Shallow Hal' | Self | 2001-11-06 |
Movie | Let's Rap Fire Safety | 2000-03-09 | |
Series | Son of the Beach | Unknown | 2000-03-14 |
Movie | The Adventures of Rocky & Bullwinkle | Boris | 2000-06-30 |
Series | The Huntress | 2000-07-26 | |
Series | Curb Your Enthusiasm | Unknown | 2000-10-15 |
Movie | Larry David: Curb Your Enthusiasm | Self | 1999-10-17 |
Movie | Love and Action in Chicago | Frank Bonner | 1999-09-15 |
Movie | Madeline: Lost in Paris | Uncle Horst / Henri (voice) | 1999-08-02 |
Series | The Late Late Show with Craig Kilborn | Unknown | 1999-03-30 |
Movie | Sideshow: Alive on the Inside | Narrator | 1999-03-05 |
Movie | Jingle Bells | Elf (Voice) | 1999-01-01 |
Movie | Ultimate Trek: Star Trek's Greatest Moments | Host | 1999-12-01 |
Series | Hercules | Poseidon | 1998-08-31 |
Movie | Titey | Titey (voice) | 1998-05-15 |
Movie | Denial | Art Witz | 1998-01-01 |
Movie | Cinderella | Lionel | 1997-11-02 |
Movie | Sex, Censorship and the Silver Screen | Quote Reader | 1996-01-01 |
Movie | Dunston Checks In | Robert Grant | 1996-01-12 |
Movie | The Hunchback of Notre Dame | Gargoyle Hugo (voice) | 1996-06-21 |
Movie | Bye Bye Birdie | Albert J. Peterson | 1995-12-03 |
Movie | For Better or Worse | Michael Makeshift | 1995-03-19 |
Movie | The Last Supper | Anti-Enviroment | 1995-09-08 |
Movie | North | North's Dad | 1994-07-22 |
Movie | The Return of Jafar | Abis Mal - the Chief of the Thieves (voice) | 1994-05-20 |
Movie | The Paper | Marion Sandusky | 1994-03-18 |
Series | Duckman | Duckman (voice) | 1994-03-05 |
Series | Aladdin | Abis Mal | 1994-02-06 |
Movie | Blankman | Mr. Stone | 1994-08-19 |
Movie | Coneheads | Larry Farber | 1993-07-23 |
Movie | Sexual Healing | Frank | 1993-07-18 |
Movie | I Don't Buy Kisses Anymore | Bernie Fishbine | 1992-04-24 |
Movie | Pretty Woman | Philip Stuckey | 1990-03-23 |
Movie | White Palace | Neil | 1990-10-19 |
Movie | Jacob's Ladder | Geary | 1990-11-02 |
Series | Seinfeld | George Costanza | 1989-07-05 |
Series | LIVE with Kelly and Mark | Unknown | 1988-09-05 |
Series | Favorite Son | Chris Van Allen | 1988-10-30 |
Series | Everything's Relative | Julian Beeby | 1987-10-03 |
Movie | Brighton Beach Memoirs | Pool Player #1 | 1986-12-26 |
Movie | The Mosquito Coast | Hardware Clerk | 1986-11-26 |
Movie | Rockabye | Lt. Ernest Foy | 1986-01-11 |
Series | Newhart | Unknown | 1982-10-02 |
Series | Late Night with David Letterman | Unknown | 1982-02-01 |
Movie | Senior Trip | Pete | 1981-12-30 |
Movie | The Burning | Dave | 1981-05-08 |
Series | Saturday Night Live | Unknown | 1975-10-11 |
Series | The Tonight Show Starring Johnny Carson | Unknown | 1962-10-01 |
Series | The Emmy Awards | Unknown | 1949-01-25 |