Jay Scott Greenspan, 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.
Movies
Pretty Woman
Philip Stuckey
Jacob's Ladder
Geary
Blankman
Mr. Stone
The Mosquito Coast
Hardware Clerk
Quantum Quest: A Cassini Space Odyssey
Moronic (voice)
The Burning
Dave
North
North's Dad
The Paper
Marion Sandusky
Farce of the Penguins
Penguin on Belly (voice)
Coneheads
Larry Farber
Shallow Hal
Mauricio
Hachi: A Dog's Tale
Carl
101 Dalmatians II: Patch's London Adventure
Lightning (voice)
A Christmas Carol
Jacob Marley / Marley's Ghost
White Palace
Neil
Bye Bye Birdie
Albert J. Peterson
Cinderella
Lionel
The Aristocrats
Self
Snoop Dogg's Hood of Horror
British Record Mogul
Rock Slyde
Mailman Stan
The Man Who Saved Christmas
A.C. Gilbert
Denial
Art Witz
Love! Valour! Compassion!
Buzz Hauser
Dunston Checks In
Robert Grant
The Adventures of Rocky & Bullwinkle
Boris
A Fairly Odd Movie: Grow Up, Timmy Turner!
Cosmo
I Don't Buy Kisses Anymore
Bernie Fishbine
The Trumpet of the Swan
Father (voice)
How to Go Out on a Date in Queens
Johnny
For Better or Worse
Michael Makeshift
The Voyages of Young Doctor Dolittle
Eugene (voice)
Jerry Seinfeld: Submarine Captain
Himself
Rockabye
Lt. Ernest Foy
Madeline: Lost in Paris
Uncle Horst / Henri (voice)
Down on the Waterfront
Ira & Abby
Dr. Morris Saperstein
The Return of Jafar
Abis Mal - the Chief of the Thieves (voice)
Lucky Stiff
Vinnie Di Ruzzio
Jingle Bells
Elf (Voice)
Misery Loves Comedy
Self
Wild Card
Pinky
Not Your Time
Sid Rosenthal
Comedy Central Roast of William Shatner
Self - Roastmaster
Seinfeld: How It Began
Himself/George Costanza
Larry Gaye: Renegade Male Flight Attendant
Larry's Dad
Sex, Censorship and the Silver Screen
Quote Reader
The Grand
Dr. Yakov Achmed
How Murray Saved Christmas
Doc Holiday (voice)
The Very Best of America's Funniest Comedians
Self (archive footage)
Say It Ain't Solo
Himself
The Hunchback of Notre Dame II
Gargoyle Hugo (voice)
The Hunchback of Notre Dame
Gargoyle Hugo (voice)
For the Love of Spock
Himself
Ultimate Trek: Star Trek's Greatest Moments
Host
Let's Rap Fire Safety
Stars In Shorts
Sid Rosenthal
Best Worst Thing That Ever Could Have Happened...
Self
The Truth Is in the Stars
Self
Bucky and the Squirrels
Jason Alexander
Larry David: Curb Your Enthusiasm
Self
The N.Y. Friars Club Roast of Jerry Stiller
Self - Roastmaster
My Boyfriend's Meds
Dr. Sternbach
Love and Action in Chicago
Frank Bonner
The Portuguese Kid
Barry Dragonetti
Faith Based
Nicky Steele
Senior Trip
Pete
The Gettysburg Address
Noah Brooks (voice)
Richard Lovely
Mr. Mouse
Being 'Shallow Hal'
Self
Tom and Jerry: Back to Oz
Mr. Bibb / The Nome King (voice)
The Rocky Horror Musical Live Stream
Narrator
The Sisters Rosensweig
Mervyn
The Mark Lembeck Technique
Mark Lembeck
Broadway: Beyond the Golden Age
Self
The Last Supper
Anti-Enviroment
For Goodness Sake
Electronics Store Customer
The Electric State
Cinderella: The Reunion, A Special Edition of 20/20
Self
To the Journey - Looking Back at Star Trek: Voyager
Self
Out of Office
Earth to America
self
Sideshow: Alive on the Inside
Narrator
Killing Me Softly with His Songs
Self
The Conspiracy
Sexual Healing
Frank
Leo
Jayda's Dad (voice)
Brighton Beach Memoirs
Pool Player #1
Titey
Titey (voice)
There's Something About Romcoms
Self
The Last Laugh
Self
Dick Van Dyke: 98 Years of Magic
Self - Performer
Another Dirty Movie
Self (uncredited)
Broadway: The Next Generation
They're Real & They're Spectacular: Seinfeld Super Fans & The Summer of George
George Costanza (archive footage)
Dora the Explorer: Dora's Enchanted Forest Adventures
Owl (voice)
Shows
Everybody Hates Chris
The Ellen DeGeneres Show
Self
Jimmy Kimmel Live!
Disney's House of Mouse
Aladdin
Abis Mal (voice)
Two and a Half Men
Dr. Goodman
The New Adventures of Old Christine
Dr. Palmer
Muppets Tonight
Self
Bob Patterson
Bob Patterson
Listen Up!
Tony Kleinman
Meteor
Dr. Chetwyn
The Tony Danza Show
Self - Guest
Talkshow with Spike Feresten
Son of the Beach
Dream On
Duckman
Duckman (voice)
Friends
Earl
Monk
Marty Eels
Star Trek: Voyager
Kurros
The Larry Sanders Show
Jason Alexander
The Legend of Tarzan
Zutho (voice)
Hercules
Poseidon
Newhart
Dinosaurs
Grown Baby (voice)
Late Night with David Letterman
Self
The Huntress
E/R
Where My Dogs At?
Step It Up and Dance
The Cleveland Show
Good Day Live
Self
The Late Late Show with Craig Kilborn
Self - Guest
The Emmy Awards
Self
Fish Hooks
Mr. Nibbles
Saturday Night Live
Self - Host
Seinfeld
George Costanza
Critics' Choice Movie Awards
Himself
Community
Mountain Man
Drunk History
William Tweed
The Grinder
Cliff Bemis
Talking Dead
Himself
The Late Late Show with James Corden
Self
Big Time in Hollywood, Fl
Jason Alexander
Hit the Road
Ken Swallow
Kody Kapow
Goji (voice)
Match Game
Self - Panelist
Criminal Minds
Prof. Rothchild
Harley Quinn
Sy Borgman (voice)
Comedians in Cars Getting Coffee
Self
The Orville
Olix
Dilbert
Catbert (voice)
Young Sheldon
Gene Lundy
Robot Chicken
Krampus (voice)
The Simpsons
Bourbon Verlander (voice)
American Dad!
Sal (voice)
Curb Your Enthusiasm
Jason Alexander
Real Time with Bill Maher
Self
Hollywood Game Night
Self
Saturday TV Funhouse
Titey (voice)
Hercules
Poseidon (voice)
To Tell the Truth
Self - Panelist
Malcolm in the Middle
Leonard
E/R
Harold Stickley
Everything's Relative
Julian Beeby
The Late Late Show with Craig Ferguson
Self
The Marriage Ref
Self - Panelist
The Movies That Made Us
Self
Late Night with Seth Meyers
Self
Aladdin
Captain Albatross (voice)
Aladdin
Abis Mal / Abnor Mal (voice)
The Twilight Zone
Patient
Dinosaurs
Stu (voice)
Penn Zero: Part-Time Hero
Coach Wallace (voice)
The Marvelous Mrs. Maisel
Asher Friedman
The $100,000 Pyramid
Self
Dinosaurs
The Job Wizard (voice)
Dinosaurs
Gus Molehill (voice)
Dinosaurs
Sexual Harris (voice)
Dinosaurs
General H. Norman Conquest (voice)
Dinosaurs
UFO! Host / Announcer (voice)
The Conners
Pastor Phil
Rachael Ray
Self - Guest
Star Trek: Prodigy
Doctor Noum (voice)
China, IL
Harold (voice)
Kirstie
Stanford Temple
Primetime Glick
History of the World: Part II
Maurice Cheeks
American Dad!
Mr. Orlando (voice)
Comedy Bang! Bang!
Inspector Gantlet
Favorite Son
Chris Van Allen
The Tom and Jerry Show
Rick (voice)
Hollywood Squares
Self - Panelist
Fish Hooks
Mr. Nibbles (voice)
Tony Awards
Self - Presenter
History of the Sitcom
Self - Actor
Reading Rainbow
Himself - Narrator (voice)
TripTank
Doctor (voice)
Dinner with Dad
Jason Alexander
Shatner's Raw Nerve
Self
Thank God You're Here
Self
Stars in the House
Self
Saturday Night Live
Self - Cameo (uncredited)
Stars in the House
Self - Special Guest
A Capitol Fourth
Self
Mad About You
Jason Alexander