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