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.

1994 • TV

2005 • TV

2003 • TV

1989 • TV

1990 • Movie

2009 • Movie
as Philip Stuckey
as Carl
as Ted / Wingman
as Gargoyle Hugo (voice)
as North's Dad
as Pinky
as Mauricio Wilson
as Jayda's Dad (voice)
as Self
as Hardware Clerk
as Michael Makeshift
as Lightning (voice)
as Buzz Hauser
as Abis Mal - the Chief of the Thieves (voice)
as Geary
as Gargoyle Hugo (voice)
as Larry Farber
as Neil
as Lionel
as Penguin on Belly (voz)
Executive Producer
Director
Director
Executive Producer
as Earl
1 episodes
as Mr. Orlando (voice)
1 episodes
as Dr. Goodman
1 episodes
as George Costanza
180 episodes
as Marty Eels
1 episodes
as Self - Guest
1 episodes
as Kurros
1 episodes
as Self
1 episodes
as Self - Host
1 episodes
as Mountain Man
1 episodes
as Self
1 episodes
as Grown Baby (voice)
1 episodes
as Principal Edwards
2 episodes
as Poseidon
1 episodes
as Self
2 episodes
as Self
1 episodes
as Mr. Nibbles
as Self - Guest
3 episodes
1 episodes
Director
Director
Director
Director
Director
Creator
Executive Producer
Writer
Director
Creator