Jason Alexander Jason Alexander

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Actor Bio

Jason Alexander (born September 23, 1959) is an American actor, comedian 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. Alexander was born Jason Scott Greenspan in Newark, New Jersey, the son of Jewish parents Ruth Minnie (née Simon), a nurse and health care administrator, and Alexander B. Greenspan, an accounting manager. He has a half-sister, Karen Van Horn, and a half-brother, Michael Greenspan. Alexander is a 1977 graduate of Livingston High School in Livingston, New Jersey....

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