Actor Jason Alexander portrayed nebbishy George Costanza on the hit '90s sitcom Seinfeld. Before starring on the show, he was primarily a theatrical actor, winning a 1989 Tony Award for Best Actor for the musical Jerome Robbins' Broadway.

1. Born September 23, 1959 in Newark, New Jersey
2. Birth Name: Jason Scott Greenspan
3. Spouse: Daena Title
4. College: Boston University
5. Adopted the stage name "Jason Alexander" while in high school
6. Originally wanted to work as a magician
7. Credited with coining the term "asshat"

After a theatrical career that included appearances in Merrily We Roll Along and Broadway Bound, Alexander was cast in Seinfeld in 1989. While working on that show, he also voiced the lead character in the USA animated series Duckman.

Since Seinfeld left the air in 1998, Alexander has returned to the stage, starring in the Los Angeles run of the Mel Brooks musical The Producers and directing an upcoming revival of Damn Yankees.

He tried to launch another sitcom post-Seinfeld, called Bob Patterson, but it was canceled after 5 episodes. Alexander has appeared on the shows The New Adventures of Old Christine and Curb Your Enthusiasm alongside his own Seinfeld castmates Julia Louis-Dreyfus and Larry David, respectively.

Actor Jason Alexander portrayed nebbishy George Costanza on the hit '90s sitcom Seinfeld. Before starring on the show, he was primarily a theatrical actor, winning a 1989 Tony Award for Best Actor for the musical Jerome Robbins' Broadway.

1. Born September 23, 1959 in Newark, New Jersey

2. Birth Name: Jason Scott Greenspan

3. Spouse: Daena Title

4. College: Boston University

5. Adopted the stage name "Jason Alexander" while in high school

6. Originally wanted to work as a magician

7. Credited with coining the term "asshat"

</small> After a theatrical career that included appearances in Merrily We Roll Along and Broadway Bound, Alexander was cast in Seinfeld in 1989. While working on that show, he also voiced the lead character in the USA animated series Duckman.

Since Seinfeld left the air in 1998, Alexander has returned to the stage, starring in the Los Angeles run of the Mel Brooks musical The Producers and directing an upcoming revival of Damn Yankees.

He tried to launch another sitcom post-Seinfeld, called Bob Patterson, but it was canceled after 5 episodes. Alexander has appeared on the shows The New Adventures of Old Christine and Curb Your Enthusiasm alongside his own Seinfeld castmates Julia Louis-Dreyfus and Larry David, respectively. </note>

• Note: The majority of the links in this timeline are to IMDb, which has pop-ups.

• September 23, 1959: Born

• 1984: E/R

• 1986: Brighton Beach Memoirs

• 1989-1998: Seinfeld

• 1990: Pretty Woman

• 1992: I Don't Buy Kisses Anymore

• 1993: Coneheads

• 1994: Blankman

• 2000: The Adventures Of Rocky & Bullwinkle

• 2001: Shallow Hal

• 2002: The Man Who Saved Christmas

• 2004: A Christmas Carol

• 2005: Monk

• 2006: How To Go Out On A Date In Queens

• 2007: The Grand

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