Jason Alexander

Jason Alexander (born Jay Scott Greenspan; September 23, 1959) is an American actor, comedian, singer, and director, widely recognized for portraying the neurotic George Costanza on the NBC sitcom Seinfeld from 1989 to 1998. His performance earned him seven consecutive Primetime Emmy Award nominations for Outstanding Supporting Actor in a Comedy Series and four Golden Globe nominations in the same category, though he did not win either award. Prior to Seinfeld, Alexander established himself on Broadway, winning the Tony Award for Best Actor in a Musical in 1989 for his role as the narrator in Jerome Robbins' Broadway.

Alexander's theater career began with the original Broadway production of Stephen Sondheim's Merrily We Roll Along in 1981 and included roles in productions such as The Wiz and Broadway Bound. Beyond stage and television, he has appeared in films including Pretty Woman (1990) and Jacob's Ladder (1990), and provided voice work for animated series like Duckman (1994–1997) and as Lex Luthor in various Superman projects. He has also directed episodes of television shows and commercials, leveraging his multifaceted skills in entertainment.

Jay Scott Greenspan was born on September 23, 1959, in Newark, New Jersey, to Jewish parents Ruth Minnie (née Simon) Greenspan, a nurse and healthcare administrator, and Alexander B. Greenspan, an accounting manager. The family's middle-class circumstances, shaped by their respective careers in healthcare and finance, fostered a home environment valuing practical skills and stability over extravagance.

Greenspan's Jewish cultural upbringing included participation in religious milestones, such as a bar mitzvah at a Conservative synagogue with Orthodox influences, which contributed to his formative sense of ethnic identity without dominating his early pursuits. As a child, he pursued hobbies centered on performance, particularly magic tricks, which he practiced diligently and later described as his initial passion before transitioning to acting. These activities revealed early comedic inclinations through sleight-of-hand routines and audience engagement, though he acknowledged limitations in his magical aptitude that redirected his focus.