Jason Alexander was born on September 23, 1959 in Newark,
New Jersey.
Jason Scott Greenspan is Jason Alexander's birth name.
Jason Greenspan adopted the stage name Jason Alexander while
still in high school in New Jersey. He also goes by the nickname
Jay. High school acting credits for Jason include the shows
GUYS AND DOLLS, THE ODD COUPLE and OLIVER.
Starting in 1990 Jason Alexander was give the role for the
hit TV series, SEINFELD, from 1990 to 1998 playing George
Costanza. While filming SEINFELD (1990-1998), Alexander was
always fitted with a suit one size too small, to make his
character look uncool.
In 1989 Jason won Broadway's Tony Award as Best Actor (Musical)
for JEROME ROBBINS' BROADWAY.
Having an extensive knowledge of the classic original STAR
TREK television episodes, Jason Alexander had perfectly passed
a series of Star Trek skill testing questions on the "Howard
Stern" show. Jason is a great fan of STAR TREK, he was finally
given the opportunity to play a "Trek" role himself in 1999:
he played the character "Kurros" in the STAR TREK: VOYAGE
episode THINK TANK.
Jason Alexander's other notable credits include...
