Jason Alexander -- I Didn't Know Who Steinbrenner Was Before 'Seinfeld' Gig

Jason Alexander -- I Didn't Know Who Steinbrenner Was Before 'Seinfeld' Gig

The Real Reason Larry David Portrayed George Steinbrenner on Seinfeld

Larry David Pretending to Quit 'SNL' Led to This 'Seinfeld' Episode

Seinfeld' Fun Facts

Seinfeld was the show that made the nothingness of life completely and hilariously everything, by Nicholas Anthony, Swish Collective

TIL that since Jason Alexander (George Costanza) is a trained Broadway singer, he had to re-record the famous George answering machine song because he sung it too well; Larry David wanted him

Jason Alexander -- What's the Deal with My Seinfeld Impression?

Seinfeld The Secretary (TV Episode 1994) - Jason Alexander as George Costanza - IMDb

Serenity Now: Jerry Stiller's Most Memorable Moments on 'Seinfeld' as Frank Costanza

Seinfeld': Jason Alexander Had No Idea George Costanza was Actually Larry David