Inspiration. The character of Kramer was originally based on the real-life Kenny Kramer, a neighbor of co-creator Larry David from New York. However, Michael Richards did not in any way base his performance on the real Kramer, to the point of refusing to meet him.

Is Elaine Benes based on a real person?

Real-life inspiration

According to Seinfeld's biography (written by Jerry Oppenheimer), Elaine was based in part on Susan McNabb (who was dating Seinfeld when the character was created), though eventually named after friend and fellow comic Elayne Boosler.

Who is George Costanza based on?

He resembles so many grumpy New Yorkers—but, allegedly, he's based on one New Yorker in particular, Jerry Seinfeld's former pal Michael Costanza.