We know the first and last names of Jerry Seinfeld, George Costanza, and Elaine Benes, but throughout "Seinfeld," Kramer is just called Kramer. It makes sense that we know little about Kramer's identity because he is so strange. Based on "Seinfeld" co-creator Larry David's eccentric neighbor Kenny Kramerhe is someone who keeps walking into Jerry's apartment and has no traditional job outside of his forbidden schemes and get-rich-quick ideas. In the "Seinfeld" pilot, he is called Kessler, then in Season 9, Episode 8, "The Betrayal", Kramer jokingly describes it as his speaker's fault.

Little is revealed about Kramer's backstory until Season 6, Episode 11, "The Switch," where we are introduced to his mother, Babs Kramer. She works as a bathroom attendant in an upscale restaurant. Although Babs has a strained relationship with her son, George asks her to spy on his girlfriend, who has an eating disorder, to see if she, he says, flushes his money down the toilet after meals. It is Babs who then reveals Kramer's real, full name to George: Cosmo Kramer. George gleefully reports this to the rest of the gang, who joke about how they (like the audience) have been trying to figure out Kramer's real name for years. They laugh about how absurd the name is, and Cosmo really is perfect for such a strange character. However, he was originally going to have a much different (and much less funky) name.

in 2014, "Seinfeld" writer and eventual "Borat" director Larry Charles said ScreenCrush that Cosmo Kramer was originally supposed to be Konrad Kramer. The name sounds a bit similar to Cosmo, but Konrad has a more refined quality and is certainly no laughing matter. Charles admitted that he was thinking of Conrad Birdie from Bye Bye Bird, a character who is equal parts attention eater and responsible for a lot of chaos all around him. His name was to be revealed in the second season episode "The Bet", which the "Seinfeld" cast and crew ultimately refused to film.

From this The controversial "Seinfeld" script has since been leaked.now we know that the plot revolves around Elaine wanting to buy a gun to feel safe in the city. At one point, she buys a fake gun to fool Jerry, pointing it at him and saying, "I'm going to blow your brains out," before Jerry asks if she'll give him "Kennedy" or "Lincoln." "Seinfeld" characters can be crude and their actions cruel, but this was too much. Charles was disappointed that the episode "fell by the wayside", his chosen name Za Kramer also sounds like everything is for the best not only that "Seinfeld" was able to avoid an episode involving gunplay in a way that feels very outside out of character and too sadistic for the series. also, Kramer ends up with a wonderfully funny name that really suits him.