Michael Richards among other things appeared in the following:
Cheers episode-Sam's old bet that he would sell the bar if he didn't
marry Jackie Bisset
UHF-he was Stanley the janitor come TV star of Weird Al's network
Problem Child-he was the bad guy
Night Court cameo
Short lived tv series some years ago with Dana Carvey
Hate to tell you this...but you are not that somebody.
Kramer's first name is spelled Cosmo, not Kosmo. Closed Captioning proves this..it comes directly from the script from NBC. Watch the show in C.C. sometime, and you'll see what I mean.
Just because Kramer's last name starts with a "K" doesn't mean his last name does...or do you think the rest of the stars' names are