Richards agreed to appear on the show, even after Letterman took a comedic jab at "the guy who played Kramer" on the Top Ten list, at the request of his good friend and former co-star Jerry Seinfeld. Jerry was there to promote "Seinfeld" Season 7 on DVD.
As Richards began explaining the "nasty things" said about "Afro-Americans," the audience couldn't help but chuckle. Seinfeld, immediately scolded the crowd, saying "stop laughing, it ain't funny." But the crowd couldn't help themselves.
The confused fans continued to chuckle, and Richards seemingly blamed Letterman for the awkwardness. "I've already heard you make some jokes about it and that's OK, but I'm really busted up about it."
Richards admitted that he may have acted without thinking. "I'm hearing your audience laugh ... and I'm not even sure that this is where I should be addressing the situation."