Simplify the following text for a Grade 7 native English-speaking person.
Original: Michael Anthony Richards ( born July 24 , 1949 ) is an American actor , comedian , writer and television producer , best known for his portrayal of the eccentric Cosmo Kramer on the television sitcom Seinfeld .
Simplified: Michael Anthony Richards ( born July 24 , 1949 ) is an American comedy actor . He is best known for playing Cosmo Kramer on the television show Seinfeld .