$45 Million. Michael Richards net worth: Michael Richards is an American actor who has a net worth of $45 million.Michael Anthony Richards was born July 24, 1949 in Culver City, California. He is an American actor and comedian, best known for his role as Cosmo Kramer on the hit 90's sitcom Seinfeld.45 Million. Michael Richards net worth: Michael Richards is an American actor who has a net worth of $45 million. Michael Anthony Richards was born July 24, 1949 in Culver City, California.