Marin was born Richard Anthony Marin on July 13, 1946 in Los Angeles, California. Marin was married to Darlene Morley from 1975 until they divorced in 1984. They had one child. He was married to Patti Heid from 1986 until they divorced. They had 2 children. He has been married to Natasha Rubin since 2009. Marin lives in Malibu, California. He is Mexican-American.