8. Greg Louganis
Louganis is of Swedish and Samoan descent.
Louganis wasn't able to compete in the 1980 Olympics that he was favored to win in because of an American boycott, but he would compete in 1984 to win gold medals in the springboard and tower diving events. He would go on to defend both medals in 1988 despite suffering a concussion.
He was named ABC's Wide World of Sports "Athlete of the Year" in 1988.