Apolo Ohno
Apolo Ohno competed in his first Olympic Games in 2002 in Salt Lake City, Utah. He took hoe a silver and a gold. He competed in 2006 and 2010 as well. He won season 4 of Dancing With the Stars and even returned for season 15 in 2012. He retired from speed skating in 2013.
Mary Lou Retton
Women's U.S. gymnastics would not be the same without Mary Lou Retton. She made her Olympic debut in 1984 in LA where she won five medals: two bronze, two silver, and one gold. She was the face of Dairy Queen and Wheaties, among others. Since she retired, she's been working as a fitness ambassador for Nature's Bounty. She also appeared on Dancing With The Stars.