Actress Jennifer Beals was born in Chicago, Illinois to Alfred Beals, who owned a grocery store, and Jeanne, an elementary school teacher. Her father was African-American and her mother was Irish. According to Hollywood rumor, after the success of "Flashdance," Beals was the new 'it' girl in town until a Hollywood executive was informed that she was bi-racial. This is an unsubstantiated rumor but Beals' career did come to an abrupt halt after "Flashdance." Beals has never discussed her ethnicity publicly.
Before the film "Purple Rain," was released, it was revealed that Prince was half-Italian. In the movie, based on his life, he even went so far as to hire a white actress to portray his mother. In real life, Prince's mother (Mattie) is black, as well as his father (John). Prince also has a fully black sister named Tyka, a half-sister named Sharon and two stepbrothers who he has never discussed publicly.
Tai Babilonia was the first figure skater of partial African-American descent to win U.S. and World titles. She is also part Filipino via her paternal family and part Native American. In the late 70's and early 80's, however, her mixed ethnic ancestry was rarely discussed by the media and it remained hidden until the late 80's.
Actor Vin Diesel has always refused to reveal his ethnicity and has never admitted to having black blood. Allegedly, he is half-black and half-Italian but you didn't hear it from Diesel.