Mayim Hoya Bialik (born December 12, 1975) is an American neuroscientist and actress. She is best known for her lead role as Blossom Russo in the early-1990s NBC sitcom Blossom.
Bialik was born in San Diego, California, the daughter of Barbara, a nursery school director, and John Bialik, a high school drama teacher. Her grandparents emigrated in the late 1930s from Poland and Czechoslovakia/Hungary. Bialik was raised in Reform Judaism.
Bialik started her career as a child actress in the late 1980s. Her early roles included the horror film Pumpkinhead, her first acting job; and guest appearances on The Facts of Life and Beauty and the Beast. She appeared in three episodes of MacGyver as Lisa Woodman. In 1988, she appeared in Beaches (1988), playing Bette Midler's character as a young girl. She was also featured in the video clip of Liberian Girl by Michael Jackson.