The Olsen twin’s mary-kate and Ashley were on the TV show full house. They would both take turns playing Michel the little girl. In 1987, at the age of six months, the twins were cast in the role of Michelle tanner on the ABC sitcom full house They began filming at nine months old. In order to comply with child labor laws that set strict limits on how long a child actor may work, the sisters took turns playing the role. The Olsen’s continued to portray Michelle throughout the show's run, which concluded in 1995.