The two stayed on the show for eight years, building an empire of kids movies, books, music and their own fashion line along the way.In their teen years, the duo switched over to sex symbols, to the excitement of men's mags everywhere.
After Full House, the sisters starred in two other sitcoms (Two of a Kind and So Little Time) and an animated series (Mary-Kate and Ashley in Action! The former lasted one season while the latter ran for two seasons.
These ventures, combined with an array of licensing deals for their names and likenesses, made Olsen wealthy at a young age.
is an American actress, fashion designer, producer, author, businesswoman and equestrian.
She co-founded luxury fashion brands The Row, Elizabeth and James, and the more affordable lines Olsenboye and Style Mint alongside her fraternal twin sister Ashley Olsen.
In 2004, Olsen's wealth was estimated at 7 million.
Olsen and her sister became co-presidents of Dualstar upon their eighteenth birthday.
But just this week, Ashley earned headlines after she was spotted grabbing lunch with renowned artist George Condo in New York City.
According to Page Six, the pair was holding hands and snuggling as they dined at the So Ho hot spot Balthazar.
"It was obvious something was going on," an onlooker shared with the publication.
"It looked like she was dining with her grandpa, but they were holding hands and snuggling."The outlet also spotted the pair at the Mercer Hotel back in June.
The Olsen twins remained inseparable in the media eye until Mary-Kate's episode of anorexia, which cast her as the more rebellious of the two twins.