After their joint role as Michelle Tanner in Full House came to an end in 1995, Mary-Kate and Ashley Olsen launched major careers in Hollywood. Together, the twins starred in various TV series and iconic teen movies that still live on today.

Aside from the dynamic sister duo, some pretty famous faces starred in their fan-favorite films — like Holiday in the Sun, Billboard Dad, Passport to Paris and more — before making a name for themselves in the entertainment industry. Well-known stars like Troian Bellisario, Riley Smith, Jared Padalecki, Megan Fox, Elizabeth Olsen, Sara Paxton, Austin Nichols and Ethan Peck all appeared in one of the straight-to-DVD flicks. They may be big names with some pretty notable roles now, but back in the day, these actors were just guest-stars.

Scroll through our gallery to uncover all the celebs you forgot starred in Mary-Kate and Ashley movies, and see which roles they played!

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