It really did take two Olsen twins to film Full House. Mary-Kate Olsen and Ashley Olsen famously split the role of Michelle Tanner on the long-running sitcom from the ages of nine months to nine years ...

While twins Mary-Kate and Ashley Olsen are household names (along with their younger sister Elizabeth), their other siblings tend to stay out of the spotlight. The famous pair — who first skyrocketed ...

Kaitlyn Olson and Mary-Kate and Ashley Olsen have all had successful acting careers, although the Olsen twins acted in their youth and Kaitlyn started after college.

Add Yahoo as a preferred source to see more of our stories on Google. As the years went on, Mary-Kate and Ashley became breakout stars, and throughout their childhood, they enjoyed staggering fame and ...