'Full House' 25 Years Later: What You Never Knew About the Iconic Show
Mary-Kate and Ashley Olsen
Observant fans could tell whether it was Mary-Kate or Ashley appearing in any given scene. Although they are very similar looking, they are not actually identical. The fraternal twins have a few
differences. Mary-Kate is left-handed and Ashley is a righty. Plus, Ashley has a freckle above her lip.