Rewind·Posted on Feb 18, 2018If You Know All 15 Of These Times Shows Tried To Slip A Re-Cast Past Us You Are An Official SavantMy, Aunt Viv, you've changed!by Morgan ShanahanSenior Parenting EditorLinkFacebookPinterestTwitterMailBuzzFeed Quiz Party! Take this quiz with friends in real time and compare resultsCheck it out! Contrary to Hollywood belief, actors are not interchangeable. Which is why it's always kind of awkward when characters are replaced by new performers in the blink of an eye. But how fast did you blink? Do you remember who played whom first?