She was once known as the brainy Olive Doyle on Disney Channel’s A.N.T. Farm, but Sierra McCormick looks completely unrecognizable today. Now 27, the former child star has undergone a jaw ...

Sierra McCormick created the role of prodigy student Olive Doyle on the show A.N.T. Farm when she was in eighth grade. Now fifteen, McCormick has made the role her own, and has made nerds a little ...