Sierra McCormick, standing at exactly 5ft 1 (154.9 cm), is an American actress whose petite height defines her vibrant on-screen image and roles. Her diminutive stature perfectly suited the quirky genius Olive Doyle on Disney Channel's A.N.T. Farm, where she had her breakthrough. McCormick's small frame amplifies her larger-than-life attitude in films like Some Kind of Hate, A Nanny for Christmas, and Twisted Sisters, making her a standout in every performance.