In 1997, she appeared in the ABC sitcom Teen Angel. She has a main role in the television films Au Pair (film) (1999), Au Pair II (2001), and Au Pair 3: Adventure in Paradise (2009). She also makes a small appearance in the 1999 film Joseph and the Amazing Technicolor Dreamcoat, wearing an azure skirt and headband. Katie also plays Brink's little sister in the Disney Channel original movie, Brink! In her earlier years she made a small appearance as Uh-Huh's girlfriend at the end of the film Little Rascals.