For Disney, she played Chyna Parks in the Disney Channel Original Series A.N.T. Farm from 2011 to 2014. She also played Isabel in the Hannah Montana episode "Welcome to the Bungle", Kiara Tyshanna in the Jonas L.A. episode "The Secret", Tina in the Wizards of Waverly Place episode "Wizards vs. Angels", and guest starred as herself in the PrankStars episode "Game Showed Up". McClain has a lead role in the Disney Channel Original Movie, How to Build a Better Boy. She and her sisters, Sierra and Lauryn, are also known for forming the group, McClain Sisters. She plays Uma in Descendants 2, where she had previously voiced Freddie Facilier in the first season of Descendants: Wicked World. She also plays Sheena in K.C. Undercover.
- Both she and Descendents co-star Cameron Boyce previously made early debuts in the Grown Ups films, McClain as Chris Rock's daughter, Boyce as one of Adam Sandler's sons.