Here’s more information on Cozi’s character from the Disney Bits & Pieces pilot, Crystal Sullenger. It’s taken from a Wiki post: https://bitsandpieces.wikia.com/wiki/Crystal_Sullenger
Crystal Sullenger is the sister of Brody, the step-sister of Sticky & Alanna, and the daughter of Jodie. Crystal is a fun, tomboyish girl who does not realize she is quite pretty. She will be portrayed by Cozi Zuehlsdorff.
Awesome!