Iridessa is one of the main characters in the Disney Fairies franchise. She is a dark-skinned talented light fairy and is the first to talk discomfort about Tinker Bell not wanting to accept her job as a tinker.
Vote which fictional character would naturally fit in-universe with a big-named franchise! No time-travel, no interdimensional crap, no "Pooh's Adventures", they would just exist in-universe.