Catherine is one of the students of Priscilla Magic Academy, also known as The First Lady of Westerina.
Catherine, like Diaspro, is a spoiled and spiteful sorcery. She is also greedy and acts as if she knew everything. Catherine is very jealous with Cornelia because Cornelia is princess and more popular for her kindness, courage and one of the successors of Winx Club.
According to the rumours which people in Westerina said, Catherine is a daughter of an extremely greedy gold miner who bribed to be a mayor and let her be The First Lady of a city..