Icy is a witch who has been described as having a "heart of ice" and the eldest member of the Trix (a trio of witches) to which she is the leader where she wishes to rule the universe. Icy, as her name infers, is a cold type of person, and often acts cruel for the sake of being cruel to the point of being the cruelest, most vindictive one out of the Trix. She tends to act rude and ridicules people she does not approve of and her temper tends to get the better of her when things do not go her way.