Dora Winifred "D.W." Read is a preschooler who's the younger sister of Arthur and the older sister of Kate. She is the middle child in the Read family. Despite her superficial appearance, D.W. is often annoying to Arthur and he often seems to dislike her (he considers her a pest and once warned Sue Ellen that her initials stand for "Disaster Warning"; D.W. later adopts DisasterWarning99 as her username for Virtual Goose). Sometimes, she takes pleasure in getting Arthur in trouble.