Unlike Tommy, Chuckie is clumsy and timid; he rarely expresses any desire to go on one of the babies' adventures, instead listing all the reasons they should not go on one, and, whenever Angelica tries to bully them, he unquestionably accepts her treatment and gives into her demands, if she has any. Chuckie is two years old, making him the eldest of the babies, and so, he is the first of them to be toilet trained.