Brainy Girl is an one-time character from the All Grown Up! episode, "All Broke Up", and she is voiced by Grey DeLisle. Gallery Retrieved from "https://rugrats.fandom.com/wiki/Brainy_Girl?oldid=322498" Categories: Characters One-time characters All Grown Up! All Grown Up! characters Females Humans One show characters Kids Children Kids that are not babies Preteens Jim Jr. Junior High students Characters with glasses Community content is available under CC-BY-SA unless otherwise noted.