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=216128" Categories: Characters One-time characters All Grown Up! All Grown Up! characters Females Humans Community content is available under CC-BY-SA unless otherwise noted.