 Thomas Malcolm Pickles (E. G. Daily) is the child of Stuart "Stu" Pickles, an inventor, and Diane "Didi" Pickles (nee Kropotkin), a schoolteacher, and serves as the series' protagonist.Many episodes take place in the Pickles family home and are centered around him and his family.In the series' pilot, "Tommy's First Birthday", he is a year old and presumably, he remains that age throughout the entirety of the show's run, despite hitting developmental milestones; he is the youngest of the babies until the birth of his brother, Dylan, in "The Rugrats Movie" (1998).