Thomas "Tommy" Pickles is a fictional character that appears in the Nickelodeon animated television series Rugrats and its spin-off All Grown Up! as the protagonist of the shows. He is voiced by E.G. Daily and first appeared on television in the Rugrats episode "Tommy's First Birthday". Tommy was created by Arlene Klasky and designed by Gábor Csupó. Klasky was taking care of her fifteen-month-old son when the idea of a show about a one-year-old's point of view came to her, the day before she, Csupó, and Paul Germain were scheduled to pitch a show to Nickelodeon for their Nicktoons series. The character is named after Germain's son. Tommy is the eldest son of Stu and Didi, and the brother of Dil. Tommy's most prominent character traits are his bravery, kindess, and loyalty. He has appeared in other media relating to Rugrats, including video games, films, and comic strips. Hallmarks of the character include his all-purpose screwdriver and his catchphrases "A baby's gotta do what a baby's gotta do!" and "Hang on to your diapies babies, we're going in." In the unaired and released on DVD Rugrats pilot episode, Tommy was voiced by Tami Holbrook.