Elizabeth Ann Guttman (born September 11, 1961), credited as E. G. Daily and sometimes Elizabeth Daily, is an American actress, voice actress and singer known for her portrayal of voicing Tommy Pickles in the Nickelodeon series Rugrats, its spin-off All Grown Up! and in the Rugrats film series. She also provided the voice of Buttercup in Cartoon Network's The Powerpuff Girls and the title pig in the live-action feature film Babe: Pig in the City.