In 1991, Cavanaugh voiced Gosalyn Mallard, the title character's adopted daughter on Disney's Darkwing Duck as well as the voice of Chuckie Finster on the Nickelodeon cartoon Rugrats and later, in 1994, the voice of Oblina, one of the three main monster-students on Aaahh!!! Real Monsters. Cavanaugh can also be heard on The Critic as the voice of Marty, Jay Sherman's son, along with Nancy Cartwright, who would be _her_ replacement as Chuckie Finster later in 2002. <sep>, Pronoun: her