Kristen Schaal is an American artist, voice actress, writer, and comedian. She was born on January 24, 1978 in Colorado. She is best known for her roles as Mel in the series Flight of the Conchords, Mabel Pines in Gravity Falls, Carol Pilbasian in The Last Man on Earth, and Louise in Bob's Burgers. She does the voice of Jake Jr. in the series Adventure Time.