Kristen Schaal

Kristen Joy Schaal (/ʃɑːl/; born January 24, 1978) is an American actress, voice actress, comedian, and writer. She is best known for her voice roles as Louise Belcher on Bob's Burgers and Mabel Pines on Gravity Falls, as well as for playing Mel on Flight of the Conchords, Hurshe Heartshe on The Heart, She Holler and Carol Pilbasian on The Last Man on Earth. She provides several voices for BoJack Horseman, most notably for the character of Sarah Lynn, for which she was nominated for a Primetime Emmy Award for Outstanding Character Voice-Over Performance.