Kristen Joy Schaal 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 on The Last Man on Earth.
She also 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. Other roles include Amanda Simmons on The Hotwives of Orlando, Hazel Wassername on 30 Rock, Victoria Best on WordGirl, Trixie in Toy Story 3, and Anne on Wilfred.