Brittany Howard Thelma the Unicorn (voice) Will Forte Otis (voice) Jemaine Clement Vic Diamond (voice) Edi Patterson Megan (voice) Ally Dixon Nikki Narwhal (voice) Fred Armisen Danny Stallion (voice) Zach Galifianakis Crusty Trucker (voice) Jon Heder Reggie (voice) Kristen Schaal Goat Girl (voice) Natalie Morales Penelope Pizazz (voice) Eduardo Franco Goon #2 (voice) Sherry Cola Female Talent Judge (voice) Geno Segers Male Talent Judge (voice) Betsy Sodaro Cow (voice) Shondrella Avery Zirconia (voice) Héctor Jiménez Esteban (voice) James Urbaniak Confused Fan (voice) Phil Hendrie Bald Guy (voice) Jared Hess Gerald (voice) Daran Norris Stable Hand (voice) David Michie Farmer Bob (voice) Michelle Jubilee Gonzalez Goat Farmhand (voice) Matthew Wolf Duck Judge (voice) Scott Whyte Announcer (voice) Roger Craig Smith Garyl (voice) Kimberly Bailey Cheryl (voice) Juan Pacheco Beryl (voice) Eric Bauza Fan Boy (voice) Grey DeLisle Bridget (voice) Scott Menville Raccoon (voice) Krizia Bajos Female News Anchor (voice) John Eric Bentley Rude Fan (voice)