Guest Stars Jane Lynch voices Donna Melissa Fumero voices Sophie Russell Peters voices Aman Sarayu Blue voices Diya Frank Welker voices William Kulap Vilaysack voices Lola Sara Ramírez voices Amber Debby Ryan voices Krista Shay Mitchell voices Brenda Vanessa Williams voices Dr. Perdue Kari Wahlgren voices Evelyn Gary Anthony Williams voices Don Jennifer Hale voices Thorn Stephen Root voices Merle Cogburn Jason Mantzoukas voices Scrappy Kari Wahlgren voices Female News Anchor Melissa Fumero voices Uncle Scoobi Winsome Brown voices Female Librarian Piotr Michael voices Board Member Piotr Michael voices Lion Tamer