Guest Stars Megan Hilty voices Shar Megan Nicole Dong voices Kale Dee Bradley Baker voices Puffintaur Dee Bradley Baker voices Muskoxtaur Fred Armisen voices Message Bird Fred Armisen voices Malandrew Chris Diamantopoulos voices Gophertaur Parvesh Cheena voices Moletaur Backup Singers Maria Bamford voices Maitre D Maria Bamford voices Opposumtaur Chris Diamantopoulos voices Narwhaltaur Chris Diamantopoulos voices Horsatio Chris Diamantopoulos voices Sean-Anemone Chris Diamantopoulos voices Zimples Chris Diamantopoulos voices Hyenataur Megan Hilty voices Moletaur Backup Singers Kimiko Glenn voices Horsatia Jessie Mueller voices Walrustaur Jessie Mueller voices Moosetaur Megan Nicole Dong voices Moletaur Backup Singers Co Starring Jasper Randall voices Background Vocal Contractor Fletcher Sheridan voices Background Singers Allie Feder voices Background Singers Baraka May Williams voices Background Singers Randy Crenshaw voices Background Singers Toby Chu voices Background Singers Uncredited Tony Hale voices Tony Durpleton