Guest Stars Megan Hilty voices Shar Megan Nicole Dong voices Kale Dee Bradley Baker voices Puffintaur Dee Bradley Baker voices Muskoxtaur Chris Diamantopoulos voices Gophertaur Fred Armisen voices Message Bird Fred Armisen voices Malandrew Parvesh Cheena voices Moletaur Backup Singers Chris Diamantopoulos voices Hyenataur Chris Diamantopoulos voices Zimples Chris Diamantopoulos voices Sean-Anemone Chris Diamantopoulos voices Horsatio Chris Diamantopoulos voices Narwhaltaur Kimiko Glenn voices Horsatia Maria Bamford voices Maitre D Maria Bamford voices Opposumtaur Megan Hilty voices Moletaur Backup Singers Jessie Mueller voices Moosetaur Jessie Mueller voices Walrustaur 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