Matt Doyle (Jasper), Sydney Shepherd (Agnes), Sydney Shepherd (Gretchen), Andi Alhadeff (Jasper's Mom, Cerberus, Persephone, & Others), Louis Hobson (Jasper's Coach, Cerberus, Mr. Lethe & Others), Evan Woltz (Jasper's Dad, Brutus, Pluto & Others), Brandi Chavonne Massey (Jasper's Counselor, Hathaway, Ammut & Others), Frederick Hagreen (Jasper's Bully Chaz, Cerberus, Loki, the Chuckster & Others), Jared Michael Brown (Jasper's Friend Lewis, Lester, Osiris & Others), Sarah Rose Davis (Jasper's Classmate Missy B, Hel, Beatrix & Others)