Guest Stars Jeff Bennett voices Shiro Shinobi Logan Wells voices Meelo Darcy Rose Byrnes voices Ikki Maria Bamford voices Pema Aubrey Plaza voices Eska Aaron Himelstein voices Desna Dee Bradley Baker voices Bum-Ju Dante Basco voices General Iroh Jonathan Adams voices Vaatu Spencer Garrett voices Raiko April Stewart voices Raava Jonathan Adams voices Unavaatu Steven Yeun voices Wan