Special Guest Stars Eva Marie Saint voices Katara 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 Alex McKenna voices Senna Jeff Bennett voices Engineer Jeff Bennett voices Carnival Barker Amy Hill voices Acolyte James Sie voices Abbot Shung