Guest Stars Matthew Yang King voices Appa Matthew Yang King voices Momo Ruy Iskandar as Lieutenant Jee Elizabeth Yu as Azula Arden Cho as June François Chau as The Great Sage C.S. Lee as Avatar Roku James Rha as Shyu Co Starring Ash Lee as Shufen Kimmy Choi as Yuyan Archer Captain Thomas Hum as Crew Member Ciara Mandel as Lian Victor Young as Pohuai Sentry Kevan Ohtsji as General Li Ryan Lino as Aide De Camp Cyril Redillas as Military Advisor Wenke Song as Pohuai Guard Jacky Zeng as Cart Driver Yuanze Toth as Shi-Yong