Guest Stars Matthew Yang King voices Appa Matthew Yang King voices Momo Ruy Iskandar as Lieutenant Jee Elizabeth Yu as Azula Amber Midthunder as Princess Yue Momona Tamada as Ty Lee Ryan Mah as Lt. Dang Thalia Tran as Mai A. Martinez as Master Pakku Irene Bedard as Yagoda Meegwun Fairbrother as Avatar Kuruk Nathaniel Arcand as Chief Arnook Joel Oulette as Hahn Co Starring Taio Gelinas as Trainee Bernie Yao as Head Trainer Calvin Carbonell as Ensign Corvin Mack as Waterbender Chanel Thomas as Little Girl Pat Alec as Injured Warrior Chih-Ping Cheng as Earthbender Prisoner