Guest Stars Matthew Yang King voices Appa Matthew Yang King voices Momo Ruy Iskandar as Lieutenant Jee Elizabeth Yu as Azula Utkarsh Ambudkar as King Bumi Momona Tamada as Ty Lee Ryan Mah as Lt. Dang Thalia Tran as Mai Danny Pudi as Sai Sebastian Amoruso as Jet Lucien-River Chauhan as Teo Co Starring James Sie as Cabbage Merchant Rainbow Dickerson as Kya Osric Chau as Tan Tim Zhang as Grocer Vincent Huang as Pipsqueak Christopher Logan as Omashu Guard Asia Mattu as Omashu Mother Nipun Joshi as Omashu Townsperson Ragini Kapil as Omashu Merchant Mohammed Imran Ali as Old Man Nathaniel Kong as Longshot Wes Valarao as Smellerbee Moheb Jindran as Omashu Guard Kelvin Lum as Cloaked Firebender Dayah Brar as Omashu Daughter Taylor Lam Wright as The Duke Paul Kular as Omashu Merchant Colin Foo as Pai Sho Vendor