Guest Stars Matthew Yang King voices Appa Matthew Yang King voices Momo Ruy Iskandar as Lieutenant Jee Elizabeth Yu as Azula Momona Tamada as Ty Lee Utkarsh Ambudkar as King Bumi 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 Dayah Brar as Omashu Daughter Tim Zhang as Grocer Christopher Logan as Omashu Guard Nipun Joshi as Omashu Townsperson Colin Foo as Pai Sho Vendor Ragini Kapil as Omashu Merchant Mohammed Imran Ali as Old Man Nathaniel Kong as Longshot Wes Valarao as Smellerbee Vincent Huang as Pipsqueak Moheb Jindran as Omashu Guard Kelvin Lum as Cloaked Firebender Asia Mattu as Omashu Mother Taylor Lam Wright as The Duke Paul Kular as Omashu Merchant