Guest Stars Dee Bradley Baker voices additional voices Mark Hamill voices Fire Lord Ozai André Sogliuzzo voices Hakoda André Sogliuzzo voices additional voices Richard McGonagle voices Bato Kevin Michael Richardson voices additional voices Michael Dow voices Haru Daniel Samonas voices Teo Mark Hamill voices additional voices Kevin Michael Richardson voices Tyro René Auberjonois voices Mechanist Wayne Duvall voices Warden Poon Kristoffer Tabori voices War Minister