Guest Stars Dee Bradley Baker voices additional voices Cricket Leigh voices Mai Olivia Hack voices Ty Lee Mark Hamill voices Fire Lord Ozai Zach Throne voices additional voices Grey DeLisle Griffin voices additional voices Jason Miller voices additional voices Jen Cohn voices Ursa Susan Eisenberg voices Sela Paul Nakauchi voices additional voices Brian O'Neill voices Gansu John Garry voices additional voices Gary Anthony Sturgis voices Gow Walker Edmiston voices Azulon Robby D. Bruce voices Lee Elijah Runcorn voices Young Zuko