Most of the show's main characters made their debut within most, if not all, of the first episodes: Zach Tyler Eisen provided Aang's voice, Mae Whitman as Katara's voice, Jack DeSena as Sokka's voice,[1] Dante Basco as Zuko's voice, Mako as Iroh's voice,[3][12] and Dee Bradley Baker as the voices of both Appa and Momo.[3] Additional supporting characters include Admiral Zhao voiced by Jason Isaacs,[9][13] and Jet voiced by Crawford Wilson.[9][14]