Guest Stars Dee Bradley Baker voices additional voices André Sogliuzzo voices Hakoda Richard McGonagle voices Bato Kevin Michael Richardson voices additional voices Daniel Samonas voices Teo Michael Dow voices Haru René Auberjonois voices Mechanist Kevin Michael Richardson voices Tyro Wayne Duvall voices Warden Poon Sterling Young voices Pipsqueak Nick Swoboda voices The Duke Carlos Alazraqui voices additional voices Carlos Alazraqui voices Tho Carlos Alazraqui voices Due Mick Foley voices The Boulder William Bassett voices Swampmoster Serena Williams voices Ming William Bassett voices Huu Barbara Goodson voices additional voices