<Ul> <Li> John Travolta as Bolt </Li> <Li> Susie Essman as Mittens </Li> <Li> Mark Walton as Rhino </Li> <Li> Miley Cyrus as Penny <Ul> <Li> Chloë Grace Moretz as Young Penny </Li> </Ul> </Li> <Li> Malcolm McDowell as Dr. Calico </Li> <Li> Nick Swardson as Blake </Li> <Li> Diedrich Bader as Veteran Cat </Li> <Li> Greg Germann as The Agent </Li> <Li> James Lipton as The Director </Li> <Li> Randy Savage as Thug </Li> <Li> Kari Wahlgren as Mindy </Li> <Li> Grey DeLisle as Penny's Mother </Li> <Li> J.P. Manoux as Tom </Li> <Li> Brian Stepanek as Martin </Li> <Li> Jeff Bennett as Lloyd </Li> <Li> John DiMaggio as Saul </Li> <Li> Jenny Lewis as Assistant Director </Li> </Ul> <Li> John Travolta as Bolt </Li> <Li> Susie Essman as Mittens </Li> <Li> Mark Walton as Rhino </Li>

Who plays the voice of mittens in bolt