• Thomas as Bolt (Thomas and Bolt are both the main stars)
  • Emily as Mittens
  • Percy as Rhino
  • Mavis as Penny
  • Molly as Penny's Mom
  • James as Penny's Father
  • Diesel  as Dr. Calico
  • Rosie as Young Penny
  • Skarloey, Peter Sam, and Sir Handel as The Pigeons
  • Spencer as The Agents
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