Cast[]
- Jon Arbuckle as Thomas
- Garfield as Percy
- Dr. Liz Wilson as Emily
- Happy Chapman as Diesel
- Happy's butler as Diesel 10
- Christopher Merllo as Percy
- Mrs. Baker as Mavis
- Little Girl as Rosie
- Raccoon Lodge Member as Sir Topham Hatt
- News Reporter as Edward
- Engineer as Duck
- Louis as BoCo
- Persnikitty as Murdoch
- Nermal as Gordon
- Lucas as Skarloey
- Arlene as Madge
- Dad Rat as Stephen Hatt
- Mom Rat as Bridget Hatt
- Kid Rat #1 as Donald
- Kid Rat #2 as Douglas
- Kid Rat #3 as Salty
- Spanky as Hiro