• Mr. Conductor as Thomas (Ringo Starr's Mr. Conductor would be Thomas in Ringo Starr, Michael Angelis and Mark Moraghan episodes while George Carlin's Mr. Conductor would be Thomas in George Carlin, Alec Baldwin and Michael Brandon episodes)
  • Mr. Nicholas as Edward
  • Barney (from Barney & Friends) as Henry (Barney and Henry are both big and friendly)
  • Billy Twofeathers as Gordon
  • Schemer as James (Not Buster King!)
  • Yoshi (from Mario) as Percy
  • Harry Cupper as Toby (You can't stick with Harry as Henry because you have to stick with Harry as Toby and Barney as Henry)
  • Dan as Duck
  • Tex & Rex as Donald & Douglas
  • Chief Wiggum (from The Simpsons) as Oliver
  • Mr. Conductor's Double as Diesel
  • Tito as BoCo
  • Vickie as Daisy
  • Stacy Jones as Mavis
  • Amazo the Great as Stepney
  • Kara as Emily
  • Buster King as George