The Ballast Spreader/The Little Engine That Could

Cast

 * Millie as Tille (Millie and Tillie  are both Blue and end with ie)
 * Isobella as Georgia
 * Hector as Farnsworth
 * Paxton as Pete (Paxton and Pete both start with P)
 * Harold as Jebidiah
 * Oliver as Doc
 * The Ballast Spreader as Chip
 * Peter Sam as Eric
 * Daisy as Jill
 * Tower (from The Little Engine That Could) as Himself
 * Duck as Rollo the Clown
 * Henry as Perky the Baby Elephant
 * Edward as Strech
 * Emma (from Casey Jr. and Friends) as Missy
 * Stephen as Chippers
 * Elizabeth as Grumpella
 * Ferdinand as Handy Pandy
 * Migthy Mac as The Giraffes
 * Kelly, Jack, Alfie, Byron, Percy, Harvey, Den, Victor, Donald and Douglas as Cake Carrying Mice/Toy Soildrs/Teddy Bears
 * D199 as The Big Wolf
 * Captain as The Little Wolf
 * Diesel 10 as The Eagle
 * George as The Voice Inside The Cave