Warner Bros. and Disney/Thomas

Version 1

 * Bugs Bunny (from Looney Tunes) as Thomas
 * as Edward
 * as Henry
 * as Gordon
 * Daffy Duck (from Looney Tunes) as James
 * Br'er Rabbit (from Song of the South) as Percy
 * as Toby
 * as Duck
 * as Donald & Douglas
 * as Oliver
 * Yosemite Sam (from Looney Tunes) as Diesel
 * as Bill & Ben
 * as BoCo
 * as Daisy
 * as Mavis
 * as Stepney
 * Lola Bunny (from Looney Tunes) as Emily
 * as Bertie
 * as Salty
 * as Harvey
 * Gaston & LeFou (from Beauty & The Beast) as Arry & Bert
 * as Fergus
 * Buster Bunny (from Tiny Tune Adventures) as Skarloey
 * Hamton J. Pig (from Tiny Toon Adventures) as Rheneas
 * as Sir Handel
 * as Peter Sam
 * as Rusty
 * Plucky Duck (from Tiny Toon Adventures) as Duncan
 * as Duke
 * as Freddie
 * as Mighty Mac
 * as Arthur
 * as Lady
 * as Diesel 10
 * as Splatter & Dodge
 * as Sir Topham Hatt
 * as Lady Hatt
 * as Terence
 * as Trevor
 * as Toad
 * as Derek
 * as Bulgy
 * as Elizabeth
 * as George
 * as Murdoch
 * as Spencer
 * as Caroline
 * as Cranky
 * as S.C. Ruffey