Barney Gumble/Thomas

Cast

 * Barney Gumble as Thomas
 * Radioactive Man as Edward
 * Homer as Henry
 * Mr. Burns as Gordon
 * Superintendent Chalmers as James
 * Database as Percy
 * Hans Moleman as Toby
 * Kent Brockman as Duck
 * Rod Flanders as Donald
 * Todd Flanders as Douglas
 * Michael D'Amico as Oliver
 * Principal Skinner as Diesel
 * Kearney as Bill
 * Dolph as Ben
 * Reverend Lovejoy as BoCo
 * Lucille as Daisy
 * Maggie as Lady
 * Sideshow Mel as Stepney
 * Maude Flanders as Emily
 * Bart as Percy
 * Bleeding Gums Murphy as Salty
 * Colin as Harvey
 * Warrior (from TUGS) as Skarloey
 * Scoop (from Salty's Lighthouse) as Rheneas
 * Zorran (from TUGS) as Sir Handel
 * Ten Cents (from TUGS) as Peter Sam
 * The Goods Engine (from TUGS) as Rusty
 * Bluenose (from TUGS) as Duncan
 * Red Fin (from Salty's Lighthouse) as Duke
 * Blankton (from Theodore Tugboat) as Freddie
 * Burke & Blair (from TUGS) as Mighty Mac
 * Lionel Hutz as Arthur
 * Lisa as Lady
 * Hugo Simpson as Diesel 10
 * Henry (from TTTE) as Sir Topham Hatt
 * Molly (from TTTE) as Lady Hatt
 * Scruff (from TTTE) as Stephen Hatt
 * Madge (from TTTE) as Bridget Hatt
 * Alfred (a fan-made character from TTTE) as The Barber
 * James (from TTTE) as The Angry Policeman
 * Spencer (from TTTE) as Jeremiah Jobling
 * Grandpa Abe as Trevor
 * Russ Cargill as Bulgy
 * Frank Gimes as George
 * Moe as Spencer
 * Agnes Skinner as Caroline
 * Krusty the Clown as Cranky
 * Herman as Scruffey
 * Flynn (from TTTE) as Mr. Percival
 * Big Mac (from TUGS) as Smudger
 * Ned Flanders as Flynn