Gideon Gleeful

Gideon Charles Gleeful is the main antagonist of Thomas: Gordon Returns.

Thomas: Gordon Returns
After faking a carriage accident, Gordon stumbles upon Gidoen, who in turn for the "help", offers the Engine eyeball-tinis and roast rat. During their meal, Gordon mentions that he has been depressed lately and wants just one day of being a "real engine" again. Hearing this, Gideon offers Gordon a deal of one day of being an Engine in exchange for one day of his childhood. So Gordon signed the contract without knowing that he just signed the day he was born away, and soon finds himself in a twisted, alternate universe in which Sir Topham Hatt never adopted the engines. Sodor is now ruled by King Gideon, who has many witches under his command to do his dirty work.

After a meeting with his inner circle of witches, Gideon has Baba hire a bounty hunter to fight the engine resistance and prevent Gordon from hugging Sir Topham Hatt which would destroy his alternate universe and his empire. The Pied Piper, a bounty hunter who can make anything dance with his flute, is hired and Gideon sends him out with witch reinforcements to fight the engine resistance led by Sir Topham Hatt. The Pied Piper succeeds in making them dance and he captures them all. However, Gordon and Sir Topham Hatt are rescued by Thomas, Percy and James.

As a last resort, Gideon offers any deal (the "Deal of a Lifetime" as he calls it) to whomever turns Gordon in. Once Gordon hears of this, he turns himself in to get this deal, and in return, Gordon has Gideon free all the engines, but not Sir Topham Hatt. He tries to feed them to Hamster, whom has never met Gordon and is now antagonistic in nature, but Thomas and the engine resistance ambush the palace and start a battle with Gideon and his witches.

They eventually defeat Gideon as the dwarf tries to escape on his pet goose Fifi, but by this time, the 24 hours are up and Gordon is starting to disappear. Sir Topham Hatt, who now loves Gordon, hugs him before he vanishes completely. Thus, Gideon's world falls apart, and everything is restored back to normal. Gideon is last seen being held prisoner at the aftermath party before the credits, and Sir Topham Hatt kills Fifi by making him explode by singing a high note. Gideon is also being tormented by the Pied Piper, being forced to dance in his cage.

Henry's Christmas Karaoke
In Henry's Christmas Karaoke, it is shown that Gideon is still imprisoned at the swamp, and most likely will remain there. Gideon is shown re-imprisoned inside his cage, apparently having tried to run away once before, and gets coal in his stocking for Christmas.

Trivia

 * Gideon is the only main villain known to have been left alive by the end of a Thomas movie.
 * His middle name is revealed to be Charles by his father in one scene.
 * He is the only villain not to have a English accent.
 * He could be considered an amalgamation of all the main villains of the previous films.
 * Being short and ruling an empire with an iron fist (in an alternate universe) like Finfwack.
 * Has magical powers and had a business that helped characters alter their fate like the Fairy Gothelmother.
 * And like Prince Charming, had his life ruined by the engines getting adopted by Sir Topham Hatt.
 * He is arguably the darkest and most evil villain in a Thomas film and among the darkest villains in a DreamWorks Animation film.