Toy Story That Time Forgot
Ray-Gon first appears when Reptillus Maximus brings Trixie to the Armory to have her suited up. Ray-Gon is very admirative of Trixie, and lets her put on everything she wants. He is then instructed by the Cleric to outfit Rex with the "Supplicators", with Rex unaware they can be remote-controlled.
Later, Ray-Gon is present at the Arena of Woe, where he activates the Goliathon. Soon after, Ray-Gon hands the remote control of the Supplicators to the Cleric at his request, although he does so with much muttering, seeming to disapprove it.