They usually set up camp in the middle of The City park, where they hold their UFO Conventions. The Saucer Morons made their first and only appearance in Attack of the Saucer Morons as a collective, but individual members are scattered throughout other episodes.
An "adult version" of Dib appeared amongst the group when Zim's disguise was torn off, and could also be seen in the tent with an undisguised Zim. His head was swallowed by the Pig-disguised Voot Carrier, and was body slammed by it when Zim tackled Trudy and the controls.
Leader of the group, he "interprets alien messages". He holds the conventions and is an odd, old man. He shares a striking resemblance to the evil scientist Dr. Neo Cortex from the Crash Bandicoot franchise. Voiced by Fred Tatasciore.
A man who "foretold the prophecy" of Zim coming to them. He is based on a staff member of the Invader ZIM crew; better known as the actor who played TV's Frank on Mystery Science Theatre 3000.
Jhonen Vasquez made a cameo in this episode as one of the Saucer Morons. He is found about eight minutes into the episode, when the Saucer Morons bow down to Zim, and again when he leaves the tent with GIR.
A burly woman who ensures the security of the "artifacts". Voiced by Mary Scheer.
A scrawny and pidgeon toed lady who left her husband to commune with the Blotch in Mysterious Mysteries. Zim shoved her off of the Voot Carrier and into a pond when she tried to come with him during his escape. Voiced by Mary Scheer.Starchunk
A brute of a man who manages the initiation rites.
A seemingly middle aged balding fat man, who only wears his boxer shorts and a green tank top. He asked Zim to "bless the corns on his toes" after Frank reiterates his prophecy. Voiced by Frank Conniff