The Plutonians are two jagged-shaped aliens possibly from the planet Pluto or beyond Pluto.
Oglethorpe (voice of Andy Merrill), the leader, is the obese, orange-colored one who usually comes up with their "plans" for World Domination. Emory (voice of Mike Schatz), his tall green sidekick, who was explained to be partners since college, hooked up by a computer, is the tag-along of Oglethorpe, and usually the one to know when things have gone sour. In "The Last One," Oglethorpe mentions that he went to high school with Ignignokt, mentioning some kind of incident on the bus. Despite this, the Mooninites think that "Plutonians are teh suck", which started Spacecataz. The Plutonians' ship is also, incidentally, Uglor's ship from Space Ghost Coast to Coast. They can be seen in Master Shake's pinball machine in Eggball.
- Emory once lost his keys in a woodchipper, into which he and Oglethorpe went to find them, explaining their bizarre appearance.
- They are named after the 2 universities in Atlanta, where Williams Street created adult swim.
- At a Space Ghost reunion panel in 2011, Andy Merrill mentioned he finished recording lines for Oglethorpe, possibly meaning that they will return in Season 10 or probably go back to Spacecataz, after not appearing since Deleted Scenes, and officially since Season 2.