The two main characters are
- The Sun, he is literally the sun, from out solar system.
- The Cloud, he is a cloud.
- Maggot Man, who serves as the host or something.
- Star
- Hank, the red star.
- The Unnamed Blue Star
- The Other Unnamed Blue Star
- The Unnamed White Star
- The Oldest Star in all of Existence.
- The Clouds
- Humphrey
- Scotty
- The Grey Cloud (who loves Scotty)
- The oldest Cloud in the Universe
- Squatenfreudy
- Joedgedb
- Dr. Lamprey, a scientist, he created the seedcore, Robo-Sun & Cloud-Tron
- Robo-Sun, a robotic doppleganger of The Sun.
- Cloud-Tron, a robotic doppleganger of the Cloud.
- The YAMS Man, he makes yams.
- The Pollution Clouds
- The Pollution Monster
- Citizens of the Eagle Nebula
- The Eagle Lord, Lord of the Eagle Nebula
- Frabdondentaten, assistant to The Eagle Lord, daddio.
- Asteroids
- King Asteroid, King of the Asteroids.
- The other Asteroids.
- The Crab Lord