There are many types of creatures on Zeenu. They are very different from Earth's. Zeenu inhabitants include monster "cows", two-headed wrestlers, talking food, and evil beasts.
Here is a list of different Zeenu inhabitants and main characters in Planet Sheen.
- Mr. Nesmith, a talking monkey that is really smart and made to replace Jimmy.
- Doppy, a four-eyed blob that looks almost exactly like Carl.
- Dorkus, a grumbly old cloak-wearing villain, who hates Sheen because he destroyed his house.
- Princess Oom, the Emperor's two-headed daughter, who is in love with Sheen.
- Pinter, Dorkus's flying one-eyed sidekick.
- The Emperor, the ruler of Zeenu.
- Aseefa, a yodeling Glimorian princess.
- Chock Chock, Aseefa's pet chocktow.
- Doppy's parents, the mother and father of Doppy
- They may be based on scorpions and cows.