Ben 10: Omnivers and Avatar

Eclipses and the sky: Because Polyphemus orbits with other moons, solar eclipses are visible almost daily, and several moons can be seen in the sky at the same time. Polyphemus dominates the horizon like a huge planet.

Resources: Rich in unobtanium, a valuable mineral that attracts humans throughout history.
Na'vi name: The natives call her Eywa'eveng (Daughter of Eywa).

Pandora represents a vibrant, dangerous, and wondrous alien paradise where nature is interconnected and almost "alive." It is one of the most detailed and visually stunning worlds ever created.

Pandora is renowned for its extreme biodiversity and bioluminescence. Almost all plants and animals emit their own light, creating magical nightscapes with vibrant colors (blues, violets, reds, etc.). Many life forms are "planimals" (a mixture of plant and animal).

Flora: Giant trees (like the Hometrees), carnivorous plants, luminous ferns, and vegetation that can reach colossal sizes thanks to low gravity and high CO₂ concentration.

Fauna: Includes iconic creatures such as ikran (flying banshees), direhorses (six-legged equines), thanators (ferocious predators), and the gigantic tulkun in the oceans. Many species are dangerous to humans.

Inhabitants: The Na'vi, blue humanoids about 3 meters tall, who live in harmony with nature and connected to the planetary neural network called Eywa (a kind of collective consciousness or "Gaia" of Pandora).

Size and gravity: It has a diameter approximately three-quarters that of Earth and a mass of about half. Its gravity is 20% less than Earth's (around 80% of Earth's). This allows for the growth of giant structures such as enormous trees and floating mountains (Hallelujah Mountains).

Atmosphere: It is denser than Earth's (about 20% denser). It is composed primarily of nitrogen and oxygen, but with high levels of carbon dioxide (>18%), xenon (>5.5%), and some hydrogen sulfide. It is toxic to humans (who need masks or exopacks), although breathable for native life.

Surface: Covered by vast oceans and continents with diverse ecosystems: dense jungles, plains, spectacular mountains, volcanoes, and rivers. It is a wild world, largely unexplored by humans.

Pandora is a habitable moon (not a planet) in the Avatar universe. It orbits the gas giant Polyphemus in the Alpha Centauri A system, about 4.37 light-years from Earth.

Azmuth — The Galvan genius creator of the Omnitrix. Wise, grumpy, and extremely intelligent.

Zed — Rook's loyal pet (looks like a cross between a dog and an alien).

Professor Paradox — An eccentric time traveler who helps with temporal problems.

Gwen's boyfriend and a close friend of Ben's. He's an Osmosian (he can absorb matter and energy). In Omniverse, he's more mature and heroic, though he retains his sarcastic, streetwise personality. He works as a mechanic and sometimes helps the team, but spends most of his time with Gwen at college. He's loyal and powerful in combat.

Ben's cousin. She's an intelligent, mature young woman, talented in magic (Anodite) and an expert in martial arts. In Omniverse, she's in college, so she appears less frequently than in previous series, but she remains a key ally when needed. She has a romantic relationship with Kevin.

Ben and Gwen's grandfather. He is a legendary Plumbers Master (an intergalactic law enforcement organization). Wise, experienced, calm, and with a great sense of humor. In Omniverse, he leads Plumbers operations on Earth and supports Ben with advice and resources. He was an active Plumber in his youth and has a long history with aliens.

Ben's new partner and the series' deuteragonist. He's a Revonnahgander (a humanoid feline alien) from the planet Revonnah, a graduate of the Plumbers' Academy. Unlike Ben, he's very professional, by the book, disciplined, and strategic. He speaks very formally and struggles to understand Ben's idioms and humor. He's an excellent fighter, uses the Proto-Tool (a versatile weapon), and has a pet named Zed. His relationship with Ben is one of "opposites that complement each other," and he becomes one of his best friends.

He is the main protagonist of the entire franchise. A charismatic, brave, somewhat immature, and impulsive boy who wields the Omnitrix, a device that allows him to transform into dozens of aliens with unique powers. In Omniverse, Ben has matured a bit compared to previous series, but he remains a jokester and confident. His mission is to protect Earth and the universe from intergalactic threats. He is the leader of the team and a legendary hero known throughout the galaxy.

Khyber — Intergalactic Hunter.

Malware — Techno-organism (enemy of Feedback).

Psyphon — Vilgax's lieutenant.

Vilgax — Ben's archenemy.

Albedo — Galvan that can transform into negative aliens.

Dr. Animo — Mad Scientist.

Dr. Psychobos — Cerebroid Scientist.

Attea — Princess of Incursea.

Billy Billions — Rival millionaire.

Captain Nemesis — Fallen ex-hero.

Zombozo and the Circus Freaks.

Vreedle Brothers.

Lord Transyl, Zs'Skayr (Ghostfreak) and other galactic monsters.

Incurseans (Emperor Milleous).

Forever Knights.

Rooters (secret group of corrupt plumbers).

Azmuth — Creator of the Omnitrix (Galvan).

Zed — Rook's pet (similar to an alien dog).

Argit — Opportunistic alien porcupine.

Skurd — Parasite that helps Ben (later seasons).

Professor Paradox — Time Traveler.

Esther — Undertown's ally.

Mr. Baumann — Owner of a shop in Bellwood.

Pakmar — Grumpy alien merchant.

Jimmy Jones — Ben's fan.

Kai Green — Ben's romantic interest.

The Plumbers (like Patelliday, Molly Gunther, Blukic, Driba, etc.).

The Secret Saturdays (crossover).

Ben Tennyson — The protagonist, wielder of the Omnitrix.

Rook Blonko — Ben's new partner, a young and by-the-book Revonnahgander plumber.

Max Tennyson — Ben's grandfather, leader of the Plumbers.

Gwen Tennyson — Ben's cousin (appears in several episodes).

Kevin Levin — Gwen's friend and ex-boyfriend (appears recurrently).