The Cosmic Adventures of Stella

 is an American animated science fiction-comedy television series, being created by. It is produced by Cartoon Network Studios and has premiered on Cartoon Network on June 3rd, 2019.

Synopsis
This series revolves around a little alien girl named Stella and her alien dog, Firgu, as they spend their lives on their home planet while getting into weird situations.

Main

 * /Stella/ (voiced by Tara Strong) - a smart, little alien girl who loves adventures and is very kind.
 * Firgu (vocal effects by Dee Bradley Baker) - Stella's pet alien dog who follows her around.

Supporting

 * Orion (voiced by Grey Griffin) - a 1-year old alien who is Stella's baby brother.
 * Halley (voiced by Vanessa Marshall) - a 17-year old alien who is Stella's older sister and usually has an unhealthy relationship with Stella, often picking on her and calling her a dork.
 * Unnamed parents of Stella (voiced by Corey Burton and Carolyn Lawrence, respectively) - Stella, Orion, and Halley's parents.
 * Dr. Armadeus Smellyfoot (voiced by Nolan North) - a geeky scientist who has a temper problem. He despises being called by his last name.
 * Leggard (voiced by Eric Bauza) - an alien who is Dr. Armadeus' lab partner.
 * Delilah (voiced by Kari Wahlgren) - a little alien girl who is Stella's best friend.
 * Felix (voiced by Jason Spisak) - an alien boy who is an emo.
 * The Bean Guy (voiced by ) - a strange imp alien who delivers beans that cause people to appear in strange worlds.
 * The Mecha Horse (vocal effects by Frank Welker) - a robot horse that Stella and Firgu encountered.
 * Lance Aston (voiced by Jerry Trainor) - a human astronaut who ended up having his rocket crash onto Stella's home planet.
 * Gary (voiced by Jennifer Hale) - a shy alien boy who Stella made friends with.
 * Hedgy (vocal effects by Frank Welker) - a hedgehog-like creature who Stella and Delilah encountered around their school and was decided to be kept as a pet by Delilah.
 * Kitroo (vocal effects by Tara Strong) - an alien cat who was saved by Stella and Firgu during a flood. He now lives with Patty.
 * Patty (voiced by Ashley Johnson) - a teenage alien girl who became Kitroo's owner.
 * The Crazy One (voiced by ) - an old alien who acts crazy.
 * Golly Gobb (voiced by Jim Meskimen) - a goblin alien who befriended Stella and Firgu.

Antagonists

 * King Cillos (voiced by Fred Tatasciore) - an evil and greedy king from another planet who wanted to take over Stella's home planet.
 * The Giant Robot (voiced by Steven Blum) - a giant robot who was supposed to protect the planet, but due to an electrical problem, it started attacking people and wrecking the planet.
 * Queen Coco (voiced by Ashly Burch) - an alien queen who TBD.
 * The Brain Monster (vocal effects also by Frank Welker) - a brain-like monster who started the whole invasion.
 * The Sneaky Ninja (also voiced by Eric Bauza) - a ninja alien who was the original owner of the sneakers Stella found.
 * TBD (voiced by TBD) - a tween alien who is the leader of his gang, skips school, and came up with the idea to make Stella do dangerous tasks.
 * The Che-Star Duo, consisting of:
 * Chester (voiced by Nancy Cartwright) - a little alien boy who likes to steal things (especially toys and sweets) from other alien kids.
 * Stan (voiced by Candi Milo) - Chester's chubby brother who helps him out and is less smarter than him.
 * Taylor (voiced by Melissa Fahn) - a little alien girl who everyone at her school considers one of the worst bullies in the school.
 * The Gigaworm (voiced by ) - a giant worm-like creature who caused the apocalypse in Stella's dream.
 * TBD (voiced by [female]) - a scientist who is Dr. Smellyfoot's rival.
 * TBD (voiced by [male]) - another scientist who is TBD's partner and Leggard's rival.
 * TBD (voiced by [male]) - another scientist who is TBD's partner and Leggard's rival.

Episodes
See List of The Cosmic Adventures of Stella episodes.

Tropes
See /Tropes.

Trivia

 * In Cocoa Land, Firgu has been shown eating chocolate and somehow lives while in real life, chocolate is poisonous to dogs.
 * It is believed that it has something to do with his alien species, that unlike dogs we see on Earth, the types of dogs Firgu is is immune to chocolate.
 * This series came out the same day Howler premiered.
 * This is the third Cartoon Network series to be created by a woman, with the first one being Steven Universe and the second one being Summer Camp Island.