The Cosmic Adventures of Stella is an American animated science fiction-comedy television series, being created by Amy Keating Rogers. It is produced by Cartoon Network Studios and has premiered on Cartoon Network on June 3rd, 2019.


  • Actor Allusion: Grey Griffin voices a baby (Orion) in this show. This isn't the first time she voiced one though.
  • Adorkable: Stan and Gary.
  • Alien Animals: The show has a lot of them, including Firgu.
  • Aliens Speaking English: Basically, everyone (except the alien animals) in the show speaks English despite not knowing about Earth. Lance Aston even pointed that out one time.
  • All-Loving Hero: Stella qualifies as this.
  • All Just A Dream: At the end of Time Has Come, it was revealed that the apocalypse that happened in that episode was nothing more than part of Stella's dream.
  • Bad Future: Stella vs. Future Stella was about Stella confronting her dystopian future self who plans on taking over the world.
  • Badass Adorable: Stella became this in Stella's dream in Time Has Come.
  • Berserk Button: Dr. Armadeus Smellyfoot will get ticked if you call him by his last name.
  • Big Brother Bully: Gender-inverted by Halley, who picks on Stella.
  • Black Bead Eyes: The Sodias (like Stella) has these, along with some alien animals (like Firgu).
  • Bland-Name Product: TBD
  • Butt-Monkey: Due to his inventions constantly backfiring, Dr. Smellyfoot could count as one.
  • Cloudcuckoolander: Delilah is this at times.
  • Deadpan Snarker: Felix and Dixie.
  • Emo: Felix.
  • Expy: Fans thought of Halley as an expy of Lori Loud from The Loud House due to their similar attitude.
  • Fish People: The Fishpeople in Fishpeople.
  • "Freaky Friday" Flip: This happens in The Big-oo Switcheroo, when Dr. Smellyfoot's invention, which was originally made to switch minds of certain rodents, malfunctions and causes various characters to switch bodies, with the subjects being Stella, Firgu, Halley, Orion, Felix, The Che-Star Duo, Hedgy, The Crazy One, and even... Dr. Smellyfoot himself.
  • Friend to All Living Things: Stella.
  • Getting Crap Past the Radar: The series has these moments throughout the show. Examples included:
  • Girlish Pigtails: Stella had these.
  • Heterosexual Life-Partners: Chester and Stan.
  • Humanoid Aliens: Everyone on Stella's planet (except the alien animals).
  • Intergenerational Friendship: Dr. Armadeus Smellyfoot (and Leggard) and Stella are shown to be good friends.
  • Jerkass:
    • Chester.
    • Taylor.
  • Jerk with a Heart of Gold:
    • Halley is known for not getting along with Stella. Despite her aggressiveness towards Stella, she does show care for her.
    • Dr. Smellyfoot is shown to sometimes get cranky, bossy, and impatient at times, especially at other scientists (sometimes including Leggard), though he still shows care for them.
    • While Felix may be seen as a completely grumpy person who has no emotion, he does indeed have moments where he reveals his soft side.
    • Dixie is rather snarky and snobby towards others, but there has been moments where it shows that she does sympathize with people.
  • Likes Older Women: Chester is shown to grow crushes on teenage/young adult women (especially Halley), mainly done for laughs.
  • Nice Girl: Stella is this.
  • Precocious Crush: See Likes Older Women.
  • Punny Name: The names, Halley and Orion, are based on cosmic space objects, with the former being named after Halley's comet and the latter being named after the constellation of the same name.
  • Ship Tease: TBD
  • Shout-Out: Firgu becoming a ghost after the apocalypse (Stella's dream) in Time Has Come is a reference to The Legacy of Abigail.
    • In Stella and the Astronaut, while unintentionally making his new ship teleport to random places in space in an attempt to get Lance Aston home, while Dr. Smellyfoot and Leggard made it to Earth, they realize they're in the wrong place after encountering a tribe of Watermelon Stevens, who make a brief cameo.
    • In The Nova Brothers, while Pete was trying to get to Stella, he accidentally bumps into an alien man who pretty much resembles Johnny Bravo.
    • In The Bigger, The Better, Chester and Stan's were making graffiti around a random building. One of the graffiti was Mao Mao's head.
  • Sibling Rivalry: Stella and Halley.
  • Sick Episode: Too Sick and partially Clones, Just What I Need.
  • The Comically Serious: TBD
  • The Fashionista: Dixie.
  • The Full Name Adventures: The Cosmic Adventures of Stella.
  • The Ditz: Delilah is somewhat this.
  • The Rival: In An Old Rival, it is revealed that Dr. Armadeus Smellyfoot and Leggard had their own rivals, Dr. Luna and Sirius, who are also scientists.
  • Thicker Than Water: Stella and Halley has a rather unhealthy relationship. However, whenever either one of them is feeling down, they do at least try to comfort each other.
  • Those Two Guys: Chester and Stan.
  • Two-Timer Date: TBD
  • Unfortunate Names: Dr. Armadeus Smellyfoot.
  • Vocal Dissonance: While the other kids such as Stella, Chester and Stan, Gary, etc. tend to have voices that would sound kid-like, Felix's voice sounds rather deep.
  • You Mean "Xmas": The characters in TCAoS celebrate holidays that have rather different names, but are similar to holidays on Earth. For example:
    • Creesowl Day is shown to be very similar to Halloween.
    • Time of the Blessed is shown to be very similar to Christmas.
    • Sympathy Day has shown to be similar to Valentine's Day.


  • Channel Hop: The show's streaming rights moved from Hulu to HBO Max on May 2020.
  • Children Voicing Children: Ashor Bishop (a child) voices Brian (who is also a child).
  • Cross-Dressing Voices: Chester and Stan are voiced by females even though they're males.
  • Dawson Casting: The majority of children/teens in this show are voiced by adults.
  • Descended Creator: Amy was featured to be The Gigaworm, the main antagonist of Time Has Come.
  • Fan Nickname: TBD
  • The Danza: Tara, Stella's clone, is named after Tara Strong.
  • What Could Have Been: According to one of Amy Keating Rogers' tweets, she originally had an idea of making Stella the only child in her family and Dr. Armadeus Smellyfoot to work independently.


  • Base-Breaking Character:
    • TBD
  • Crossover Ship: Fans of both this and Dexter's Laboratory often shipped Stella with Dexter.
  • Ensemble Dark Horse:
    • TBD
  • Fandom Rivalry: Fans have shown a hatred to the 2016 Powerpuff Girls, for obvious reasons.
  • Foe Yay Shipping: A bunch of fans of this show ship Stella with Chester and/or Stan.
  • Friendly Fandoms:
    • Fans of The Powerpuff Girls have shown to adore TCAoS due to its cuteness. It helps that its creator formerly worked on it and that a lead character in both shows (Bubbles and Stella) is voiced by Tara Strong.
      • Same goes for fans of Foster's Home for Imaginary Friends, Wander Over Yonder, and Eric and Claire, since they are also created by Craig, which Amy worked for.
    • Fans of My Little Pony: Friendship is Magic loved TCAoS too, since Amy used to work on MLP:FiM. Also, like Stella, Tara voices the series' protagonist Twilight Sparkle as well.
    • Fans of The Loud House have shown interest in TCAoS.
    • The Cryptids, especially those whose favorite character is Alien, adores the character, Stella, and would draw fan art of Alien and Stella in random situations.
    • Fans of SpongeBob and Chowder have shown to enjoy TCAoS and get along with fans of it and vice-versa.
    • Fans of this and The Tales of the Paintders seem to have a healthy relationship with each other.
    • Fans of this have shown to have a healthy relationship with fans of The Face Paint World Life.
  • Germans Love David Hasselhoff: People in Japan and South Korea have shown to love TCAoS, due to its cuteness.
  • Girl-Show Ghetto: TCAoS managed to avoid it mainly due to the plotlines and occasional humor, considering the fact that there are plenty of male fans of this show.
  • Ho Yay Shipping:
    • Fans ship Stella and Delilah with each other.
    • Some people ship Dr. Smellyfoot and Leggard with each other.
  • Incest Yay Shipping: A few fans ship Stella/Halley... yes, that ship exists. Although, it is controversial due to the fact that Halley is 17 and Stella is 8-9 and due to it being incest.
  • Launcher of a Thousand Ships: Stella herself, as she gets shipped with various characters.
  • Memetic Mutation: TBD
  • Memetic Psychopath: In October 2019, people started to make memes where Stella, who is a rather friendly character, tortures people for fun.
  • Ron the Death Eater:
    • Some infamous fanfics tend to make Halley worse than she already is in the show.
    • Stella, especially by the meme community, is often portrayed in fanfiction as a psychopathic serial killer.
  • Ship-to-Ship Combat: Shipping fans have argued whether which couple for Stella is better: Stella/Gary, Stella/Felix, Stella/Brian and even... Stella/Chester and/or Stan.
  • Tastes Like Diabetes: The show is probably one of the cutest Cartoon Network originals ever made, mainly due to the characters' design.
  • X Meets Y: TBD meets TBD.


These are fan theories for The Cosmic Adventures of Stella.

  • Stella's planet was actually once Earth and centuries after an apocalyptic event, Stella's species from a different planet began invading it along with other creatures.
    • However, this has been debunked since the show featured Earth in Stella and the Astronaut, therefore they are different planets, given the fact that this was made up prior to the episode's premiere.


  • Any moment with The Crazy One, as he is considered one of the funniest recurring characters in the show.



Nightmare Fuel

  • The Gigaworm's appearance might frighten some really young viewers.

Ho Yay

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