The Pupa from Solar Opposites is the cutest doomsday weapon on television. It looks like a harmless neon slug that says “ow” and toddles around after candy. It is also a living supercomputer carrying all of planet Shlorp’s data, destined to grow up and devour the Earth.
That contrast is the whole joke, and it works every single time.
Among the aliens who crash-landed in this Hulu comedy, the Pupa is the one they are all sworn to protect. The Pupa from Solar Opposites barely speaks, yet it runs one of the show’s best long-game subplots.
Name: The Pupa (Terry calls it “Pupes”)
What it is: An organic Shlorpian supercomputer in slug form
Mission: To mature, then reshape Earth into a new planet Shlorp
Voiced by: Sagan McMahan (and Liam Cunningham for one episode)
Known for: Changing color, eating anything, and quietly watching the Wall
Who Is The Pupa from Solar Opposites?
The Pupa is the fifth member of the household, sitting apart from the four Shlorpian adults and replicants. Korvo and the others fled their destroyed home planet with one job: keep the Pupa safe until it matures.
That job comes with a catch. Inside its DNA sits every scrap of data from Shlorp, and when it fully grows, it will consume the planet and rebuild it as a new Shlorp.
The adorable slug in the living room is a countdown to the apocalypse, and the family mostly treats it like a needy pet.
A Silent Revolution
The Pupa gets its own wordless side-adventures, and they are some of my favorite bits in the show. These solo missions show off two things: it is nearly indestructible, and it can eat almost anything.
The running gag of the Pupa swallowing objects, furniture, and the occasional living creature is played for laughs. It also keeps reminding you of the horror underneath.
This tiny thing is a dormant powerhouse, and everyone in the house is one bad day away from remembering that.
The Pupa’s Appearance and Colors
The Pupa is a slug-shaped creature with big saucer eyes, and it started out yellow. That color does not stay put. As it inches toward maturity, it shifts through yellow, orange, pink, purple, green, and blue, so its skin doubles as a progress bar for the end of the world.
The best part is that specific colors mean specific, very silly things:
- Robin’s Egg Blue: the family is about to get a free Xbox.
- Navy Blue: their Hulu plan is expiring.
- Cornflower Blue: someone in the house had a sex dream about someone else in the house.
- Royal Blue: the aliens have kennel cough.
- Pacific Blue: the worst one, meaning the family is going to die.
It can even blink yellow, which the ship’s computer explains simply means it lost its wi-fi signal.
Fact-check trivia: The show always calls the Pupa’s process “terraforming,” but that word is technically wrong. Terraforming means making a planet more like Earth. The Pupa does the opposite, remaking Earth into an alien world. The accurate term would be “xenoforming.”
More Than Comic Relief
On the surface, the Pupa is just there for silent punchlines. Look closer and it is often the smartest one in the room. Its favorite hobby is spying on the Wall, the shrunken human society that Yumyulack keeps in his bedroom.
It watches the Wall the way the rest of us binge a prestige drama.
In one memorable moment, it films Tim and Cherie during a private moment on its smartphone. For a creature that acts like a baby, it clearly understands far more than it lets on.
The Pupa’s Personality
The Pupa’s intelligence flickers on and off. Most of the time it behaves like a curious infant or a hungry pet. Then, out of nowhere, it flashes real cunning, and sometimes real cruelty.
Its softer side is just as real, though. The Pupa clearly loves its weird little family.
It once painted a mural of everyone on the ceiling and got teary-eyed when it finished. That mix of menace and mush is exactly why it is the show’s secret MVP.
Did you know? The Pupa is obsessed with a battery-powered Harry Potter wand whistle. It goes to absurd lengths to get it back whenever it is taken away, including reuniting a father and son and even entering a woman’s dream to act as her therapist. The family cannot figure out how it keeps retrieving the toy.
A Deeper Dive
There is a real theme buried under the slime. The Pupa is part of the family, yet it lives completely apart from their day-to-day Earth lives. It is the ultimate outsider even inside its own group.
The show mines that quietly. Without a single line of dialogue, the Pupa shares real emotional beats with the audience. It is proof that you do not need words to build a character people care about, which is a neat trick for a walking apocalypse.
Weird Pupa facts: It is not allowed candy because sugar makes it sick. According to Jesse, it takes thousands of years to digest anything it eats. And its favorite snack may be chalupas, which apparently have the same nutritional value as replicant meat. Read that last one twice.
The Pupa vs the Crows
The best showcase for the brutal side of The Pupa from Solar Opposites is the season 1 episode “The Unstable Grey Hole.” It wanders into the woods, gets swarmed by a murder of crows, and does not back down.
When one bird lunges, the Pupa beats it to death with a stick and wears its bare skull as a crown while the rest scatter.
It looks like a medieval war trophy. The punchline is that this whole grisly quest, including cloning a man’s leg, was just an elaborate scheme to knock candy out of a vending machine.
It even saves Cherie later by ripping another crow in half, so the birds really should have spread the word.
Why Did The Pupa Turn Blue?
This is where the color code turns deadly. In the season 2 finale, “The Solar Opposites Almost Get An Xbox,” the Pupa goes Pacific Blue. Per its own swatch chart, that means the whole family will die by midnight.
The aliens react by first destroying their belongings, then trying to kill each other for a final rush of meaning.
They do die, then resurrect as trees, and the Pupa calmly eats the fruit they grow. Later, in “The Fog of Pupa,” the family’s neglectful parenting taints its evolution and turns it into an angsty teenage fog monster, which forces them to grow up a little themselves.
Tyler’s take: The Pupa is the best sight gag on the show turned into an actual character. It should be nightmare fuel, a doomsday device growing quietly in a kid’s bedroom. Instead it is the thing I find myself rooting for. Any show can write a villain. It takes real skill to make the end of the world adorable.
Who Voices The Pupa in Solar Opposites?
The Pupa is voiced by Sagan McMahan, who supplies most of its gurgles, coos, and that infant-like “ow.” Actor Liam Cunningham also voiced it for the single season 1 episode “Retrace-Your-Step-Alizer.”
There is not much dialogue to work with, so the performance is all texture.
The baby-soft noises are what make the crow murder and the doomsday clock land as comedy instead of horror, and that contrast is the entire point of the character.
You can see the full voice cast on IMDb.
Is The Pupa from Solar Opposites a favorite of yours?
Drop a comment and let me know.