Halloween Costume Guide
Campion survives on Kepler-22b, argues about eating meat, and is the only one of Mother’s six original children who did not die from radiation exposure. He was raised entirely by two androids, which explains a lot about how he talks and a surprising amount about who he becomes. He is played by Winta McGrath in the HBO Max series Raised by Wolves, created by Aaron Guzikowski (Wikipedia). The show ran two seasons before being cancelled in 2022, which is worth knowing before you commit to a costume that depends on recognition.
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The lace-up shirt is what people will notice first, and it needs to look worn rather than new. If you pull it straight from the packaging and put it on, it will read as a Renaissance fair costume. Wash it once before the party, do not iron it, and wear it with the laces slightly loose at the top. If the shirt looks too crisp, the rest of the build suffers for it. The whole point of Campion’s look is that clothing was never anyone’s priority on Kepler-22b.
There is a scene where Campion explains to the other children, with complete sincerity, that killing and eating the creatures is wrong, and nobody should do it, and they should all eat fungus instead. He is twelve, he has been raised by two androids, and he is not asking. That is Campion at the party. He will absolutely tell you his opinions about the food if you give him an opening.
Distress the shirt before you go out
Linen wrinkles easily, which is useful here. After washing, ball the shirt up for a few hours instead of hanging it to dry. The natural creasing reads as lived-in rather than costume. Campion has been on Kepler-22b his whole life. His shirt has never been near an iron and it shows. A too-crisp linen shirt at a Halloween party looks like you bought it that day, which is accurate, but not in the right way.
This costume needs Mother to be recognized
Solo, this reads as a medieval or post-apocalyptic child costume to anyone who has not watched the show. At a general party in 2026 that is most people. Going as a pair with someone in the Mother costume changes this entirely. The android mother and her frontier son is a combination that lands even for people who only half-watched the show. If you are going alone, know that you will be explaining the costume a fair amount.
Couples Idea
Might work, but only for people who made it to Season 2. Vrille is an android girl Campion develops feelings for, and the dynamic is genuinely interesting in the show. As a couples costume, the recognition window is very small. Most people who watched Season 1 did not continue, and most people who did not watch the show at all will see two vaguely medieval kids. If both of you know the characters well and can explain them, it’s a conversation-starter costume. Vrille has no dedicated page on CostumeRealm.
Duo Idea
Excellent duo for exactly this reason: Mother’s grey contact lenses do half the recognition work for both costumes. The android in grey next to the earthy frontier boy she raised on another planet reads clearly to anyone who knows the show, and unsettlingly interesting to anyone who does not. This is the pairing I would actually recommend if you are building around Campion. One person anchors the look; the other adds the narrative.
Group Idea: Raised by Wolves Cast
Strong group for a convention or a party where everyone in the room watched the show. At a general Halloween party in 2026, the Raised by Wolves cast is a niche reference. Mother is the most visually striking of the group and will carry the most recognition. Marcus and Sue have pages on CostumeRealm; Father does not, so that costume requires someone building from scratch. With five characters present, even people unfamiliar with the show will understand it is a group concept, which helps.
Group Idea: Iconic Sci-Fi Kids & Young Survivors
Strong group concept because every costume here is individually recognizable, which solves Campion’s recognition problem. Eleven, Hiccup, Coraline, and Percy all have broad enough audiences that the group makes sense even if one or two people do not know every character. Campion is the most niche of the five, but in a group this visually varied, the differences between the costumes tell the story. The one practical note: this group works better at a party with mixed age ranges. Everyone will know at least two of these characters.
This costume has no hard pieces, no props, no accessories that require special sourcing. It is entirely fabric. The difficulty is making it look appropriately worn and functional rather than like a kid who dressed up as a medieval peasant.
Campion was raised by two androids who speak like children’s television presenters having a disagreement about theology. He absorbed both of them. He is earnest, slightly formal, and will not be moved on the meat question.
Campion is a build-from-scratch costume: medieval linen pants, a lace-up linen shirt, a loose linen cardigan, and a short wavy brown wig. The key is keeping everything earthy, worn, and slightly too practical for a child who grew up on an alien planet with no fashion input whatsoever.
Honestly, this is a niche pick. The show was cancelled in 2022 and has limited streaming availability, so most people at a general Halloween party will read this as a vaguely medieval kid costume, not Campion specifically. It works best at a convention or with a group where at least Mother is present to anchor the reference.
His most memorable line is a voiceover about Mother: “I know I’m not safe with her now. But I guess I never was. That part of her was always in there, hiding. Maybe there’s something hiding inside of me, too.” It is the most honest thing anyone says in the entire show.
Campion is played by Australian actor Winta McGrath, known for his role in the 2014 film Aloft. He appears in all ten episodes of Season 1. The character is named after Campion Sturges, the atheist engineer who built and programmed Mother and Father.
All five of Campion’s siblings died from radiation exposure on Kepler-22b. Campion was the only one of Mother’s original six children who could withstand the planet’s conditions. The show treats his survival less as a chosen-one moment and more as a biological fact that nobody fully understands, which is deliberate.
Not anymore. The ready-made costume that used to be available is no longer in stock. The build covered in this guide uses individual pieces: medieval linen pants, a lace-up linen shirt, a linen cardigan, and a brown wavy wig. It takes more effort than buying a single package, but the individual pieces cost less and work better anyway.
Vrille is an android girl Campion meets in Season 2. He develops genuine feelings for her, which is one of the more interesting things the show does with the nature versus nurture theme. Being raised by androids, Campion sees no meaningful difference between Vrille and a human. His parents would probably have a lot of thoughts about that.