Last updated: May 26, 2026·🔄 Product links checked and unavailable products replaced with current alternatives for 2026.· By Serdar

Halloween Costume Guide

Dominic Kearney (The Banshees of Inisherin) Halloween Costume Guide

Seven pieces of layered rural Irish clothing from a 1923 island. The cap does most of the talking. The sweater does the rest.

Barry Keoghan The Banshees of Inisherin Irish Oscar Vintage
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Quick Answer: The Dominic Kearney costume is built from layered rural Irish clothing, with the flat cap and chunky sweater doing most of the work.
  • Tweed Flat Cap (essential)
  • Irish Wool Sweater or Cable Knit Sweater (essential)
  • Green Corduroy Jacket
  • Olive Chino Trousers
  • Denim Shirt
  • Oxford Leather Shoes

Dominic Kearney spends most of the film trying to make friends with anyone who will have him, which is harder than it sounds when you live on a small island where everyone already knows you. He is the village oddball, earnest to a fault, dressed in the same layered knitwear and flat cap as everyone else on Inisherin. The film, directed by Martin McDonagh and set during the Irish Civil War in 1923, earned multiple Academy Award nominations including a Best Supporting Actor nod for Barry Keoghan (Wikipedia). The costume has no single hero piece. It is the combination that reads.

Items Total7 Items
DifficultyEasy
Vibe1920s Rural Irish
Cost$50–$120

Dominic Kearney Halloween Costume Items

Dominic Kearney Halloween costume guide infographic showing all seven items: tweed flat cap, corduroy jacket, wool sweater, cable knit, denim shirt, olive trousers, and Oxford shoes

Dominic Kearney Costume Items

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Dominic Kearney Banshees of Inisherin Barry Keoghan Irish Period
  • 1 Green Corduroy JacketThe jacket is the outermost layer and the one that anchors the colour palette. Green corduroy reads period-appropriate without trying too hard. Wear it open over the sweater. If it arrives looking too new, fold and crumple it before you go out.
    See on Amazon
  • 2 Tweed Flat Cap (essential)This is the item that does the most immediate character work. Without it, the rest of the outfit reads as Irish countryside casual. With it, you are a specific person from a specific place and time. Wear it slightly forward rather than pushed back. The flat cap sits low and practical, not jaunty.
    See on Amazon
  • 3 Irish Wool Sweater (essential)Dominic is seen throughout the film in chunky, dark knitwear, and this is the layer that reads as character rather than just clothing. A thin or lightweight sweater will not give the same silhouette. If you order this and it arrives looking neat and structured, that is still fine. The jacket and cap compensate.
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  • 4 Cable Knit SweaterAn alternative to the wool sweater, not a second layer over it. Pick one or the other depending on what you find. The cable knit has a more textured surface that reads well in photos. Either choice works under the corduroy jacket.
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  • 5 Olive Chino TrousersThe olive colour keeps the palette consistent. Check your wardrobe first. Most people own something close enough that buying new is not necessary.
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  • 6 Denim ShirtBase layer under the sweater. Most people already own one. Check your wardrobe first.
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  • 7 Oxford Leather ShoesPeriod-appropriate and practical for a long night. Scuff them before you go out. A spotless Oxford on a 1923 island farmer is a small but noticeable contradiction.
    See on Amazon
Dominic Kearney in The Banshees of Inisherin wearing a red puffy jacket over layered brown and dark knit sweaters, olive trousers and boots, arm around another character on a rocky Irish field

How to Style the Dominic Kearney Halloween Costume

The flat cap is what people clock first, and if it is sitting at the wrong angle the whole costume reads as a generic costume-shop Irishman rather than a specific character. Wear it forward and low. The sweater needs to be chunky enough that it shows bulk under the open jacket; a thin knit under a corduroy jacket looks like a casual outfit, not a layered 1920s one. If everything is too clean, the costume reads as costume. Dominic’s clothes look like he has been wearing them for years because he has been wearing them for years.

There is a scene where Dominic approaches Pádraic with visible excitement because he has just thought of something funny to tell him. He delivers it, and it is not particularly funny. He is delighted anyway. That eagerness, the total absence of self-consciousness, is the character in one moment. It is also useful at a party: Dominic would talk to anyone, bring up odd topics, not notice when a conversation is going badly. Easy to play.

The cap fit matters more than the cap style

A flat cap that is too large slides around and looks like a prop. One that sits correctly on your head looks like something you wear. Order true to size and try it on before the night. If it is slightly loose, a thin strip of foam tape inside the band fixes it without being visible. A wobbling cap at a party is a distraction from the costume, not part of it.

The sweater choice changes the silhouette

The Irish wool sweater and the cable knit are listed as alternatives, but they give slightly different results. The wool sweater has more drape and looks more lived-in. The cable knit has more structure and photographs with clearer texture. If you are going to a low-light venue where close-up photos are unlikely, the wool sweater is the better call. If you expect a lot of photos, the cable knit holds its shape better under a flash.

Dominic Kearney Group Halloween Costume Ideas

Group Idea: The Inisherin Islanders

Dominic, Pádraic, Colm, Siobhán

Excellent group for anyone who has seen the film, but the visual problem is that all four costumes look almost identical. Four people in flat caps and knitwear will need name tags or a lot of in-character behaviour to be readable without explanation. Commit to the characters, not just the clothes.

Dominic Pádraic Colm Siobhán

Group Idea: Tragic Village Misfits

Dominic, Edward Scissorhands, Lennie Small, Hodor

Strong concept if your group likes the theme, because the connection is character-level rather than franchise-level. Each of these is a character who does not quite fit the world around them and pays for it. Edward Scissorhands and Hodor are visually strong anchors. Lennie and Dominic both require their costumes to do more work, so those two need to be well-executed to hold up their end.

Dominic Edward Scissorhands Lennie Small Hodor

Group Idea: The Barry Keoghan Collection

Dominic, Oliver Quick, Druig, Joker

Might work, but the same-actor concept only lands if at least two of the costumes are immediately recognisable. Joker and Oliver Quick from Saltburn are both strong enough to anchor it. Druig is niche even among Marvel fans. Dominic is the least visually distinctive of the four. The group works at a film-savvy event; at a general party, the logic needs to be explained and the explanation is longer than people want to give it.

Dominic Oliver Quick Druig Joker

Group Idea: The Driven Dominics

Dominic Kearney, Dominic Toretto, Dominic Cobb, Dominic Greene

Might work, but shared first name is a thin thread. Toretto and Cobb are widely recognised. Greene from Quantum of Solace is not. Dominic Kearney is even less so. The concept needs a strong visual contrast between the four costumes to give it any comic payoff, and it has that: a 1920s Irish villager next to a Fast and Furious racer next to a dream heist specialist is a specific kind of absurd that can work if everyone commits.

Dominic Kearney Dominic Toretto Dominic Cobb Dominic Greene

Group Idea: Melancholic Irish Souls

Dominic, Connell Waldron, Father Dougal McGuire, Thomas Shelby

Might work, but this is a niche group and Thomas Shelby is not Irish, he is from Birmingham. The Irish theme holds for Dominic, Connell, and Dougal, but Shelby is a stretch that needs explaining. If the group wants a strong visual and thematic anchor, Connell and Dougal both have that. Shelby is probably there because he fits the general melancholy-man aesthetic, which is not quite the same as the theme.

Dominic Connell Waldron Father Dougal McGuire Thomas Shelby
Dominic Kearney from The Banshees of Inisherin sitting on a stone wall by the ocean wearing a dark purple chunky ribbed knit sweater and olive green trousers, looking out with a bewildered expression

ALL THE BANSHEES OF INISHERIN & SPIN-OFF COSTUME IDEAS

Every The Banshees of Inisherin costume guide on CostumeRealm.

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Dominic Kearney Halloween Costume DIY Tips

What You Can Pull From Your Wardrobe

This is one of the more wardrobe-friendly costumes on this site. Most of the pieces are ordinary clothes. Here is what to check before ordering anything.

  • Denim shirt: almost everyone owns one. Check first.
  • Olive trousers: chinos, cargo pants, or even dark khakis work. The colour matters more than the cut.
  • Sweater: the chunkier the better. If you own a thick cable knit or wool sweater in any dark colour, use it.
  • Oxford shoes: any lace-up leather shoe in brown or tan reads correctly. Scuff them.
  • Green corduroy jacket: harder to substitute. A brown or olive waxed jacket is the closest alternative if you cannot find corduroy.
  • Flat tweed cap: buy this. It is cheap, it is specific, and there is no good substitute. A baseball cap is not the same thing.

Playing the Character on the Night

Dominic is not a difficult character to play, but he is easy to play wrong. The mistake is playing him as sad. He is not primarily sad. He is earnest and a little oblivious, and the sadness comes from circumstances rather than disposition.

  • His opener is to share something he finds funny or interesting. Do that. Find something small and slightly odd at the party and bring it up with genuine enthusiasm.
  • He is unbothered by silences that other people find uncomfortable. Use that. It reads as character without requiring dialogue.
  • If someone has not seen the film, describe Dominic as “the one who keeps trying.” That is accurate and takes about two seconds.
  • The quote “I just thought of something funny. Can I tell you it?” is the one line worth knowing. Delivery matters: say it like you genuinely think it is going to land.
  • Do not play him as tragic. That comes later in the film, and at a Halloween party you want the first half of the character, not the second.

Dominic Kearney Halloween Costume: FAQ

Layer a green corduroy jacket over an Irish wool or cable knit sweater, add olive chino trousers, a tweed flat cap, and Oxford leather shoes. The layering is the costume. No single item reads as Dominic on its own, but the combination of a flat cap, chunky knitwear, and earth-toned outerwear places you in a 1923 Irish island without much effort.

Among film fans who saw The Banshees of Inisherin, yes. The film won the Golden Globe for Best Motion Picture and earned multiple Oscar nominations in 2023, which keeps it in conversation with people who follow awards cinema. At a general party with no film buffs, you will mostly look like someone dressed for a walk in Connemara.

His most quoted line is: “I just thought of something funny. Can I tell you it?” It captures the character exactly: he is genuinely delighted to have a thought to share, entirely unaware that the room may not want to hear it.

Dominic is played by Barry Keoghan, who received an Academy Award nomination for Best Supporting Actor for the role. Keoghan is also known for playing Oliver Quick in Saltburn, Druig in Eternals, and a brief Joker cameo in The Batman.

There is no uniform. Dominic wears layered, practical rural Irish clothing from 1923: a flat cap, chunky knitwear, a corduroy or worn jacket, olive trousers, and sturdy shoes. The costume is built from the combination of pieces, not from any single distinctive item. That also means there is no one piece you can forget and still have it work.

The film, directed by Martin McDonagh, follows Pádraic Súilleabháin after his lifelong friend Colm Doherty abruptly ends their friendship for reasons he refuses to explain, set on a fictional Irish island during the Civil War of 1923. Dominic is the local oddball who attaches himself to Pádraic during the fallout. The film won the Golden Globe for Best Motion Picture in the Musical or Comedy category and is available to stream on various platforms (IMDb).

Yes. Dominic and Pádraic is the natural pairing. The visual problem is that both costumes are very similar: flat caps, knitwear, olive or muted trousers. Lean into the character dynamic rather than the clothing difference. Pádraic looks sad. Dominic looks like he has not quite registered that things are going badly. That contrast reads without any costume difference at all.

A little, yes. Dominic’s clothes are worn and lived-in, not fresh from a wardrobe. If the sweater is brand new and the jacket is clean, it reads as someone dressed in Irish country style rather than someone who has been wearing the same things for years. Scuff the shoes. Do not iron the jacket. That is about all it takes.