Last updated: July 17, 2026ยท By Seckin Peker

Halloween Costume Guide

Septa Unella Halloween Costume Guide

Shame. Shame. Shame. She only ever needed the one word.
Badass Women HBO Villain
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Quick Answer: Septa Unella’s costume is a plain grey habit built around one loud prop, the brass shame bell.
  • Brass Hand Bell (essential)
  • Grey Linen Maxi Dress (essential)
  • Grey Scarf Head Veil
  • Grey Rope Belt

Septa Unella is a member of the Faith of the Seven who tortures and interrogates Cersei Lannister, then leads her through the public Walk of Shame ringing a bell and chanting the word that fans still quote today. The grey habit is deliberately plain, everything about the outfit is meant to disappear so the bell and the chant do all the work. Game of Thrones ended in 2019, but the Walk of Shame remains one of the show’s most referenced scenes, which keeps this costume recognizable at any party with fans in the room.

Items Total6 Items
DifficultyEasy
VibeGrim Religious Enforcer
Cost$70-$160

Septa Unella Costume Items

Septa Unella Game of Thrones Halloween costume infographic showing grey linen maxi dress, grey veil, brass shame bell, grey rope belt, dark slip-on shoes, and blonde Cersei doll prop

Septa Unella Costume Items

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Septa Unella Game of Thrones Hannah Waddingham
  • 1Grey Linen Maxi Dress (essential)Plain, floor-length, and deliberately unremarkable. The dress needs to look almost monastic, anything fitted or stylish undercuts the whole point of the outfit.
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  • 2Grey Scarf Head VeilWrapped simply, covering most of the hair. Keep it plain, this isn’t a decorative piece.
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  • 3Brass Hand Bell (essential)The single item that makes this costume instantly recognizable. Ring it and chant, and there’s no question who you are, even to people who half-remember the show.
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  • 4Grey Rope BeltCinches the dress at the waist for a bit of shape without looking tailored.
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  • 5Dark Grey Slip-On ShoesCheck your closet first, any plain dark flat works here.
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  • 6Blonde Doll (Stand-In Cersei)An optional photo prop for recreating the Walk of Shame bit. Skip it if you’d rather not carry a doll around all night.
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Septa Unella Game of Thrones Halloween costume styling reference showing grey maxi dress, grey head veil, rope belt, and brass shame bell

How to Style the Septa Unella Costume

The bell is doing all the work here, and it needs to actually ring, a silent prop bell loses most of the effect the moment you stop moving. Keep the dress and veil as plain and grey as possible, any color or decorative detail pulls attention away from the one prop that matters. At a party, if you set the bell down and stop chanting, you’re just someone in a grey robe, the character only reads while you’re performing the bit.

Unella’s entire interrogation of Cersei comes down to one repeated word, “confess,” delivered without raising her voice or changing her expression once across multiple scenes. That flat, relentless repetition is scarier than any amount of shouting would be, and it’s worth copying more than the costume itself.

A real bell gets old for everyone else fast

Ringing it constantly all night will wear out the joke for the room. Save it for a proper entrance or photo moment instead of background noise for hours.

The doll prop needs somewhere to go between photos

Carrying a doll around all night gets awkward fast, especially near food or drinks. Bring a small bag to stash it in when you’re not actively doing the bit.

Septa Unella Group Halloween Costume Ideas

Villain Pairing

Septa Unella & Cersei Lannister

Excellent pairing and the most direct reference possible, since these two are locked in one of the show’s most quoted confrontations. Anyone who’s seen the Walk of Shame scene will get this instantly, no explanation needed.

Septa Unella Cersei Lannister

Group Idea: The Faith Militant

Septa Unella, the High Sparrow & Margaery Tyrell

Strong group for fans who followed the Faith Militant storyline, since these three represent both sides of that religious power struggle. It works best for a crowd that watched the middle seasons closely.

Septa Unella High Sparrow Margaery Tyrell

Group Idea: Notable Game of Thrones Women

Septa Unella, Sansa Stark & Melisandre

Might work, but these three don’t share a storyline, so the connection is really just “women of Westeros” rather than anything specific. The range of costumes across the three gives a photo real variety regardless.

Septa Unella Sansa Stark Melisandre

Group Idea: Game of Thrones Ensemble

Septa Unella, Jon Snow & Daenerys Targaryen

Might work, but Jon and Daenerys belong to a completely separate part of the story from Unella’s, so this trio only really functions as “recognizable Game of Thrones characters” rather than a meaningful group. It reads fine at a big party where recognition matters more than accuracy.

Septa Unella Jon Snow Daenerys Targaryen
Septa Unella Game of Thrones Halloween costume reference showing complete grey habit, veil, rope belt, and brass shame bell

Septa Unella Halloween Costume DIY Tips

Building the Look

This is one of the cheapest costumes on the site, the bell is the only item worth spending real money on.

  • Grey dress: thrift stores often have plain grey maxi dresses, no need for an exact linen match.
  • Veil: any plain grey scarf wrapped simply works, this doesn’t need to be a purchased piece.
  • Bell: buy a real one, a silent prop just doesn’t land the same way at a party.
  • Shoes: check your closet first, any plain dark flat is a fine substitute.
  • Doll: skip it entirely if you don’t want to carry a prop around all night.

Playing Septa Unella at the Party

Unella is flat, relentless, and never raises her voice even while doing something genuinely cruel. That calm is more unsettling to play than any amount of shouting.

  • Ring the bell and chant “shame” once for a dramatic entrance, then let it go.
  • If someone avoids a direct answer, respond with a flat “confess” instead of pushing further.
  • Keep your expression neutral throughout, Unella never seems to enjoy any of it, which is the unsettling part.

Septa Unella Halloween Costume: FAQ

Wear the grey linen maxi dress with a matching grey rope belt and grey scarf veil, add dark slip-on shoes, and carry a brass hand bell. Bring along a blonde doll as a stand-in Cersei if you want to recreate the Walk of Shame as a photo bit.

Yes, for Game of Thrones fans specifically. The Walk of Shame scene is one of the show’s most quoted moments, and the bell-and-chant bit gives you something to actually perform at a party, which a lot of costumes don’t.

The chant she rings her bell to during the Walk of Shame: “Shame! Shame! Shame!” And her repeated demand during Cersei’s interrogation: “Confess.”

Unella is played by Hannah Waddingham. She’s a member of the Faith of the Seven who interrogates and tortures Cersei Lannister, then leads her through the public Walk of Shame ringing a bell and chanting. She’s frequently nicknamed the Shame Nun by fans.

It helps. A real brass hand bell is what makes the bit land at a party, silent props don’t have the same effect when you’re chanting along with it.

What does Septa Unella chant while ringing her bell during Cersei’s Walk of Shame?

Which actor plays Septa Unella in Game of Thrones?