
Dementor Costume
Bring the chilling presence of Azkaban's guards to life.
The Dementor is one of the most terrifying creatures in the Harry Potter universe, known for draining peace and hope from anyone nearby. This costume is a popular choice for Halloween and cosplay because of its eerie, faceless silhouette and dramatic, floating appearance. The look centers on a heavily tattered, decaying black hooded robe that conceals your face and features a skeletal chest.
- Difficulty
- Medium
- Time
- ~45 min
- Budget
- $30–80
Try it on
See yourself as Dementor
One clear photo of yourself; we render you in this costume — face untouched, full body, about 20 seconds.
One render, $1. No account needed — if it fails you're not charged. Pricing.
Your photo is sent to Google's Gemini API to make the render and isn't used for training. Renders are AI-generated and labelled.
Want a different costume on this photo, or a whole group in costume? Open the Try-On Studio.

What you need for a Dementor costume
Short on time? Buy it ready-made
Spirit Halloween sells the complete Dementor costume — one box instead of 5 pieces.
Tattered black hooded robe
A long, flowing black robe with a deep hood and shredded, decaying hemlines and sleeves.
DIY: Shred the edges of an old black bedsheet or cheap black hooded cape with scissors and a wire brush.
Skeletal chest piece
A grey or black molded foam chest piece showing exposed, decaying rib outlines.
DIY: Paint grey rib outlines onto a black compression shirt using fabric paint.
Black mesh face mask
A breathable, sheer black fabric mask or hood insert to completely obscure your facial features.
DIY: Sew a layer of black pantyhose or sheer mesh fabric inside the opening of the hood.
Decaying skeletal gloves
Long black gloves featuring molded, elongated grey skeletal fingers.
DIY: Glue painted craft-foam bone shapes onto plain black jersey gloves.
Black undergarments
A black long-sleeve shirt and black pants to wear underneath the tattered layers.
DIY: Use any plain black clothing you already own.
Rather not assemble it? See ready-made Dementor costumes at Spirit Halloween ↗
How to put it together
- 1
Put on the black long-sleeve shirt and black pants as a base layer.
- 2
Secure the skeletal chest piece over your shirt so the ribs are visible when the robe is open.
- 3
Pull on the sheer black mesh mask to fully obscure your face while maintaining visibility.
- 4
Put on the tattered black hooded robe, pulling the deep hood forward to cast a shadow over your face.
- 5
Slip on the decaying skeletal gloves, ensuring they tuck into the shredded sleeves of the robe.
- 6
Adjust the tattered fabric strips of the robe to drape naturally and maximize the floating, wispy effect.
Makeup & hair
No hair styling or makeup is required, as your head and face are completely hidden beneath the sheer black face mask and deep hood to create a faceless, void-like appearance.
Dementor for couples, groups, kids & more
- couples
- Pair up with someone dressed as Harry Potter casting a glowing blue Patronus charm.
- group
- Gather a group of Dementors to swarm a party, or pair with Azkaban prisoners in striped uniforms.
- kids
- Use a lightweight, child-sized licensed Dementor robe with a built-in mesh face mask for easy breathing.
- Plus size
- Opt for an oversized, flowing black cloak with adjustable ties to ensure a comfortable, billowing fit.
Tips
- Ensure the mesh over your face is breathable and thin enough to see through safely in low-light settings.
- To enhance the floating effect, walk with smooth, gliding steps rather than bouncing.
- Keep a few pieces of chocolate in your pocket to hand out to people as a fun, lore-accurate recovery prop.
Dementor costume FAQ
- Can you see out of the Dementor mask?
- Yes, the costume uses a sheer black mesh face cover that allows you to see out clearly while keeping your face completely hidden in shadow from the outside.
- How do I make a DIY Dementor costume?
- You can make one by shredding a cheap black hooded cloak or black bedsheets, painting a rib cage onto a black shirt, and wearing a black mesh veil over your face.
- What do Dementors look like under the hood?
- Dementors are faceless, decaying, and blind. They only have a void-like mouth used to perform the Dementor's Kiss, which is why a black mesh mask is perfect for this look.
Did you know? In the Harry Potter films, the floating movement of the Dementors was achieved by filming puppeteered fabric underwater and then digitally compositing it into the scenes.