Deanna Troi Costume
Embody Starfleet's beloved empathic counselor with this classic sci-fi look.
Counselor Deanna Troi from Star Trek: The Next Generation is a favorite cosplay choice for sci-fi fans who appreciate her empathy and style. Her most iconic look features a distinctive teal or turquoise long-sleeved dress, complete with a Starfleet communicator badge. This guide helps you assemble her signature outfit, whether you choose her classic counselor dress or her standard duty uniform.
- Difficulty
- Easy
- Time
- ~30 min
- Budget
- $35–95
Try it on
See yourself as Deanna Troi
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What you need for a Deanna Troi costume
Short on time? Buy it ready-made
Spirit Halloween sells the complete Deanna Troi costume — one box instead of 4 pieces.
Teal long-sleeved dress
A form-fitting teal or turquoise long-sleeved maxi dress with a scoop or square neckline.
DIY: Use a plain teal long-sleeved shirt and a matching maxi skirt.
Silver collar trim
Metallic silver ribbon or fabric tape to line the neckline of the dress.
DIY: Use silver fabric paint or metallic silver tape along the neckline.
Starfleet communicator badge
A gold and silver TNG-style communicator pin worn on the left chest.
DIY: Cut the badge shape out of gold and silver craft foam and attach a safety pin to the back.
Black boots
Simple black ankle or knee-high boots with a low, comfortable heel.
DIY: Use any plain black closed-toe shoes you already own.
Rather not assemble it? See ready-made Deanna Troi costumes at Spirit Halloween ↗
How to put it together
- 1
Put on the teal long-sleeved dress as the base of the outfit.
- 2
Attach the metallic silver ribbon trim along the neckline using fabric glue or double-sided fashion tape to replicate her signature collar.
- 3
Pin the Starfleet communicator badge to the left side of the chest, just below the collarbone.
- 4
Slip into a pair of comfortable, plain black boots.
- 5
Style your hair into Troi's signature voluminous, dark curls.
Makeup & hair
Style dark brown hair into voluminous, bouncy curls, either worn down or in a half-up, half-down style with a high crown. Keep makeup natural with soft brown eyeshadow, defined eyeliner, and a neutral or mauve lip color.
Deanna Troi for couples, groups, kids & more
- couples
- Pair with Commander William Riker in a red TNG Starfleet command uniform.
- group
- Join a full Star Trek: TNG crew with Captain Picard, Data, Worf, and Geordi La Forge.
- kids
- A miniature teal dress or standard blue Starfleet uniform with a toy communicator badge.
- Plus size
- A stretch-knit teal maxi dress offers a comfortable, flattering fit with excellent mobility.
- pet
- A blue Starfleet shirt collar for a dog or cat.
Tips
- Use double-sided fashion tape to keep the neckline and silver trim perfectly in place.
- If using a wig, use a wig grip and bobby pins to secure the heavy, voluminous style.
- Opt for comfortable low-heeled boots if you plan to walk around a convention all day.
Deanna Troi costume FAQ
- What color is Deanna Troi's signature dress?
- Her most famous counselor outfit is a teal or turquoise long-sleeved dress, though she also wore lavender, plum, and standard blue Starfleet duty uniforms.
- How do I style my hair like Counselor Troi?
- Use a curling iron to create tight, voluminous curls, then tease the roots at the crown for height, or style it in a half-up ponytail.
- Where does the communicator badge go?
- The Starfleet communicator badge is pinned to the left side of the chest, roughly over the heart.
Did you know? Deanna Troi transitioned to wearing a standard Starfleet duty uniform in Season 6 after Captain Edward Jellico ordered her to dress more professionally.