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Sci-Fi Costumes for an Out-of-This-World Halloween

(485 items)
3" Bulk 72 Pc. Creepy Solid Color Vinyl Martian Fingers with Red Nails
3" Bulk 72 Pc. Creepy Solid Color Vinyl Martian Fingers with Red Nails
72 Piece(s) #39/431
$6.49
(28)
 
 
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3" Bulk 72 Pc. Glow-in-the-Dark Vinyl Martian Finger Costume Accessories
3" Bulk 72 Pc. Glow-in-the-Dark Vinyl Martian Finger Costume Accessories
72 Piece(s) #39/434
$8.19
(21)
 
 
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Adults The Umbrella Academy™ Agent Cheerleader Mask Costume Accessory
Adults The Umbrella Academy™ Agent Cheerleader Mask Costume Accessory
1 Piece(s) #MAMXUS108
On
Sale
$5.98
14% OFF
 
 
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Pointed Latex Ears Alien Blue
Pointed Latex Ears Alien Blue
1 Piece(s) #FA30BU
Clearance
Price
$1.37
90% OFF
 
 
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Halo™ Energy Sword
Halo™ Energy Sword
1 Piece(s) #DG48490
On
Sale
$16.98
29% OFF
(4)
 
 
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Kids Star Wars™ The Mandalorian™ Gloves
Kids Star Wars™ The Mandalorian™ Gloves
2 Piece(s) #JWC1178
On
Sale
$4.98
40% OFF
 
 
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Girl's Deluxe Star Wars™ Episode VIII: The Last Jedi Rey Costume
Girl's Deluxe Star Wars™ Episode VIII: The Last Jedi Rey Costume
1 Piece(s) #13805162
Starting at
$40.77
(3)
 
 
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Pointed Latex Ears
Pointed Latex Ears
1 Piece(s) #FA30FL
Clearance
Price
$1.97
86% OFF
 
 
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Kids Silver Astronaut Halloween Costume
Kids Silver Astronaut Halloween Costume
1 Piece(s) #14305078
Starting at
$26.98
 
 
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Adults Star Wars™ The Book of Boba Fett™ Boba Fett™ Half Mask
Adults Star Wars™ The Book of Boba Fett™ Boba Fett™ Half Mask
1 Piece(s) #JWC1187
On
Sale
$5.98
26% OFF
 
 
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Men's Star Wars™ Boba Fett Mask
Men's Star Wars™ Boba Fett Mask
1 Piece(s) #RU32846
On
Sale
$51.98
14% OFF
 
 
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Astronaut Helmet with Sounds
Astronaut Helmet with Sounds
2 Piece(s) #AR26
On
Sale
$30.98
68% OFF
 
 
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Adults Star Wars™ Darth Vader™ Half Mask
Adults Star Wars™ Darth Vader™ Half Mask
1 Piece(s) #JWC1190
On
Sale
$5.98
53% OFF
 
 
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Inflatable T-Rex With Sound Costume
Inflatable T-Rex With Sound Costume
6 Piece(s) #RU820679
On
Sale
$84.98
54% OFF
 
 
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Kids Halo™ Master Chief Infinite Jumpsuit Costume - Medium 7-8
Kids Halo™ Master Chief Infinite Jumpsuit Costume - Medium 7-8
1 Piece(s) #DG105009K
$136.99
 
 
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Star Wars™ The Mandalorian™ Grogu™ Headpiece
Star Wars™ The Mandalorian™ Grogu™ Headpiece
1 Piece(s) #JWC1183
$7.98
 
 
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Boy's Halo™ Master Chief Lightup Mask
Boy's Halo™ Master Chief Lightup Mask
1 Piece(s) #DG24441
$60.99
 
 
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Adults Light-Up Gray Alien Mask
Adults Light-Up Gray Alien Mask
1 Piece(s) #MR131534
On
Sale
$6.98
20% OFF
 
 
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Halo Infinite Forerunner Blast
Halo Infinite Forerunner Blast
1 Piece(s) #DG108809
On
Sale
$11.98
47% OFF
 
 
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Kids Star Wars™ The Mandalorian™ Light-Up Costume
Kids Star Wars™ The Mandalorian™ Light-Up Costume
3 Piece(s) #14241976
Starting at
$33.98
 
 
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Boy's Classic Muscle Chest Mighty Morphin Power Rangers™ Gold Ranger Dino Costume - Medium
Boy's Classic Muscle Chest Mighty Morphin Power Rangers™ Gold Ranger Dino Costume - Medium
1 Piece(s) #DG82789K
Clearance
Price
$27.97
49% OFF
 
 
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Mighty Morphin Power Rangers™ Red Ranger Sword Toy Weapon
Mighty Morphin Power Rangers™ Red Ranger Sword Toy Weapon
1 Piece(s) #DG164109
$25.99
 
 
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Boy's Optimus Prime Convertible Costume - Transformers
Boy's Optimus Prime Convertible Costume - Transformers
1 Piece(s) #14107846
Starting at
$109.99
 
 
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Transformers Optimus Prime T7 Movie Blaster Costume Accessory
Transformers Optimus Prime T7 Movie Blaster Costume Accessory
1 Piece(s) #DG124709
$12.99
 
 
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Adults Star Wars™ The Mandalorian™ Half Mask
Adults Star Wars™ The Mandalorian™ Half Mask
1 Piece(s) #JWC1180
On
Sale
$7.98
40% OFF
 
 
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Kids Star Wars™ A New Hope™ Darth Vader Cape & Mask Set - One Size
Kids Star Wars™ A New Hope™ Darth Vader Cape & Mask Set - One Size
2 Piece(s) #JWC2168
$21.99
 
 
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Kids Halo Infinite™ Master Chief Gloves
Kids Halo Infinite™ Master Chief Gloves
1 Piece(s) #DG105079
$15.99
 
 
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2 1/4" Ghostbusters™ Stay Puft Marshmallow Man Full-Color Enamel Pin
2 1/4" Ghostbusters™ Stay Puft Marshmallow Man Full-Color Enamel Pin
1 Piece(s) #MASFSP114
$11.49
 
 
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Alien Probe Mask
Alien Probe Mask
1 Piece(s) #TA496
On
Sale
$28.98
36% OFF
 
 
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Kids Inflatable Jurassic World™ T-Rex Costume
Kids Inflatable Jurassic World™ T-Rex Costume
1 Piece(s) #13768547
Clearance
Price
$45.97
42% OFF
(22)
 
 
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Star Wars™ Kylo Ren Light-Up Lightsaber
Star Wars™ Kylo Ren Light-Up Lightsaber
1 Piece(s) #JWC3735
$20.99
 
 
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Adults Inflatable Disney Pixar Toy Story™ Buzz Lightyear Costume with Helmet - One Size
Adults Inflatable Disney Pixar Toy Story™ Buzz Lightyear Costume with Helmet - One Size
1 Piece(s) #DG246979
$109.99
 
 
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Star Wars™ The Mandalorian™ Light-Up Darksaber with Retractable Blade
Star Wars™ The Mandalorian™ Light-Up Darksaber with Retractable Blade
1 Piece(s) #JWC3736
$20.99
 
 
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Classic Pink Ranger Dino Girls Halloween Costume
Classic Pink Ranger Dino Girls Halloween Costume
1 Piece(s) #DG82737L
Clearance
Price
$14.97
57% OFF
 
 
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Kids Halo™ Chrome Energy Sword Costume Accessory
Kids Halo™ Chrome Energy Sword Costume Accessory
1 Piece(s) #DG171709
$24.99
 
 
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Kids Ghostbusters™ Ecto Goggles Accessory
Kids Ghostbusters™ Ecto Goggles Accessory
1 Piece(s) #DG120289
$15.99
 
 
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Avatar Neytiri Deluxe Wig
Avatar Neytiri Deluxe Wig
1 Piece(s) #DG129289
On
Sale
$22.98
14% OFF
 
 
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Antenna Headband
Antenna Headband
1 Piece(s) #MR158040
On
Sale
$1.98
69% OFF
 
 
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Boy's Classic Muscle Mighty Morphin Power Rangers™ Red Ranger Costume
Boy's Classic Muscle Mighty Morphin Power Rangers™ Red Ranger Costume
1 Piece(s) #14289413
Starting at
$27.98
 
 
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Boy's Star Wars: Rogue One Deluxe K-2SO Costume
Boy's Star Wars: Rogue One Deluxe K-2SO Costume
1 Piece(s) #14107790
Starting at
$19.97
 
 
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Kids Toy Story Buzz Lightyear Gloves
Kids Toy Story Buzz Lightyear Gloves
1 Pair #DG18043
$10.49
 
 
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Kids Ghostbusters™ Handheld PKE Meter
Kids Ghostbusters™ Handheld PKE Meter
2 Piece(s) #DG120279
$15.99
 
 
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Kids Star Wars™ The Book of Boba Fett™ Boba Fett™ Half Mask
Kids Star Wars™ The Book of Boba Fett™ Boba Fett™ Half Mask
1 Piece(s) #JWC1186
On
Sale
$5.98
50% OFF
 
 
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Girl’s Classic Power Rangers™ Pink Ranger Costume
Girl’s Classic Power Rangers™ Pink Ranger Costume
1 Piece(s) #14289412
Starting at
$21.99
 
 
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Kids Star Wars™ The Mandalorian™ Half Mask
Kids Star Wars™ The Mandalorian™ Half Mask
1 Piece(s) #JWC1179
On
Sale
$4.98
54% OFF
 
 
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Women's Classic Ghostbusters Costume
Women's Classic Ghostbusters Costume
1 Piece(s) #14298357
Starting at
$26.98
 
 
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Star Wars™ The Mandalorian™ Grogu™ Shoulder Sitter
Star Wars™ The Mandalorian™ Grogu™ Shoulder Sitter
1 Piece(s) #JWC1182
On
Sale
$18.98
17% OFF
 
 
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Toddler's Star Wars™ The Mandalorian™ Costume - 3T - 4T
Toddler's Star Wars™ The Mandalorian™ Costume - 3T - 4T
3 Piece(s) #JWC0683TL
On
Sale
$19.98
50% OFF
 
 
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Boy’s Deluxe Toy Story™ Buzz Lightyear Costume
Boy’s Deluxe Toy Story™ Buzz Lightyear Costume
1 Piece(s) #14263793
Starting at
$24.97
 
 
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Boy's Inflatable Toy Story 4™ Buzz Lightyear Costume
Boy's Inflatable Toy Story 4™ Buzz Lightyear Costume
1 Piece(s) #DG89448CH
Clearance
Price
$43.97
58% OFF
 
 
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Adults Deluxe Darth Vader Gloves
Adults Deluxe Darth Vader Gloves
1 Pair #JWC3024
$17.99
 
 
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Kids Toy Story™ Buzz Lightyear Spaceship Wheelchair Cover
Kids Toy Story™ Buzz Lightyear Spaceship Wheelchair Cover
1 Piece(s) #DG118579
$37.99
 
 
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Toddler Mighty Morphin Power Rangers™ Pink Ranger Jumpsuit Costume
Toddler Mighty Morphin Power Rangers™ Pink Ranger Jumpsuit Costume
1 Piece(s) #DG67381S
On
Sale
$22.98
34% OFF
 
 
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Boy's Classic Muscle Mighty Morphin Gold Ranger Costume
Boy's Classic Muscle Mighty Morphin Gold Ranger Costume
1 Piece(s) #14277494
Starting at
$21.98
 
 
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Mighty Morphin Power Rangers™ Dino Charge Power Ranger Gloves
Mighty Morphin Power Rangers™ Dino Charge Power Ranger Gloves
1 Piece(s) #DG82792
On
Sale
$5.98
22% OFF
 
 
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Kids Star Wars: The Mandalorian and Grogu™ Mandalorian Gauntlet Gloves Costume Accessory
Kids Star Wars: The Mandalorian and Grogu™ Mandalorian Gauntlet Gloves Costume Accessory
1 Piece(s) #JWC6823
$9.99
 
 
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Adults Deluxe Toy Story™ Zurg Jumpsuit Costume - 42-46
Adults Deluxe Toy Story™ Zurg Jumpsuit Costume - 42-46
1 Piece(s) #DG125109D
$61.99
 
 
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Toddler Apollo 11 Astronaut Suit Costume
Toddler Apollo 11 Astronaut Suit Costume
1 Piece(s) #14108384
Starting at
$36.98
 
 
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Kids Classic Jurassic World Blue Costume
Kids Classic Jurassic World Blue Costume
2 Piece(s) #14359578
Starting at
$25.98
 
 
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Child Transformers Bumblebee Muscle Costume Large 10-12
Child Transformers Bumblebee Muscle Costume Large 10-12
1 Piece(s) #DG22432G
On
Sale
$27.98
44% OFF
 
 
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Star Wars™ Darth Maul Lightsaber
Star Wars™ Darth Maul Lightsaber
1 Piece(s) #RU1613
Clearance
Price
$26.97
46% OFF
 
 
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Adults Deluxe Ghostbusters™ (2016) Kevin Beckman Costume - Standard
Adults Deluxe Ghostbusters™ (2016) Kevin Beckman Costume - Standard
1 Piece(s) #RU820123
Clearance
Price
$22.17
73% OFF
 
 
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Kids Qualux Star Wars™ The Mandalorian™ Costume
Kids Qualux Star Wars™ The Mandalorian™ Costume
3 Piece(s) #14242000
Starting at
$24.98
 
 
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Kids Deluxe Disney Pixar Toy Story™ Buzz Lightyear Tutu Costume
Kids Deluxe Disney Pixar Toy Story™ Buzz Lightyear Tutu Costume
1 Piece(s) #DG89216
Starting at
$59.99
 
 
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Find Your Perfect Sci-Fi Character Look

Transform into your favorite intergalactic hero or villain with our expansive selection of sci-fi costumes. From the far reaches of space to iconic movie franchises, we have everything you need to create a show-stopping ensemble for Halloween 2025. Our collection features officially licensed outfits from top studios, ensuring authentic and detailed character looks. Whether you're joining a crew of Ghostbusters or commanding the galaxy as a Jedi, our movie character costumes provide an unforgettable experience. Explore options for kids, teens, and adults to find the perfect fit for your entire family's cosmic adventure. With a vast range of sizes and styles, achieving your dream cosplay sci-fi outfit has never been easier or more fun.