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

(432 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
On
Sale
$5.98
7% OFF
(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 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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Kids Star Wars™ The Mandalorian™ Half Mask
Kids Star Wars™ The Mandalorian™ Half Mask
1 Piece(s) #JWC1179
On
Sale
$4.48
59% 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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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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Boy's Classic Mighty Morphin Power Rangers™ Red Ranger Dino Costume
Boy's Classic Mighty Morphin Power Rangers™ Red Ranger Dino Costume
1 Piece(s) #14289438
Starting at
$16.18
 
 
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Adults NOPE™ Jupiter's Claim Star Lasso Experience Alien Viewer Mask
Adults NOPE™ Jupiter's Claim Star Lasso Experience Alien Viewer Mask
1 Piece(s) #MATTUS201
On
Sale
$20.98
22% OFF
 
 
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4th Doctor Who Necktie
4th Doctor Who Necktie
1 Piece(s) #EL444382
On
Sale
$8.08
67% OFF
 
 
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Men’s Star Trek: Discovery™ Silver Science Officer Uniform Costume
Men’s Star Trek: Discovery™ Silver Science Officer Uniform Costume
1 Piece(s) #13827118
Starting at
$87.47
 
 
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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
$5.38
34% OFF
 
 
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Kids Transformers™ Bumblebee Adaptive Costume
Kids Transformers™ Bumblebee Adaptive Costume
1 Piece(s) #14241937
Starting at
$28.98
 
 
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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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Halo Infinite™ Deluxe Light Up Energy Sword
Halo Infinite™ Deluxe Light Up Energy Sword
1 Piece(s) #DG105059
$54.99
 
 
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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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Men's Halo™ Master Chief Mask
Men's Halo™ Master Chief Mask
1 Piece(s) #DG24442
On
Sale
$56.18
29% OFF
 
 
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Ghostbusters™ Ghost Trap
Ghostbusters™ Ghost Trap
1 Piece(s) #DG120299
$15.49
(2)
 
 
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Toddler's Star Wars™ The Mandalorian™ Grogu™ Costume - 3T - 4T
Toddler's Star Wars™ The Mandalorian™ Grogu™ Costume - 3T - 4T
2 Piece(s) #JWC0682TL
On
Sale
$20.98
36% OFF
 
 
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Kids Inflatable Godzilla X Kong: The New Empire™ Kong Costume - One Size
Kids Inflatable Godzilla X Kong: The New Empire™ Kong Costume - One Size
Each #ISD105652
$71.99
 
 
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Adults The Umbrella Academy™ Agent KG Beast Mask Costume Accessory
Adults The Umbrella Academy™ Agent KG Beast Mask Costume Accessory
1 Piece(s) #MAMXUS115
On
Sale
$8.98
66% OFF
 
 
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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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Kids Ghostbusters™ Ecto Goggles Accessory
Kids Ghostbusters™ Ecto Goggles Accessory
1 Piece(s) #DG120289
$15.99
 
 
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Kids Black Inflatable Crewmate Killer Costume
Kids Black Inflatable Crewmate Killer Costume
2 Piece(s) #SH21139
Clearance
Price
$20.67
70% OFF
 
 
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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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Toddler Deluxe Star Trek™ Commander Spock Jumpsuit Costume
Toddler Deluxe Star Trek™ Commander Spock Jumpsuit Costume
2 Piece(s) #JWC5105
$32.99
 
 
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Kids Star Wars™ Darth Vader™ Red Lightsaber™ Costume Accessory
Kids Star Wars™ Darth Vader™ Red Lightsaber™ Costume Accessory
Each #JWC3733
$23.99
 
 
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Kids Star Wars™ The Mandalorian™ The Mandalorian Cape & Mask Set
Kids Star Wars™ The Mandalorian™ The Mandalorian Cape & Mask Set
2 Piece(s) #JWC2169
$19.99
 
 
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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™ Shoulder Sitter
Star Wars™ The Mandalorian™ Grogu™ Shoulder Sitter
1 Piece(s) #JWC1182
On
Sale
$17.08
25% OFF
 
 
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Adults Inflatable Ghostbusters Staypuft Man
Adults Inflatable Ghostbusters Staypuft Man
1 Piece(s) #DG120169
$87.99
 
 
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Light-Up Star Wars: The Phantom Menace™ Darth Maul Double Red Lightsaber
Light-Up Star Wars: The Phantom Menace™ Darth Maul Double Red Lightsaber
1 Piece(s) #JWC4604
$25.99
 
 
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Men’s Star Wars™ Kylo Ren Gloves
Men’s Star Wars™ Kylo Ren Gloves
1 Piece(s) #13768417
Clearance
Price
$16.07
40% OFF
 
 
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Women's Star Wars™ Rey Leggings
Women's Star Wars™ Rey Leggings
1 Piece(s) #13789198
Clearance
Price
$11.87
52% OFF
 
 
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Toddler Transformers Bumblebee Muscle Costume 2T
Toddler Transformers Bumblebee Muscle Costume 2T
1 Piece(s) #DG67504S
Clearance
Price
$19.27
61% OFF
 
 
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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
FLO's
DEAL
$25.77
53% OFF
 
 
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Tween Classic Stranger Things™ Demogorgon Costume
Tween Classic Stranger Things™ Demogorgon Costume
1 Piece(s) #14469669
Starting at
$36.99
 
 
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Kids Ultra Prestige Halo Infinite™ Master Chief Costume
Kids Ultra Prestige Halo Infinite™ Master Chief Costume
1 Piece(s) #14469618
Starting at
$268.99
 
 
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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
$5.38
55% OFF
 
 
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Adults Classic Toy Story™ Buzz Lightyear Jumpsuit Costume
Adults Classic Toy Story™ Buzz Lightyear Jumpsuit Costume
1 Piece(s) #14263742
Starting at
$44.99
 
 
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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
$31.28
 
 
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Antenna Headband
Antenna Headband
1 Piece(s) #MR158040
On
Sale
$1.98
69% OFF
 
 
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Kids Mighty Morphin Power Rangers Blue Ranger Vacuum Mask
Kids Mighty Morphin Power Rangers Blue Ranger Vacuum Mask
1 Piece(s) #DG19661
Clearance
Price
$5.37
70% OFF
 
 
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Men's Deluxe Disney Pixar Toy Story™ Buzz Lightyear Costume
Men's Deluxe Disney Pixar Toy Story™ Buzz Lightyear Costume
1 Piece(s) #14108245
Starting at
$69.99
 
 
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Boy's Classic Muscle Chest Mighty Morphin Power Rangers™ Red Ranger Dino Costume
Boy's Classic Muscle Chest Mighty Morphin Power Rangers™ Red Ranger Dino Costume
1 Piece(s) #14289538
Starting at
$22.48
 
 
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Toddler Classic Muscle Transformers Bumblebee T7 Costume
Toddler Classic Muscle Transformers Bumblebee T7 Costume
2 Piece(s) #14359673
Starting at
$18.98
 
 
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Kids Ghostbusters™ Handheld PKE Meter
Kids Ghostbusters™ Handheld PKE Meter
2 Piece(s) #DG120279
On
Sale
$10.08
36% OFF
 
 
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Halo™ Plasma Blaster Gun
Halo™ Plasma Blaster Gun
1 Piece(s) #DG67129
$24.99
 
 
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Power Rangers™ Cosmic Fury Blue Ranger Weapon
Power Rangers™ Cosmic Fury Blue Ranger Weapon
1 Piece(s) #DG167259
On
Sale
$13.28
31% OFF
 
 
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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
$5.38
30% OFF
 
 
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Transformers One™ Light-Up Matrix of Leadership Costume Accessory
Transformers One™ Light-Up Matrix of Leadership Costume Accessory
1 Piece(s) #DG164079
On
Sale
$12.08
39% 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 Ghostbusters: Frozen Empire™ Slimer Inflatable Costume
Kids Ghostbusters: Frozen Empire™ Slimer Inflatable Costume
1 Piece(s) #DG164279
On
Sale
$29.88
50% 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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Boy’s Muscle Chest Power Rangers™ Red Ranger Costume
Boy’s Muscle Chest Power Rangers™ Red Ranger Costume
1 Piece(s) #14289411
Starting at
$17.98
 
 
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Women's Deluxe Stranger Things™ Max Costume
Women's Deluxe Stranger Things™ Max Costume
1 Piece(s) #14469672
Starting at
$25.78
 
 
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Kids Inflatable Toy Story™ Buzz Lightyear Jet Pack
Kids Inflatable Toy Story™ Buzz Lightyear Jet Pack
1 Piece(s) #DG11204
$14.99
 
 
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Adults The Umbrella Academy™ Academy Kids Mask Costume Accessory
Adults The Umbrella Academy™ Academy Kids Mask Costume Accessory
1 Piece(s) #MAMFXUS102
On
Sale
$15.28
43% OFF
 
 
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Adults Star Wars™ The Mandalorian™ Half Mask
Adults Star Wars™ The Mandalorian™ Half Mask
1 Piece(s) #JWC1180
On
Sale
$7.18
46% OFF
 
 
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Kids Mighty Morphin Power Rangers Pink Ranger Vacuum Mask
Kids Mighty Morphin Power Rangers Pink Ranger Vacuum Mask
1 Piece(s) #DG19674
On
Sale
$4.48
37% OFF
 
 
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Kids Toy Story Buzz Lightyear Gloves
Kids Toy Story Buzz Lightyear Gloves
1 Pair #DG18043
On
Sale
$7.68
26% OFF
 
 
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Adults Star Wars: The Mandalorian and Grogu™ Mandalorian IB-94 Blaster Pistol Costume Accessory
Adults Star Wars: The Mandalorian and Grogu™ Mandalorian IB-94 Blaster Pistol Costume Accessory
1 Piece(s) #JWC6815
$19.99
 
 
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Star Wars™ Ewok™ Pet Costume
Star Wars™ Ewok™ Pet Costume
2 Piece(s) #14242019
Starting at
$35.99
 
 
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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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Women's Classic Ghostbusters Costume
Women's Classic Ghostbusters Costume
1 Piece(s) #14298357
Starting at
$26.98
 
 
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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.