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

(373 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
$5.38
17% 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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Kids Classic Power Rangers™ Cosmic Fury Blue Ranger Muscle Costume
Kids Classic Power Rangers™ Cosmic Fury Blue Ranger Muscle Costume
1 Piece(s) #14469646
Starting at
$49.99
 
 
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Halo Infinite Mangler Costume Accessory
Halo Infinite Mangler Costume Accessory
1 Piece(s) #DG120719
On
Sale
$9.98
31% 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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Pointed Latex Ears Alien Blue
Pointed Latex Ears Alien Blue
1 Piece(s) #FA30BU
Clearance
Price
$1.37
90% OFF
 
 
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Kids Star Wars™ Obi-Wan Kenobi™ Blue Lightsaber™ Costume Accessory
Kids Star Wars™ Obi-Wan Kenobi™ Blue Lightsaber™ Costume Accessory
Each #JWC3734
$21.99
 
 
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Adults Classic Ghostbusters: Frozen Empire™ Flight Suit Costume
Adults Classic Ghostbusters: Frozen Empire™ Flight Suit Costume
1 Piece(s) #14469607
Starting at
$43.99
 
 
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Kids Deluxe Star Wars: The Mandalorian and Grogu™ Mandalorian Costume Set - One Size
Kids Deluxe Star Wars: The Mandalorian and Grogu™ Mandalorian Costume Set - One Size
1 Piece(s) #JDU0126
$59.99
 
 
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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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Kids Qualux Star Wars: The Phantom Menace™ Darth Maul Costume
Kids Qualux Star Wars: The Phantom Menace™ Darth Maul Costume
5 Piece(s) #14601687
Starting at
$32.98
 
 
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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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Star Wars™ Darth Maul Lightsaber
Star Wars™ Darth Maul Lightsaber
1 Piece(s) #RU1613
Clearance
Price
$24.27
51% 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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Ghostbusters™ Ghost Trap
Ghostbusters™ Ghost Trap
1 Piece(s) #DG120299
$15.49
(2)
 
 
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Halo™ Energy Sword
Halo™ Energy Sword
1 Piece(s) #DG48490
On
Sale
$15.58
35% OFF
(4)
 
 
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Women's Star Wars: The Mandalorian™ Grogu Hooded Dress Costume
Women's Star Wars: The Mandalorian™ Grogu Hooded Dress Costume
1 Piece(s) #JWC6810
Starting at
$54.99
 
 
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Kids Godzilla x Kong: The New Empire™ Godzilla Costume
Kids Godzilla x Kong: The New Empire™ Godzilla Costume
Each #14523059
Starting at
$48.99
 
 
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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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Adults Star Wars: The Mandalorian and Grogu™ Mandalorian Top & Mask Costume
Adults Star Wars: The Mandalorian and Grogu™ Mandalorian Top & Mask Costume
1 Piece(s) #JWC6849
Starting at
$39.99
 
 
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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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Halo Needler Costume Accessory
Halo Needler Costume Accessory
1 Piece(s) #DG48489
On
Sale
$19.68
38% OFF
 
 
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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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Adults Deluxe Mighty Morphin Power Rangers™ Pink Ranger Costume
Adults Deluxe Mighty Morphin Power Rangers™ Pink Ranger Costume
1 Piece(s) #14289410
Starting at
$55.99
 
 
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Adults Alien Spawn™ Green Full Mask with Black Shroud & Green Gloves Set
Adults Alien Spawn™ Green Full Mask with Black Shroud & Green Gloves Set
1 Piece(s) #FW93593
Clearance
Price
$12.27
35% OFF
 
 
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Antenna Headband
Antenna Headband
1 Piece(s) #MR158040
On
Sale
$1.98
69% OFF
 
 
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Classic Pink Ranger Dino Girls Halloween Costume
Classic Pink Ranger Dino Girls Halloween Costume
1 Piece(s) #DG82737L
Clearance
Price
$13.47
61% OFF
 
 
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Toddler Deluxe Star Wars: The Mandalorian and Grogu™ Grogu Costume
Toddler Deluxe Star Wars: The Mandalorian and Grogu™ Grogu Costume
1 Piece(s) #JWC6830
Starting at
$39.99
 
 
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Men's Premium Star Trek™ Captain Kirk Costume
Men's Premium Star Trek™ Captain Kirk Costume
3 Piece(s) #14601674
Starting at
$149.99
 
 
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Adults Qualux Avatar: The Last Airbender™ Aang Jumpsuit Costume
Adults Qualux Avatar: The Last Airbender™ Aang Jumpsuit Costume
5 Piece(s) #14601672
Starting at
$45.28
 
 
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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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Jango Fett Blasters And Holster
Jango Fett Blasters And Holster
4 Piece(s) #RU5089
On
Sale
$41.58
41% 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
$23.08
 
 
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25" Transformers Optimus Prime Movie Sword Costume Accessory
25" Transformers Optimus Prime Movie Sword Costume Accessory
1 Piece(s) #DG22494
$14.99
 
 
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Adults White Astronaut Helmet with Face Shield
Adults White Astronaut Helmet with Face Shield
1 Piece(s) #UR28757
$33.99
 
 
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Toddler Posh Stranger Things™ Demogorgon Costume - Extra Small 12-18 Months
Toddler Posh Stranger Things™ Demogorgon Costume - Extra Small 12-18 Months
1 Piece(s) #DG163709W
Clearance
Price
$25.77
42% OFF
 
 
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Adults Deluxe Darth Vader Gloves
Adults Deluxe Darth Vader Gloves
1 Pair #JWC3024
On
Sale
$11.68
35% OFF
 
 
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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
Clearance
Price
$18.17
44% OFF
 
 
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Baby Star Wars™ The Mandalorian™ Grogu™ Costume
Baby Star Wars™ The Mandalorian™ Grogu™ Costume
5 Piece(s) #14241979
Starting at
$29.48
 
 
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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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Adults The Umbrella Academy™ Agent KG Beast Mask Costume Accessory
Adults The Umbrella Academy™ Agent KG Beast Mask Costume Accessory
1 Piece(s) #MAMXUS115
Clearance
Price
$6.87
74% OFF
 
 
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Star Wars™ The Mandalorian™ Grogu™ Headpiece
Star Wars™ The Mandalorian™ Grogu™ Headpiece
1 Piece(s) #JWC1183
On
Sale
$7.18
10% OFF
 
 
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Men’s Deluxe Star Trek™ Classic Spock Costume
Men’s Deluxe Star Trek™ Classic Spock Costume
1 Piece(s) #13792427
Starting at
$51.07
 
 
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1 3/4" Ghostbusters™ Slimer Glow-in-the-Dark Enamel Pin
1 3/4" Ghostbusters™ Slimer Glow-in-the-Dark Enamel Pin
1 Piece(s) #MASFSP112
On
Sale
$9.18
26% OFF
 
 
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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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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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Kids Red Inflatable Crewmate Killer Costume
Kids Red Inflatable Crewmate Killer Costume
1 Piece(s) #SH21143
Clearance
Price
$31.97
57% OFF
 
 
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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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Men’s Deluxe Star Trek™ Classic Scotty Costume
Men’s Deluxe Star Trek™ Classic Scotty Costume
1 Piece(s) #13792428
Starting at
$27.97
 
 
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Baby Ghostbusters: Frozen Empire™ Posh Flight Suit Costume - XS 12-18 Months
Baby Ghostbusters: Frozen Empire™ Posh Flight Suit Costume - XS 12-18 Months
1 Piece(s) #DG164229W
On
Sale
$14.28
61% OFF
 
 
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Kids White Space Helmet
Kids White Space Helmet
1 Piece(s) #UR20090OS
$21.99
 
 
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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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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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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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Astronaut Helmet with Sounds
Astronaut Helmet with Sounds
2 Piece(s) #AR26
On
Sale
$30.98
68% OFF
 
 
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Adults Star Trek™ Commander Spock Black Wig
Adults Star Trek™ Commander Spock Black Wig
1 Piece(s) #JWC5202
$24.99
 
 
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Women’s Star Trek: Beyond™ Uhura Costume
Women’s Star Trek: Beyond™ Uhura Costume
1 Piece(s) #13792105
Starting at
$40.97
 
 
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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 Deluxe Mighty Morphin Power Rangers™ Pink Ranger Jumpsuit Costume
Kids Deluxe Mighty Morphin Power Rangers™ Pink Ranger Jumpsuit Costume
1 Piece(s) #14289414
Starting at
$36.08
 
 
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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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Toddler Posh Stranger Things™ Demogorgon Costume
Toddler Posh Stranger Things™ Demogorgon Costume
1 Piece(s) #14469670
Starting at
$23.98
 
 
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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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Toddler's Star Wars™ Darth Vader™ Costume - 3T-4T
Toddler's Star Wars™ Darth Vader™ Costume - 3T-4T
3 Piece(s) #JWC0684TL
On
Sale
$17.98
55% 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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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.