Shop By
Active Filters:
Reset Filters
Skip Left Nav
Jump to Top of List

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

(482 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)
 
 
Quick View
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)
 
 
Quick View
Pointed Latex Ears Alien Blue
Pointed Latex Ears Alien Blue
1 Piece(s) #FA30BU
Clearance
Price
$1.37
90% OFF
 
 
Quick View
Women's Mighty Morphin Power Rangers Deluxe Pink Ranger Costume
Women's Mighty Morphin Power Rangers Deluxe Pink Ranger Costume
1 Piece(s) #14108406
Starting at
$49.99
 
 
Select Options
 
Adults Deluxe Darth Vader Gloves
Adults Deluxe Darth Vader Gloves
1 Pair #JWC3024
$17.99
 
 
Quick View
Boy's Deluxe Star Wars™ Yoda Costume
Boy's Deluxe Star Wars™ Yoda Costume
1 Piece(s) #13769323
Starting at
$57.97
 
 
Select Options
 
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
 
 
Quick View
Toddler's Star Wars™ The Mandalorian™ Costume - 3T - 4T
Toddler's Star Wars™ The Mandalorian™ Costume - 3T - 4T
3 Piece(s) #JWC0683TL
On
Sale
$17.98
55% OFF
 
 
Quick View
Pointed Latex Ears
Pointed Latex Ears
1 Piece(s) #FA30FL
Clearance
Price
$1.97
86% OFF
 
 
Quick View
Boy's Deluxe Toy Story 4 Buzz Lightyear Costume
Boy's Deluxe Toy Story 4 Buzz Lightyear Costume
1 Piece(s) #14263746
Starting at
$54.99
 
 
Select Options
 
Adults Light-Up Gray Alien Mask
Adults Light-Up Gray Alien Mask
1 Piece(s) #MR131534
On
Sale
$6.98
20% OFF
 
 
Quick View
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
 
 
Quick View
Kids Ultra Prestige Halo Infinite™ Master Chief Costume
Kids Ultra Prestige Halo Infinite™ Master Chief Costume
1 Piece(s) #14469618
Starting at
$268.99
 
 
Select Options
 
Kids Star Wars™ Darth Vader™ Half Mask
Kids Star Wars™ Darth Vader™ Half Mask
1 Piece(s) #JWC1189
$13.99
 
 
Quick View
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
 
 
Quick View
Adults The Umbrella Academy™ Diego Hargreeves Mask Costume Accessory
Adults The Umbrella Academy™ Diego Hargreeves Mask Costume Accessory
1 Piece(s) #MAMFXUS101
On
Sale
$7.98
70% OFF
 
 
Quick View
Adult Star Wars™ Classic Lando Calrissian Wig & Mustache - 2 Pc.
Adult Star Wars™ Classic Lando Calrissian Wig & Mustache - 2 Pc.
1 Piece(s) #13828564
Clearance
Price
$24.97
13% OFF
 
 
Quick View
Kids Silver Astronaut Halloween Costume
Kids Silver Astronaut Halloween Costume
1 Piece(s) #14305078
Starting at
$26.98
 
 
Select Options
 
Men's Star Wars™ Boba Fett Mask
Men's Star Wars™ Boba Fett Mask
1 Piece(s) #RU32846
On
Sale
$51.98
14% OFF
 
 
Quick View
Kids Ghostbusters™ Handheld PKE Meter
Kids Ghostbusters™ Handheld PKE Meter
2 Piece(s) #DG120279
$15.99
 
 
Quick View
Women's Deluxe Jyn Erso Costume
Women's Deluxe Jyn Erso Costume
1 Piece(s) #13792120
Starting at
$63.97
 
 
Select Options
 
Kids Toy Story™ Buzz Lightyear Spaceship Wheelchair Cover
Kids Toy Story™ Buzz Lightyear Spaceship Wheelchair Cover
1 Piece(s) #DG118579
$37.99
 
 
Quick View
Astronaut Helmet with Sounds
Astronaut Helmet with Sounds
2 Piece(s) #AR26
On
Sale
$30.98
68% OFF
 
 
Quick View
1 3/4" Ghostbusters™ No Ghost Symbol Glow-in-the-Dark Full-Color Enamel Pin
1 3/4" Ghostbusters™ No Ghost Symbol Glow-in-the-Dark Full-Color Enamel Pin
1 Piece(s) #MASFSP110
$10.49
 
 
Quick View
Boy's Deluxe Red Star Trek Uniform Costume - Large
Boy's Deluxe Red Star Trek Uniform Costume - Large
1 Piece(s) #RU883593LG
Clearance
Price
$10.77
69% OFF
 
 
Quick View
Toddlers Muscle Transformers™ Bumblebee Jumpsuit Costume - 3T-4T
Toddlers Muscle Transformers™ Bumblebee Jumpsuit Costume - 3T-4T
1 Piece(s) #DG104909M
$40.99
 
 
Quick View
Kids Ghostbusters™ Ecto Goggles Accessory
Kids Ghostbusters™ Ecto Goggles Accessory
1 Piece(s) #DG120289
$15.99
 
 
Quick View
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
 
 
Quick View
Star Wars™ The Force Awakens™ Boy's Stormtrooper Costume
Star Wars™ The Force Awakens™ Boy's Stormtrooper Costume
1 Piece(s) #RU510191T
On
Sale
$16.38
67% OFF
 
 
Quick View
Women's Star Wars™ Stormtrooper Tutu
Women's Star Wars™ Stormtrooper Tutu
1 Piece(s) #13789174
Clearance
Price
$16.17
26% OFF
 
 
Quick View
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
 
 
Quick View
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
 
 
Quick View
Kids Inflatable Jurassic World™ T-Rex Costume
Kids Inflatable Jurassic World™ T-Rex Costume
1 Piece(s) #13768547
FLO's
DEAL
$45.97
42% OFF
(22)
 
 
Quick View
Adults Inflatable Ghostbusters Staypuft Man
Adults Inflatable Ghostbusters Staypuft Man
1 Piece(s) #DG120169
$87.99
 
 
Quick View
Kids Halo Infinite™ Master Chief Gloves
Kids Halo Infinite™ Master Chief Gloves
1 Piece(s) #DG105079
$15.99
 
 
Quick View
Men's Astronaut Costume - XXL
Men's Astronaut Costume - XXL
1 Piece(s) #UR28004XXL
$49.99
 
 
Quick View
Star Wars™ The Mandalorian™ Grogu™ Shoulder Sitter
Star Wars™ The Mandalorian™ Grogu™ Shoulder Sitter
1 Piece(s) #JWC1182
On
Sale
$17.08
25% OFF
 
 
Quick View
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
 
 
Quick View
Kids Star Wars™ Obi-Wan Kenobi™ Blue Lightsaber™ Costume Accessory
Kids Star Wars™ Obi-Wan Kenobi™ Blue Lightsaber™ Costume Accessory
Each #JWC3734
$21.99
 
 
Quick View
Boy's Halo™ Master Chief Lightup Mask
Boy's Halo™ Master Chief Lightup Mask
1 Piece(s) #DG24441
$60.99
 
 
Quick View
Kids Star Wars™ The Mandalorian™ Half Mask
Kids Star Wars™ The Mandalorian™ Half Mask
1 Piece(s) #JWC1179
On
Sale
$4.48
59% OFF
 
 
Quick View
Boy's Classic Power-Up Muscle Mighty Morphin Red Ranger Costume
Boy's Classic Power-Up Muscle Mighty Morphin Red Ranger Costume
1 Piece(s) #14277495
Starting at
$21.98
 
 
Select Options
 
Women's Deluxe Stranger Things™ Max Costume
Women's Deluxe Stranger Things™ Max Costume
1 Piece(s) #14469672
Starting at
$25.78
 
 
Select Options
 
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
 
 
Quick View
Ghostbusters™ Ghost Trap
Ghostbusters™ Ghost Trap
1 Piece(s) #DG120299
$15.49
(2)
 
 
Quick View
Star Wars™ Kylo Ren Light-Up Lightsaber
Star Wars™ Kylo Ren Light-Up Lightsaber
1 Piece(s) #JWC3735
$20.99
 
 
Quick View
Antenna Headband
Antenna Headband
1 Piece(s) #MR158040
On
Sale
$1.98
69% OFF
 
 
Quick View
Adults The Umbrella Academy™ Cha Cha Mask
Adults The Umbrella Academy™ Cha Cha Mask
1 Piece(s) #MAMFXUS103
On
Sale
$30.98
42% OFF
 
 
Quick View
Transformers Optimus Prime T7 Movie Blaster Costume Accessory
Transformers Optimus Prime T7 Movie Blaster Costume Accessory
1 Piece(s) #DG124709
$12.99
 
 
Quick View
Kids Toy Story Buzz Lightyear Gloves
Kids Toy Story Buzz Lightyear Gloves
1 Pair #DG18043
$10.49
 
 
Quick View
Ghostbusters™ Slimer Overhead Vinyl Mask - One Size
Ghostbusters™ Slimer Overhead Vinyl Mask - One Size
1 Piece(s) #MATTSP118
$68.99
 
 
Quick View
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
$25.77
53% OFF
 
 
Quick View
Adults Star Wars™ The Mandalorian™ Half Mask
Adults Star Wars™ The Mandalorian™ Half Mask
1 Piece(s) #JWC1180
On
Sale
$7.18
46% OFF
 
 
Quick View
Adults Star Wars: A New Hope™ Stormtrooper E-11 Blaster Rifle Costume Accessory
Adults Star Wars: A New Hope™ Stormtrooper E-11 Blaster Rifle Costume Accessory
1 Piece(s) #JWC6812
$34.99
 
 
Quick View
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
 
 
Quick View
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
 
 
Quick View
Boy’s Muscle Chest Transformers™ Bumblebee Costume
Boy’s Muscle Chest Transformers™ Bumblebee Costume
1 Piece(s) #14289417
Starting at
$20.97
 
 
Select Options
 
Adults Star Wars™ Darth Vader™ Half Mask
Adults Star Wars™ Darth Vader™ Half Mask
1 Piece(s) #JWC1190
On
Sale
$5.98
53% OFF
 
 
Quick View
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
$25.18
 
 
Select Options
 
Star Wars™ Sith Lord Lightsaber
Star Wars™ Sith Lord Lightsaber
1 Piece(s) #RU3955
Clearance
Price
$19.57
56% OFF
 
 
Quick View
Adults Mighty Morphin Power Rangers™ Red Ranger Helmet
Adults Mighty Morphin Power Rangers™ Red Ranger Helmet
1 Piece(s) #DG79724
$22.99
 
 
Quick View
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
 
 
Select Options
 
Adults White Astronaut Helmet with Face Shield
Adults White Astronaut Helmet with Face Shield
1 Piece(s) #UR28757
$33.99
 
 
Quick View
Boy’s Deluxe Toy Story™ Buzz Lightyear Costume
Boy’s Deluxe Toy Story™ Buzz Lightyear Costume
1 Piece(s) #14263793
Starting at
$22.47
 
 
Select Options
 
1 2 3 4 5 ... 8

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.