This category is for creatures that do not originate from Earth, whether fake or real. Many aliens are evil, but there are some that are kind and peaceful.
Trending pages
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Spooky Space Kook -
Crystal (Scooby-Doo and the Alien Invaders) -
Skeleton Men (Scooby-Doo 2: Monsters Unleashed) -
Amber -
Skeleton Men (The Scooby-Doo Show) -
Alien (The Return of Commander Cool) -
Space Kook (Be Cool, Scooby-Doo!) -
Alien (Area 51 Adjacent)
All items (84)
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Alien (Area 51 Adjacent)
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Alien (Planet-Terrorium)
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Alien (Revenge of the Alien)
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Alien (Scooby-Doo! Moon Monster Madness)
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Alien (Strange Encounters of a Scooby Kind)
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Alien (The Case of the Glowing Alien)
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Alien (The Invasion of the Scooby Snatchers)
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Alien (The Return of Commander Cool)
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Alien (The Roswell Riddle)
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Alien father (Scooby-Doo and the Ghoul School)
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Alien girl (Scooby-Doo and the Ghoul School)
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Alien pod clones
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Aliens (A Close Encounter with a Strange Kind)
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Aliens (Scooby-Doo and the Alien Invaders)
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Aliens (Scooby-Doo! Moon Monster Madness)
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Aliens of Area 49
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Amber
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C
E
G
H
J
K
M
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Mammoth Mutt
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Martian Manhunter
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Martian Manhunter (The Brave and the Bold)
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Mister Mind
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Moltar
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Mongul
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Moon Monster
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P
R
S
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Sinestro
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Skeleton Men (Scooby-Doo 2: Monsters Unleashed)
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Skeleton Men (The Scooby-Doo Show)
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Space Alien (UFO-No)
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Space Ape
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Space Canine Patrol Agents
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Space Dinosaur from Planet X
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Space Ghost
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Space Kook (Be Cool, Scooby-Doo!)
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Space Kook (Scooby-Doo 2: Monsters Unleashed)
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Space Kook (Scooby-Doo! Mystery Incorporated)
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Space-Age Specter (Future Shocked)
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Space-Age Specter (Mission to Monster)
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Spooky Space Kook
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Spooky Space Kook (Scooby-Doo! Who's Watching Who?)
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Star Creature
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Starfire
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Starman
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Superman
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