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.
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All items (130)
A
- Agents in Black
- Alien (Area 51 Adjacent)
- Alien (Dance Matron of Mayhem!)
- Alien (Grand Theft Robo!!)
- Alien (Planet-Terrorium)
- Alien (Revenge of the Alien)
- Alien (Scooby Doo! Pirates Ahoy!)
- Alien (Scooby Saves the World)
- Alien (Scooby-Doo! Moon Monster Madness)
- Alien (Strange Encounters of a Scooby Kind)
- Alien (The Angry Alien)
- Alien (The Case of the Glowing Alien)
- Alien (The Invasion of the Scooby Snatchers)
- Alien (The Return of Commander Cool)
- Alien (The Roswell Riddle)
- Alien father (Scooby-Doo and the Ghoul School)
- Alien girl (Scooby-Doo and the Ghoul School)
- Alien Monsters (One Night in Roswell Part 2)
- Alien pod clones
- Aliens (A Close Encounter with a Strange Kind)
- Aliens (Scooby-Doo and the Alien Invaders)
- Aliens (Scooby-Doo! Moon Monster Madness)
- Aliens (Scooby-Doo! Where On Mars Are You?)
- Aliens (Spies from the Skies)
- Aliens (The Secret of the Flying Saucer)
- Aliens of Area 49
- Amber
- Anunnaki (Scooby-Doo! Mystery Incorporated)
G
M
S
- Sinestro
- Skeleton Men (Scooby-Doo 2: Monsters Unleashed)
- Skeleton Men (The Scooby-Doo Show)
- Space Alien (Falling Star Man!)
- Space Alien (UFO-No)
- Space Ape
- Space Canine Patrol Agents
- Space Dinosaur from Planet X
- Space Ghost
- Space Kook (Be Cool, Scooby-Doo!)
- Space Kook (Playmobil)
- Space Kook (SCOOB!)
- Space Kook (Scooby-Doo 2: Monsters Unleashed)
- Space Kook (Scooby-Doo! Mystery Incorporated)
- Space Kook (Scooby-Doo! Night of 100 Frights)
- Space-Age Specter (Future Shocked)
- Space-Age Specter (Mission to Monster)
- Spaceman
- Spooky Space Kook
- Spooky Space Kook (My Friend, Scooby-Doo!)
- Spooky Space Kook (Scooby-Doo! Mini Mysteries)
- Spooky Space Kook (Scooby-Doo! Who's Watching Who?)
- Star Creature
- Starfire
- Starman
- Superman