Fictional extraterrestrial
kind of fictional creature that does not originate on Earth
XLR8
Watcher
Super Giant
Arm-Fall-Off-Boy
Beefcake the Mighty
Beep the Meep
Chief Examiner
Egg Fu
Way Big
Forerunner
He-Man
Captain Hero
Andrea Quill
Black Doom
Steppenwolf
Four Arms
Ditto
Icon
Elder Thing
Kirby
Lady Styx
Mind
Princess Aura
Sky Smith
Blok
The Life Entity
Worm
Wraith
Tok'ra
ALF
Brood
Jha'dur
martians