God ... Holy Spirit
Devil ... Demon
Ghosts
Do the creatures of StarTrek count? LOL
What is a mythical creature that can possess people and/or objects?
Only creatures I know is humans, who would love to possess anything and everything under the sun.
the devil.
Demons posses people.
Satan and his demons are supposed to be able to posses people . . . And "YES", some Believers will even tell you that demons can posses objects . . .
Look Debbie Harrington . . . Real proof of Satan!
Jinn and Loa