A villain is an individual who is devoted to wickedness. They are often depicted as fictional characters in movies or tv shows, but many everyday people could be villainous.
Positive: Dreaming of a villain being caught could represent how God is exposing your enemies and giving you favor or adventage over them.
Negative: In a dream, seeing a villain hiding and sneaking around could represent the craftiness of your enemies and the need to keep a watchful eye.
(Psalm 118:7; Psalm 54:7; 1 John 5:4; Jeremiah 1:19; Revelation 12:11).