Frederick Charles "Freddy" Krueger is a serial killer and the main antagonist of the Nightmare on Elm Street series. A family ... Weaknesses. Freddy cannot spread his influence beyond Springwood, unless he uses his daughter to get there. If he is killed, he cannot return if no one remembers him or is afraid of him. read more
The key to defeating him according to the first three movie is to bring him into the real/waking world as opposed to the dream-world, and he has been killed numerous times in the series including via ‘love’ in the first sequel. read more
His weakness is people not being afraid of him. If people don't fear him, he has no power over them. read more