Make no mistake about it: the Springwood Slasher is one of the greatest horror villains of all time. Nothing gets fans going like A Nightmare on Elm Street. Hardcore fans who have watched every minute of the fantastic documentary Never Sleep Again: The Elm Street Legacy will probably be familiar with some of what we're about to tell you. Maybe it's a refresher course if you're a Fred Head. Perhaps you've just discovered the son of 100 maniacs. Either way, entering the boiler room, it's easy to get to know the man of many scary dreams just a little bit better. Today we look at 10 things you never knew about Freddy Krueger.

10 Freddy Barely shows up in his first movie.

Seven minutes in heaven is the teenage party game dating back to the 1950s. Seven minutes in hell, on the other hand, would be an appropriate description of the late Wes Craven's original masterpiece. 1984's A Nightmare on Elm Street clocked in at 91 minutes, but Freddy Krueger himself had just seven minutes of screen time. It's an enduring testament to the power of the character in the script and the timeless performance delivered by Robert Englund that so much came from so little.

9 There's a Freddy prequel directed by Tobe Hooper.

The short-lived syndicated television series Freddy's Nightmares was a Twilight Zone style anthology with Freddy as host and occasional character. While audiences were never given a theatrical prequel, the 1988 Freddy's Nightmares pilot actually did the job, courtesy of The Texas Chainsaw Massacre director Tobe Hooper. The episode is called "No More Mr. Nice Guy." 1991's Freddy's Dead: The Final Nightmare depicted a bit of Freddy Krueger's backstory. Krueger's adoptive father was played by shock rock legend Alice Cooper. One of Cooper's greatest hits? "No More Mr. Nice Guy."

8 Freddy escaped on multiple technicalities.

Perhaps a retcon is in order or maybe we can chock it up to multiple trials. In the original film, it's said that Freddy walked from all charges because a police officer bungled the search warrant. But in "No More Mr. Nice Guy," it's said that a cop forgot to read him his Miranda rights. Either way, the Springwood cops really blew it.

7 Freddy almost killed Charlie Sheen.

Charlie Sheen was originally cast to play Nancy's boyfriend, Glen. But according to producer Bob Shaye, the studio just couldn't afford the $3000 per week salary he wanted. The actor who played the coroner in A Nightmare on Elm Street suggested a friend of his to Wes Craven. That friend was of course a kid named Johnny Deep.

6 Freddy ruined his high school reunion.

Speaking of Freddy's Nightmares, the series concluded with the episode "It's My Party and You'll Die if I Want You To," where Freddy shows up to his high school reunion to take revenge on the girl who stood him up on Prom Night. Everyone dies.

5 Freddy has a sidekick.

Fred Heads will be well familiar with Maggie Burroughs, the girl born Kathryn Krueger who was put up for adoption. 'Though Freddy's daughter "killed" her dad in Freddy's Dead, she later teamed up with her pops, even murdering her adoptive father with a bladed glove. This went down in the comic book series Freddy vs. Jason vs. Ash: The Nightmare Warriors, a sequel to the comic book Freddy vs. Jason vs. Ash, which was itself based on an unmade treatment for a Freddy vs. Jason sequel.

4 Freddy doesn't take kindly to rival killers.

Jason Voorhees isn't the only rival serial killer to have tasted Freddy's jealous wrath. In the Freddy's Nightmares Season 1 episode "Do Dreams Bleed?," the Springwood Slasher goes up against a killer called "The Chopper." Terrorized teens are in the middle - namely Springwood High's quarterback and his class president girlfriend. Ever the wicked punster, at one point Freddy declares, "I hate cut-rate competition!"

3 Freddy once took over MTV.

Dream Warriors added a lot of gallows humor and some fantastical set pieces to the franchise, which Elm Street 4: The Dream Master greatly expanded upon. Director Renny Harlin infamously put Freddy on the beach in a pair of sunglasses, which is now one of our favorite memes. As part of the promotional blitz for the movie, Robert Englund appeared in character and full Freddy drag for MTV's Freddy Krueger Hour. During the hour he played a half-dozen music videos, including the directly Freddy related "Dream Warriors" by Dokken, "Love Kills" by Vinnie Vincent Invasion, and "Are You Ready for Freddy" by The Fat Boys, as well as Ozzy Osbourne's "Bark at the Moon," "Owner of a Lonely Heart" by Yes and Alice Cooper's "Welcome to My Nightmare." At the end of the hour, Freddy "kills" MTV personality Kevin Seal.

2 More rappers name drop Freddy than there are souls in his chest.

Yes, Freddy's gruesome chest is filled with the trapped souls of his many victims, but we are still willing to wager that there are more rap lyrics with his name in it. Here's just a small sampling of the rappers who have given Freddy a shout-out in song: Big Daddy Kane, Tupac, Eminem, Kendrick Lamar, Meek Mill, Migos, Lupe Fiasco, Lil Uzi Vert, Lil' Wayne, Mac Miller, Young Thug, Redman, El-P, Ludacris, Riff Raff, Waka Flocka Flame, The Game, Ice-T, Geto Boys, Gucci Mane, and many, many more. And of course there's the aforementioned Fat Boys song. There's also "A Nightmare on My Street" by DJ Jazzy Jeff and the Fresh Prince, which thanks to a legal battle, isn't technically about Freddy. There was even a sticker on the album that said as much.

1 Metal bands love Freddy, too.

S.O.D. (Stormtroopers Of Death), the side project formed by two guys from Anthrax, their former bassist who went on to be in Nuclear Assault, and their frenemy Billy Milano, released the song "Freddy Krueger" as part of their debut album, Speak English or Die. Milano's next band, M.O.D., followed with "Man of Your Dreams," which contains the lyrics: "You thought he was dead / It was just in your head / You better get ready for Freddy / He'll laugh and use your blood to paint the walls."