The fans of the Marvel Cinematic Universe got their first big look this week at the new Spidey villain for Spider-Man: Far From Home. That villain is none other than Mysterio, someone who has been a Spider-Man bad guy almost since the start of his career. However, outside of the comics, not as many people are familiar with Mysterio.

While names like Doctor Octopus, the Green Goblin and Sandman are known to most people, Mysterio might be a little mysterious to those who have never picked up a Spider-Man comic book. To catch everyone up on the villain with a fishbowl for a head, here are some crazy facts that only hardcore fans know about Mysterio.

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10. ORIGINALLY APPEARED AS A HERO

Mysterio in Spider-Man: Far From Home

Mysterio has been around almost as long as Spider-Man. As a matter of fact, his very first appearance was in the pages of Amazing Spider-Man #2 in 1963. Yes, this means that he was one of the first villains that appeared in Spider-Man comics, although he didn't fight Spidey until issue 13.

This is because Mysterio, real name Quentin Beck, originally pretended to be a superhero and not a villain. However, he simply does this to frame Spider-Man for crimes he didn't commit, while pretending to be a hero trying to stop him before his plans are thwarted. It is a very familiar story to anyone watching Mysterio fight as a hero in the new Spider-Man: Far From Home trailer.

9. FOUNDING MEMBER OF SINISTER SIX

Mysterio-us: 10 crazy facts only hardcore fans know about Spider-Man's new enemy

By the time that Marvel Comics was ready to create their first Amazing Spider-Man Annual, they knew that they needed something big. Spider-Man had fought many bad guys in his first year so Marvel got the idea of teaming them all together to try to give Spider-Man a challenge he couldn't easily overcome.

The Sinister Six included many of the villains that first appeared to battle Spider-Man in his debut year, including Sandman, Kraven the Hunter, Electro, Doctor Octopus, Vulture, and Mysterio. After Spider-Man: Far From Home, the only member of the Sinister Six left to introduce into a movie is Kraven the Hunter.

8. POWERLESS

Mysterio-us: 10 crazy facts only hardcore fans know about Spider-Man's new enemy

While Mysterio is one of Spider-Man's deadliest enemies, he actually has no superhuman powers at all. He isn't a genius like Tony Stark, and doesn't possess any type of extraordinary fighting training like Hawkeye. Instead, he was just a movie special effects artist.

Mysterio would use his skills at creating illusions in order to trick his opponents. He also knew how to hypnotize people. Between that and his acting skills, he was able to put himself in the advantage against superhuman heroes like Spider-Man and Daredevil. He also created a suit that had weapons to help him commit crimes.

7. CAN OFFSET ENHANCED SENSES

Mysterio-us: 10 crazy facts only hardcore fans know about Spider-Man's new enemy

While Mysterio doesn't have any special powers, he does have his special effects knowledge that can confuse and throw off anyone that he is fighting. He also has a great weapon that really helps when facing the two men he has fought the most -- Spider-Man and Daredevil.

Quentin Beck has a great deal of chemistry knowledge, which he has used when developing his gas-based weapons. They can cause hallucinations but there is also the gas that he can use that can dilute the enhanced senses -- both Spider-Man's spider-sense and Daredevil's enhanced senses, helping Mysterio hit them with sneak attacks that they would normally see coming.

6. MULTIPLE MYSTERIOS

Mysterio-us: 10 crazy facts only hardcore fans know about Spider-Man's new enemy

When it comes to villains like Doctor Octopus, The Vulture, and the Green Golbin, there is usually just the one villain taking on the role. There has been an updated version of Vulture, making him a younger villain and there was the time that Harry Osborn took over for his dad.

However, when it comes to Mysterio, there have been multiple people who have taken on the role. Outside of Quentin Beck, Daniel Berkhart became Mysterio in 1996, over 20 years after he originally appeared as Jack O'Lantern. In 2002, there was also a mutant named Francis Klum who took on the role of the Spider-Man villain.

5. BRUCE CAMPBELL

Mysterio-us: 10 crazy facts only hardcore fans know about Spider-Man's new enemy

Spider-Man: Far From Home was not supposed to be the first time that movie fans saw Mysterio. Instead, Sam Raimi had plans to bring him into his movies. However, after the studio interfered with Spider-Man 3 and demanded Venom, who Raimi didn't care about, and then nixed his idea to introduce The Vulture, Raimi left.

The Vulture wasn't the only villain he wanted either, as he also wanted Bruce Campbell to portray Mysterio in a cameo in his fourth unmade Spider-Man movie. This would have been fun for Raimi fans as Cambell also had cameos in all three Spider-Man movies that he made. In some trivia, the Ultimate Marvel Universe had an actor named Bruce play Mysterio in a fictional Spider-Man movie.

4. INTRODUCED PETER PARKER AND MILES MORALES

Mysterio-us: 10 crazy facts only hardcore fans know about Spider-Man's new enemy

Marvel Comics brought Peter Parker and Miles Morales together in the comic books before they ever met on the big screen in Spider-Man: Into the Spider-Verse. Miles Morales had become a huge fan favorite and Marvel wanted to find a way to have Peter Parker from the mainstream line meet and work with Miles Morales.

They were introduced in the pages of Spider-Men and the way it worked was that the Mysterio android from Ultimate Spider-Man (created by Quentin Beck when he discovered the Ultimate Universe) accidentally sent Peter Parker to Earth-1610 where he met Miles Morales for the first time and teamed with him to defeat the villain.

3. RESPONSIBLE FOR KAREN PAGE'S DEMISE

Mysterio-us: 10 crazy facts only hardcore fans know about Spider-Man's new enemy

Mysterio was always one of Spider-Man's greatest foes but the fact that he was able to use toxins that could dull super senses made it a no-brainer that Marvel Comics would want to put him up against Daredevil eventually as well.

In the pages of Daredevil Vol. 2, it was Mysterio that became the Man Without Fear's greatest enemy -- for a short time. Mysterio learned he had cancer and wanted to achieve one last feat before he passed on -- he wanted to drive a superhero insane and chose Daredevil for this task. He even hired Bullseye, who took the life of Karen Page while working for Mysterio, taking away one of the hero's closest friends.

2. DEFEATED WILSON FISK

Mysterio-us: 10 crazy facts only hardcore fans know about Spider-Man's new enemy

While Mysterio was an enemy for Daredevil in the main Marvel Universe, he also did something in the Ultimate Marvel Universe to Daredevil's greatest enemy that no one has ever really accomplished in either world before. The Mysterio in the Ultimate Universe was an android created by Quentin Beck from the mainstream universe to conquer a brand-new world.

For anyone who wanted to take over the world in Marvel Comics, they usually have Wilson Fisk, the Kingpin of Crime to deal with. It was no different in the Ultimate Universe and Mysterio knew this so he had the android blow Fisk out of his high story window to his demise hundreds of feet below after the events of Ultimatum in an attempt to become the new Kingpin.

1. RESPONSIBLE FOR OLD MAN LOGAN

Mysterio-us: 10 crazy facts only hardcore fans know about Spider-Man's new enemy

One of Mysterio's key weapons is a toxin that can dull down enhanced senses. That has to be the only reason why he was able to pull one over Wolverine himself. This actually happened on an alternate Earth, in an alternate future -- Earth-807128, the world of Old Man Logan.

The story opened with Logan at the X-Mansion where he saw the mansion attacked by a group of supervillains, many of which were supposed to be deceased. Wolverine went on the attack and ended the lives of all of them, finishing off Bullseye last. However, Logan watched Bullseye turn into Jubilee and then every other villain turned into a member of the X-Men. Wolverine realized he just slaughtered all his teammates due to illusions cast by Mysterio.

NEXT: What Nobody Realised About Mysterio In The Far From Home Trailer (Video)