Hellboy is a superhero created by Mike Mignola for Dark Horse Comics. Hellboy's real name is Anung Un Rama and he was brought to Earth to end life as we know it. However, the half-demon was discovered as a baby by the Allied Forces and was adopted by Professor Trevor Bruttenholm who loved him like a son.

Hellboy, with his red skin, horns, and tail, was kept in secret for some time by the B.P.R.D (Bureau for Paranormal Research and Defense). Hellboy later ed the international non-governmental agency as a lead agent, where he used his demonic abilities to fight crimes of the supernatural order.

Hellboy is often seen in the comic book series with his B.P.R.D colleagues: Abe Sapien, Elizabeth 'Liz' Sherman, Roger, Kate Corrigan, and his foster father, Buttenholm. Since Hellboy was raised among humans, he is taught the difference between good and evil, resulting in him making morally sound decisions. Even after learning his origin and destiny, Hellboy continues to fight for justice. While not your average take on a superhero, Hellboy is more than deserving of the title.

Here are the 15 Mind-Blowing Things You Didn't Know About Hellboy.

15. Hellboy III Would Have Had Liz Going Up Against Hellboy

The success of the first two Hellboy films would have seemingly paved the way for a third movie. Initially, Guillermo Del Toro's involvement with The Hobbit hindered the development and production of Hellboy 3. Even after Del Toro departed from The Hobbit, the director didn't return to the Hellboy franchise.

In a Reddit AMA, Del Toro revealed that the third Hellboy would contain a fulfillment of Hellboy's "inevitable destiny, to become the beast of the Apocalypse and having him and Liz face the sort that part of his nature."

Del Toro added that the character's duality as a half-human, half-demon and how it affected his relationship with Liz would have made for "a very interesting ending to the series."

14. The Story Behind Hellboy's Big Right Hand

Fans who've only seen the Hellboy movies and haven't read the comics may be confused as to why Hellboy has one hand that is bigger than the other. The reason is that his right hand is actually an artifact.

The Right Hand Of Doom is believed to be the hand of a spiritual being known as Anum. It is believed to be the sacred object of Hyperborea that created and then bound the dragon Ogdru Jahad. It is an artifact of immense value and the stone object is said to be the key that could bring about Ragnarok (basically the end of the world).

The hand was ed down through many generations to Hellboy's demonic father Azzazel. Azzazel chopped off his newborn son's hand and replaced it with The Right Hand of Doom before sending his son to Earth. Hellboy grows to protect this oversized hand and uses its powers for good.

13. The Reason Hellboy Was Rejected By DC Comics

Hellboy was born to Sarah Hughes in 1681. Hughes was a woman who practiced witchcraft and this lead her to summon a demon. Surprisingly, she then proceeded to fall in love with said demon.

While her affair with the demon would later bring her nothing but misery, it did result in the birth of her third child. This turned out to be Hellboy. Being a half-demon, his ensuing birth resulted in a burst of flames and Hughes died shortly after.

This was the origin story that Hellboy creator, Mignola, pitched to the board of directors at DC Comics who, at the time, were thinking of expanding their plethora of heroes. They intended to introduce some new superheroes via their Vertigo Comics label. It is said that the directors loved Hellboy, but didn't like the fact that the character centered so heavily on hell.

12. Hellboy's Met Everyone From Batman To Buffy The Vampire Slayer

Despite Hellboy not being part of DC Comics, he has has met the DC heroes Batman and Starman. The three heroes met in a two-issue comic book miniseries.

In the first issue, "The Golden Age Starman", Starman, otherwise known as Ted Knight, is abducted by Neo-Nazi Skinheads. This prompts Hellboy and Batman to team up to rescue him. In the second issue, Hellboy teams up with the new Starman, Jack Knight, to find Ted Knight and bring his captor to justice.

Hellboy has also met with Buffy the Vampire Slayer, albeit briefly. The half-demon made an appearance as a gladiator in a dimension where Buffy and Angel were captured and forced to fight. According to Mignola, he and Buffy creator, Joss Whedon, talked about doing a proper crossover between the two characters, but Whedon's busy schedule prevented that from happening.

11. Hellboy's Girlfriend Wasn't Liz In The Comics

Unlike the movies, Hellboy's paramour in the comics isn't Liz Sherman, the pyrokinetic who works alongside him at the BPRD. Instead, Hellboy only has one love interest in the comics: Alice Monaghan.

Hellboy first met Alice when she was a child. She had been kidnapped by the fairies and was raised as their child since they couldn't have any of their own. Alice remained with them until Hellboy rescued her. As a result of her time spent with the fairies, Alice can now see them even though they remain invisible to most humans.

Alice and Hellboy reunite several decades later when Alice is an old woman. Surprisingly, Alice looks far younger than expected as she ages slower than other humans. This allows her to maintain her relationship with Hellboy.

10. Hellboy's Human Destiny

One of the biggest twists for Hellboy fans was the revelation that the red-skinned superhero was actually a descendant of King Arthur. In the latter-half of The Wild Hunt miniseries, it was revealed that not only did Hellboy have a destiny to rule hell, but he also had another destiny that had to do with the human part of him.

It turned out that his mother, apart from being a witch, was different for another reason. Sarah Hughes was actually the daughter of Mordred, the son of King Arthur.

Hellboy also found out that since he was the first male descendant of Mordred, he was the rightful King of England and that he alone would be able to draw Excalibur from the stone.

9. Hellboy Can Only Be Killed On One Condition

Hellboy has superhuman strength that stems from his powers as a demon. Not only is Hellboy incredibly strong, he also possesses what is known as the healing factor, which allows him to recover from injuries no matter their severity.

Hellboy has also been shown to work out frequently and some of his strength stems from keeping himself in top shape. As a result, the half-demon is able to hurl objects from incredible distances and can survive heavy gunfire.

His right arm, which is dubbed The Hand of Doom, also holds immense powers, allowing Hellboy to essentially destroy the world if he pleases. It is also thought that the superhero can't be killed unless he is evil. While other demons can be killed by holy objects, Hellboy can remain unaffected as long as he is good. This is due to his human side that stems from his mother.

8. Hellboy's Weird Ageing Process

Hellboy doesn't age like humans. He is shown to be two years old when he tries pancakes (his favorite food) for the first time, but he appears much older than that. In fact in 1954, when he was just 10 years old, the superhero had already begun to look like a fully grown man.

While this strange way of ageing is quite unusual to humans, it is revealed in the comic series that this ageing system is identical of that of other supernatural beings in the Underworld.

The lifespan of demons is said to be in decades and in the Hellboy movie, the B.P.R.D describes it as ageing in "reverse dog years". Throughout the course of his life, Hellboy spends most of his time in an adult body.

7. His Original Design

Funnily enough, Hellboy was created at the 1991 Great Salt Lake Comic-Con where creator, Mike Mignola, drew a demon and wrote "Hellboy" on the monster's belt. The creature was quite unlike Hellboy, as it was covered in hair, had wings, and wore a belt with fish and crabs on it.

The comic writer didn't plan to do anything serious with the creature, but it eventually became the basis for the red half-demon. According to Mignola, the character was inspired by his own father who worked as a cabinet maker.

Mignola's father would often tell him stories of horrific work accidents in a gruff, nonchalant manner. This way of speaking would become a well-known characteristic of Hellboy.

6. He has Met multiple Celebrities

Hellboy has been considered an important person by many celebrities in the comic series. The President initially asked Professor Broom to conceal Hellboy's identity and, in return, be provided with a bigger building for the B.P.R.D. However, his identity was revealed to many trusted celebrities.

Albert Einstein flew to New Mexico to meet with him and ended up spending an enjoyable evening with Hellboy, finding him utterly delightful. Hellboy even compared the hairstyles between Professor Broom and Einstein, stating that he liked Einstein's hair better.

Another famous person that Hellboy met in the comics was Joseph Stalin. Initially, Stalin thought Hellboy was a hoax, and thought that the pictures he'd seen of him must be fake. Upon meeting Hellboy, Stalin was enamored by the superhero's horns, which left Hellboy feeling quite uncomfortable.