Many anime heroes are defined by stereotypically attractive qualities, like Herculean feats of strength and chiseled features that naturally draw people closer. This is usually a deliberate decision in order for an author to make audiences feel as closely connected with (and sympathetic for) the protagonist as possible.

RELATED: 10 Controversial Anime Characters Who Spark Debates Among Fans

However, there are dozens of heroes who would be horrifying to encounter in real life for one reason or another. By identifying how they'd put people off or even drive them away, we are grateful for the fact that they are purely fictional.

10 Shinra Enters Intense Confrontations With An Off-Putting Smile (Fire Force)

Shinra smile

Ever since childhood, Shinra has coped with high-stress situations by smiling. He describes it as a reflex that he can't control, though it has nonetheless been portrayed as unsettling and even demonic by those around him.

Considering that he's also able to conjure flames as a Third Generation fire user, the young hero is given an unholy appearance that can chill the most stoic individuals. Since he's lost control of himself once before (due to the influence of the First Pillar), Shinra would make for an uncharismatic savior.

9 Alphonse Is A Walking Suit Of Animated Metal Armor (Fullmetal Alchemist)

alphonse blocking lust fullmetal alchemist

Alphonse Elric is a walking suit of metal armor with harrowing magenta eyes. A blood seal tethers his soul unnaturally to the mortal world and serves as the one weak spot that can permanently destroy him.

Considering Alphonse's resonating voice and absence of physical form, it would be easy to mistake him for a monster or malevolent spirit. Ironically, such a preconception is the opposite of the young boy's gentle and nurturing disposition. Nonetheless, his alchemic abilities and metal exterior would give any rational individual pause before approaching.

8 Gang Orca Was Chosen As A Hero Licensing Proctor For His Villainous Appearance (My Hero Academia)

Gang Orca prepares for battle in My Hero Academia

Gang Orca was specifically chosen to proctor the Hero Licensing Exam for his fearsome appearance. His aesthetics and presentation render him among the series' most daunting forces for good, especially when he is accompanied by his legions of "underlings."

In real life, it would be terrifying to come across a man with a deep, guttural voice and prominent orca features. His Quirk's capacity for mass destruction makes the hero even more intimidating and unapproachable by the discerning public.

7 Ban's Powers Are Gory & Brutal (Seven Deadly Sins)

Ban Pointing At The Scar On His Neck In Seven Deadly Sins

Ban's "Fox Hunt" ability allows him to telekinetically rip the hearts from his opponents' chests and pull them into his hands. Although often used for good, this skill is inherently villainous and would send a typical person into a panic at the excessively gory display.

RELATED: Seven Deadly Sins: 5 Reasons Ban Is A Great Hero (& 5 Why He's Better Off A Villain)

Their shock would be exacerbated after realizing that the rogue could recover from any injury as if nothing had happened to him on account of drinking from the Fountain of Youth. Considering the nature of his powers, one might mistake Ban for a demon, just like his captain.

6 Kankuro Has Killed Children With His Macabre Puppets (Naruto)

Kankuro Shippuden

Although debuting as a villain, Kankuro became an ally of the Leaf alongside Gaara after his brother's redemption. Nonetheless, he was still responsible for murdering children, as proven through his victory over Sakon and Ukon during the Sasuke retrieval mission.

Moreover, his usage of toxins and cruelly grinning puppets are hallmarks of evil, especially when complemented by his entirely black ensemble and vicious war paint. Unfortunately for the Sand ninja, his preferred method of combat is daunting to most observers.

5 Brook Is A Talking, Cackling Skeleton (One Piece)

Brook meets Luffy in One Piece.

When Brook first made his appearance, even the battle-hardened Straw Hat crew was put off by him. As a walking, talking skeleton, Usopp perceived him as an unholy spirit and attempted to exorcise him with a crucifix.

RELATED: One Piece: All Straw Hat Pirates, Ranked By Maturity

Despite a jovial demeanor, Brook's mannerisms do not do him any favors either. He will often cackle hysterically in times of grave distress and request that women show him their underwear. Such antics would make typical people seek to avoid the gaunt skeleton regardless of how pleasant his music might be.

4 Miroku's Wind Tunnel Has Potential For Collateral Damage (Inuyasha)

Miroku inuyasha

Miroku was given a curse by Naraku that made his hand suction in whatever he pointed it towards. Although he generally kept his affliction under control with the usage of prayer beads, he often weaponized it in combat against his enemies.

However, the monk can barely keep his abilities contained and nearly killed his comrades on numerous instances. Should Miroku enter the real world, people would flee from him the moment he was forced into a confrontation.

3 Alucard Was A Blood-Drinking Sadistic Vampire (Hellsing)

Alucard Smiling with red glowing eyes Hellsing

Alucard was a vassal for Integra Hellsing and her organization's most valuable soldier. He was able to defeat the Iscariot and Millennium organization's forces simultaneously, only slowing down after accidentally drinking corrupted blood specifically designed to kill him.

He was often just as manic and eager to fight villains as they themselves were, and carried himself with a defined sense of ruthlessness. During Seras Victoria's painful transformation into a vampire, Alucard often taunted her with fresh blood in order to evoke her true nature and relish her discomfort (even if he was responsible for saving her in the first place).

2 Bucciarati Has Interrogated His Enemies' Decapitated Heads (JoJo's Bizarre Adventure)

Bruno Bucciarati uses his stand Zipper Man against Giorno in JoJo's Bizarre Adventure.

Although Bucciarati was one of the JoJo's series' most noble heroes, he is just as ruthless as his criminal background suggests. After capturing one of his foes, he used his "Zipper Man" Stand to decapitate them and string their head up by an eyelid, all while his friends gloated over their victory.

Additionally, he is technically undead and can sever the limbs of others with no clear explanation (as Stands are invisible to the untrained eye). Between these factors, most ordinary people would attempt to avoid him.

1 Eren Could Transform Into A Menacing Giant In Seconds (Attack On Titan)

Eren Silences The Room

There are a number of reasons why average people would find Eren terrifying. Not only was he obsessed with revenge against the rest of the world (in other words, all non-Eldians), he was capable of transforming into a fifteen-foot-tall titan in a matter of seconds.

Even the soldiers of Paradis didn't trust him at first despite how he defeated dozens of pure titans before returning to the Scouts. Given that, he'd be even more terrifying and inexplicable in real life.

NEXT: Attack On Titan: 5 Characters Eren Could Defeat (& 5 He Couldn't)