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Powerful Comic Book Villains Who Don't Look Dangerous At All

Let's face it: at first glance, a lot of supervillains look downright laughable when they walk into a room. Sure, a few like Doctor Doom and Darth Vader give off an immediate aura of menace, but the vast majority look more like cosplay rejects from a comic book convention. Comic book artists regularly sketch a lot of weird characters in an attempt to come up with a memorable look and more often than not, they fail to hit the mark.

That being said ... it's important not to judge a book by its cover. A guy who calls himself "The Polka-Dot Man" might invite a ton of ridicule — until he activates his powers and shows you what those polka dots can really do. In a world where mutant powers and advanced technology make people capable of essentially anything, it's very important to know if the guy in the brightly-colored spandex suit can gut you like a fish with his mental powers.

Here are our picks for the most powerful comic book villains who don't look dangerous at all. Because goofy names and questionable fashion choices know no bounds, we're featuring bad guys from both the DC and Marvel Universes. Be warned: like all great villains, the true danger from these bad guys doesn't come from their powers — but the horribly twisted things they are willing to do with them.

The Riddler

Riddler is one Batman enemy who has received a lot of flack from both readers and Gotham's rogues. While his question mark-covered suits have become more fashionable in recent years, they still look pretty silly compared to most supervillain costumes. He's also considered a C-list villain by many criminals who believe his "power" is his compulsive need to leave riddles identifying himself, making it seem like his main ability is to screw things up for himself.

Which is a big mistake. Because Edward Nygma is easily one of Gotham's most brilliant minds — and he's willing to kill you to prove it. A genius with deductive abilities rivaling Batman's, Riddler is also highly skilled at engineering, programming computers, and escape artistry. With these talents, he concocts elaborate head games that place people in death traps where they have to solve his riddles to escape. But even if his victims get the answers right, Nygma inevitably rigs the game, ensuring he gets the last laugh.

In some stories, Riddler grows even crazier, manipulating Batman into completing a Satanic ritual for him in "Dark Knight, Dark City" so Nygma can have his own demon to control. During the "Hush" storyline, Riddler succeeded in deducing Batman's true identity and secretly manipulated all the "A-List" villains, from Bane to Poison Ivy to Joker himself, into tormenting the Dark Knight. Nygma might seem like a ridiculous theme villain, but the truth is he's much, much worse.

Mysterio

With his faceless dome-shaped helmet and magic-like powers, Quentin Beck (aka Mysterio), certainly made an impression on readers when he first appeared in "The Amazing Spider-Man" #13. However, once fans learned Mysterio's "powers" amounted to little more than sleight of hand and special FX wizardry, they quickly saw him as "that lame villain wearing a fishbowl on his head."

Ah, but is he? Like any good magician, Mysterio rarely lets you see what he's truly capable of until you least expect it. This is the guy who was able to fool Spider-Man's spider-sense with his chemical fog and make Peter Parker believe he was going crazy. And although the webslinger has since grown wise to many of Mysterio's tricks, other heroes aren't so fortunate.

Mysterio once concocted an elaborate scheme that made Daredevil's lover Karen Page believe she had AIDS during the "Guardian Devil" storyline. He also artificially inseminated a girl to make her believe she had produced a divine child through immaculate conception, all to drive Daredevil mad. The plot failed — but not before Karen was killed, leaving Daredevil with lasting trauma.

Then there's the horrifying trick Mysterio played on Wolverine in the alternate reality of "Old Man Logan." Using his illusions to fool Logan's perceptions, Mysterio actually got Wolverine to slaughter all the X-Men, an act that reduced the mutant brawler to a shell of himself for years. Mysterio's powers might not be "real," but don't think for a second that they aren't dangerous.

Mandrill

Ape-themed villains have been a comic book staple for a long time, but "The Mandrill," a mutant who first appeared in "Shanna, The She-Devil" #4, looks like a reject from "The Lion King" Broadway musical. The victim of radiation-altered genes, Jerome Beechman was born to white parents but had black skin, body hair, and an ape-like appearance. Shunned by his parents and society, Jerome was left to fend for himself at a young age and later teamed up with Nekra, a vampire-like girl born from the same radiation accident.

What makes the Mandrill really frightening, however, isn't his appearance; it's his mutant power. Jerome's body produces a special pheromone that causes all women to be attracted to him and, over time, become his mindless slaves. Thanks to this creepy ability, he has built a harem/army of warrior women, ready to obey his every command. At one point, he even managed to brainwash Natasha Romanov (Black Widow) and turn her against Daredevil. It's possible the Mandrill's creators were playing with the idea of "animal magnetism" when they imagined him, but the end result ... is just disturbing.

Purple Man

Pheromone-based powers seem to pop up a lot in comic books, with everyone from DC's Poison Ivy to Marvel's Mandrill indulging in a little chemical-based mind control. However, Zebediah Killgrave (aka The Purple Man), took this unnerving ability to a whole new level of wrong.

At first, Killgrave appears to be just what his name suggests — a man with purple skin. A Croatian spy who was exposed to a strange canister of nerve gas, Killgrave discovered the chemicals had permanently dyed his skin purple. In the process, his mutated skin cells constantly produce a special pheromone that causes those affected to become completely compliant to his wishes.

Most comic book stories would just have a villain like this force people to steal for him — and at first, that's just what Killgrave does. However, he soon grows more ambitious and depraved. He brainwashes a woman into marrying him and fathers a child with her. He builds a vast criminal empire in San Francisco. Perhaps worst of all, he mind controls rookie hero Jessica Jones into becoming his love slave for months, leaving her with massive trauma.

Luckily, Jessica gains a psychic failsafe from the X-Men's Jean Grey and later savagely beats Killgrave, granting her (and the reader) a much-needed catharsis. Thanks to his powers and his psychopathic nature, however, Purple Man remains one villain no one should ever have to meet.

Mister Mxyzptlk

While he may look like a silly little man in a bowler hat, few people would deny that Superman's foe Mister Mxyzptlk isn't a powerhouse. An imp from the 5th dimension, Mister Mxyzptlk has the ability to warp reality in our three-dimensional world, essentially giving him carte blanche to brainwash people, turn objects into anything he wants, and even steal Superman's powers.

Since he first showed up in "Superman" #30, however, Mxyzptlk has almost always been portrayed as an annoying but essentially harmless prankster. Sure, his powers might turn Metropolis into a giant funhouse, but he always goes away when Superman tricks him into saying his name backwards — and any damage he causes immediately vanishes, leaving no lasting effects.

That is, until the infamous "Whatever Happened to the Man of Tomorrow?" storyline. An "Imaginary Story" that revealed how the Silver Age Superman met his end, the tale cast Mister Mxyzptlk as the ultimate bad guy, who killed almost all of Superman's friends and foes simply because he decided he was bored of being mischievous and wanted to see what being evil would be like for the next two thousand years. Unwilling to let this happen, Superman breaks his vow against killing and tears the imp apart with the Phantom Zone projector.

Granted, this tale "didn't happen" in any current continuities ... but the fact that it could makes Mr. Mxyzptlk one of the most dangerous villains on this list.

Jamie Braddock Jr.

Some villains put a lot of thought into their costume designs. Then there's Jamie Braddock, the older brother of Marvel's Captain Britain, who commits acts of villainy while parading around in his underwear. Creepy? Absolutely. But he doesn't seem particularly dangerous — until you realize just how powerful and crazy this guy really is.

An Omega Level Mutant, Jamie is one of the most powerful mutants in the Marvel Universe. A god-like being, he has the ability to warp reality, create pocket dimensions, manipulate matter, give himself or others any power he can imagine, and oh yes... resurrect the dead.

Sounds like the powers everyone dreams of having, right? That's the problem. Driven insane by a scientist/sorcerer named Doctor Crocodile, Jamie now believes he's living in a dream world where none of his actions have any real consequences. Thus, he's perfectly willing to maim, torture, and mind control others anyone for his own sick amusement. If you see this guy dancing toward you in his tighty-whities, don't point and laugh. Just run.

The Condiment King

Okay, okay — this Batman villain was intended to be a one-joke bad guy when he first showed up. However, his cult popularity soon caused him to gain a much darker reimagining.

Originally appearing in the "Batman: The Animated Series" Season 3 episode "Make 'Em Laugh," the Condiment King was initially a brainwashed stand-up comedian named Buddy Standler. Made to parade around in a skintight outfit with a pickle-shaped helmet and his underwear over his tights, Buddy sprayed people with mustard and ketchup while making bad condiment puns (i.e. "I knew you'd ketchup to me sooner" or "How I relished this meeting ... Let's see if you can cut the mustard!").

A while later, however, Chuck Dixon and Scott Beatty reimagined the Condiment King for "Batgirl: Year One" #8. Now a man named "Mitchell Mayo," he's easily taken down by heroes like Robin, Batgirl, Black Canary, and Blue Beetle.

However, by "Robin" #171, Robin notes that the Condiment King's paraphernalia does allow him to make certain victims with food allergies go into anaphylactic shock. Given how psychotic Gotham's villains inevitably become, and the fact that the justice department won't take this condiment-themed bad guy seriously, this could indicate that Condiment King might have a future as Batman's most dangerous foe. Yes, seriously.

Stilt Man

It's easy to underestimate this villain, whose appeal seems to begin and end with his name. Wilbur Day is a scientist, inventor, and engineer who stole the designs for a special "hydraulic ram device" and decided to ... build an armored suit with telescopic metal legs so he could rob really high buildings (and presumably reach the top shelf).

Honestly, the initial appeal of Stilt Man was likely all the opportunities he gave artists to play with perspective shots. Since Stilt Man's original enemy was the acrobatic Daredevil, Day's eerie height did probably aid in depicting some innovative fight scenes. Since then, Stilt Man has become a major joke in the superhero community, and even became the inspiration for one of the worst "homage" supervillains when a female fan donned his armor and called herself "Lady Stilt-Man."

But don't underestimate Day's potential as a villain. Ridiculous-looking suit aside, Stilt Man is a bona fide genius who once managed to dupe an entire colony of kidnapped aliens into forming his version of a utopian society — even though he was the one who kidnapped them in the first place. Once Iron Man uncovered Day's secret, however, he revealed the villain's duplicity to the aliens, who promptly gave Stilt Man a major beating.

Polka-Dot Man

Okay, okay ... so maybe the Polka-Dot Man does look like he made his costume out of an old "Twister" game board sheet. But once you learn what those polka dots can actually do, well ... let's just say you'll want to keep your distance.

Created way back in 1962 for "Detective Comics" #300, Abner Krill was a minor crook who decided to become the supervillain "Mister Polka-Dot." The dots on his costume could be removed and were actually sophisticated pieces of technology that could become flying buzz saws, teleporting holes, or even a flying saucer. While considered a somewhat lame villain who eventually sunk into bankruptcy, he once successfully filed a brutality suit against the Gotham City Police Department after Detective Harvey Bullock gave him a terrible beating, forcing Bullock to see a psychiatrist.

Polka-Dot Man got a major upgrade (and a newfound level of both notoriety and respect) in the 2021 film "The Suicide Squad," when James Gunn reimagined as a man suffering from an interdimensional virus that caused glowing polka-dot shaped pustules to grow all over his body. He could expel these dots with a deadly force and actually killed his mother — only to go crazy and see everyone as his mother. Basically, imagine Norman Bates with superpowers. Yeah. Now that's terrifying.

The Spot

The Polka-Dot Man's multicolored spots might be dangerous, but Marvel Comics' character The Spot could probably give Abner Krill a run for his money. Originally a scientist named Dr. Jonathan Ohmn who accidentally fell into an alternate dimension called "Spotworld” that was full of black spots, Ohmn returned to his home reality covered in those black spots, which were actually inter-dimensional portals.

In truth, Ohmn looked a lot like a Dalmatian, and the supervillain name he chose — "The Spot" — was so ridiculous Spider-Man broke into hysterical laughter upon hearing it. However, Spidey learned not to underestimate his opponent when the Spot revealed he could detach his portals and strike at Spider-Man through them. The spots also protected Ohmn, since anybody who hit him would find their arm disappearing into one of his portals. To top it off, the Spot can teleport vast distances by leaping through his black holes.

Despite his incredible powers, Spot wasn't the brightest supervillain; he once rented a car to meet some bad guys, even though he could have just teleported to them. During Spider-Man's "Brand New Day" storyline, however, Spot underwent a major personality shift when his son was killed in a drive-by shooting and began killing members of the Russian mafia, whom he blamed for his son's death. Given how easily the Spot can sneak into secure areas, protect himself from injury, and strike from multiple points simultaneously, it all makes him a very dangerous hitman.

Calendar Man

At first, Calendar Man, a Batman villain who only commits crimes on holidays and certain times in the year, appears to have chosen his theme out of sheer laziness. However, Julian Gregory Day soon got a dark makeover that turned him into the DC Universe's version of Hannibal Lecter.

First appearing in "Detective Comics" #259, Calendar Man wore multiple costumes depending on the date of his crime. For instance, while committing a robbery for the season of spring, he dresses like a flower while his winter crimes see him disguised as a snowman. Later, he began wearing a "calendar cape" made up of the dates of the month. Clearly, this guy was a frustrated cosplayer who used crimes to show off his costuming skills.

All of that changed during "Batman: The Long Halloween," when Batman visited Calendar Man in Arkham Asylum and found him now sporting a creepy, Lecter-type appearance. Like the "Silence of the Lams" baddie, Calendar Man had special insight into Holiday, another serial killer Batman was chasing, but delighted in withholding key information. In the story's sequel "Batman: Dark Victory," he would escape and impersonate a mob boss to convince other criminals to kill themselves. This Calendar Man was a far cry from his original clotheshorse character, but few could deny he had become much more dangerous.

Doctor Light

Comic book retcons can present even the silliest villains in a disturbing new light. Take Doctor Light. For years, this goofy scientist with light-based powers was presented as a minor threat regularly humiliated by the Teen Titans and beaten by "Little Boy Blue and his Blue Boys" — a bunch of ordinary kids.

However, it turns out all of these defeats were engineered by the Justice League for the most horrifying of reasons. During the miniseries "Identity Crisis," we learn Doctor Light was once a serial rapist who raped Sue Dibny, the wife of League member the Elongated Man. In retaliation, the League decides to have the magic-user Zatanna essentially lobotomize him, turning the man into an ineffectual villain who could be easily taken down by minor heroes.

When Doctor Light regains his lost memories and intellect, however, he quickly shows what a major threat he can be. Furious over the way he's been used as the Teen Titans' punching bag, he lures every member of the Titans into one area — and then brutally defeats them all. Considering Light's powers enable him to control anything made of light, including Green Lantern's energy constructs, Superman's heat vision, and the light-based hero The Ray, this makes him insanely powerful. And now that he's got a personal vendetta against the entire Justice League, heroes will need to be on their guard when facing this former "joke" villain.