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28 Arkham Asylum Hidden Characters

KFZ Scrubs

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Are you finished with Batman: Arkham Asylum? No, you’re not. You may have reached the ending. You may have solved all the riddles and collected all the items. You may have visited every room and unlocked every character bio. Until you’ve read this article, however, you won’t fully grasp what those things mean. You won’t fully comprehend all of the game’s geeky tributes and intricate connections. You won’t fully appreciate how much loving fan service Arkham Asylum truly has to offer. We’ll help you. We’ve done the research. We didn’t just scan these characters’ items and move on… we dug into their histories, learned their trivia and discovered why Arkham Asylum’s developers chose to include them. Plus, we’ll reveal the identity of the Spirit of Arkham, “Mad Dog” and the mystery one-armed inmate. Shall we begin?



Ra’s al Ghul



First comic appearance: Batman #232 (June 1971)

Arkham Asylum appearance: Arkham Mansion (Dr. Young’s Office)



The connection: What’s this? A Batman villain that actually stays dead? Don’t be so naive. Ra’s al Ghul is anywhere between 450 and 700 years old, according to the comics, and capable of replenishing his life – as well as decreasing his physical age – through the use of unique chemical pools. A mere body bag and toe tag aren’t going to keep this international terrorist from his goal of decimating the human population.

Sure enough, when you return to this room at the end of the game, his corpse is gone… most likely stolen by his loyal and secretive followers, the League of Assassins. He’ll be alive again in no time.



Bizarro Fun Fact: Batman’s recently revealed son, Damian Wayne, is also Ra’s al Ghul’s grandson. Family reunions are… interesting.







First comic appearance: Detective Comics #66 (August 1942)

Arkham Asylum appearance: Penitentiary (Controlled Access); Arkham North (Guard House)



The connection: Two-Face wasn’t always the bad guy. As anyone who’s ever read a Batman comic or seen a Batman film already knows, he used to be a heroic district attorney to Gotham City, a staunch ally to the Dark Knight and a close personal friend to Bruce Wayne. Until half his visage was horribly scarred and his schizophrenic personality disorder was triggered, he was just Harvey Dent.

In Arkham Asylum, you’ll discover two rooms plastered with “Vote Dent” posters and buttons. One is a cell, which could belong to Two-Face (though the audio at the end of the game confirms he’s since escaped). The other, however, is a guard room. Do the employees here have a twisted sense of humor? Or is Harvey Dent’s election and subsequent downfall still a recent event in this universe? We may find out in a sequel.



Bizarro Fun Fact: “Two-Face” hasn’t always referred to Harvey Dent. At least five other men have temporarily held the mantle, including a small-time criminal, an actor wearing makeup and Batman himself.



The Penguin




First comic appearance: Detective Comics #58 (December 1941)

Arkham Asylum appearance: Intensive Treatment (Transfer Loop); Arkham Mansion (South Corridor)



The connection: The Penguin character is defined by two main traits. First, his use of modified umbrellas as gimmicky weaponry; they can double as anything from guns and knives to lasers and helicopter blades in his pudgy little hands. Who knows what special powers the set in Arkham Mansion hide?

Second, in most storylines, the Penguin is not an insane villain. He’s a wealthy entrepreneur and highbrow society man who runs underground criminal rings through the façade of his Iceberg Lounge… a club that Batman tolerates in order to collect information. Until Danny DeVito’s film portrayal in Batman Returns, the Penguin wasn’t even deformed. If the poster above is any indication, Arkham Asylum’s developers have opted for the classic, gentlemanly, non-monster version as well.



Bizarro Fun Fact: Alfred, loyal butler to the Wayne dynasty, was once a servant of the Cobblepots, Penguin’s family.







First comic appearance: Batman #1 (Spring 1940)

Arkham Asylum appearance: Arkham Mansion (East Wing Corridor)



The connection: Batman inhabits a relatively testosterone-dominated universe, full of male villains, male allies and (young) male sidekicks. So when the rare female character shows up, you know the writers and artists are going to go a little overboard with her.

Such is the case with Catwoman’s ever-changing costume. In her first appearance, she didn’t have one, but since then, she’s worn whiskered cat masks, hoods with cat ears, attached cat tails and skintight catsuits in colors as diverse as purple, green, black and grey. Many iterations have included retractable cat claws like the ones pictured above, and the 2000s Catwoman added infrared goggles to aid in her high-tech, high-stakes thievery. If she appears in a future game, expect this modern interpretation.

Bizarro Fun Fact: Catwoman uses a whip because the weapon requires extensive training. If a random enemy were to knock it from her grip, he would be unable to turn it against her.


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Character list continued


Mr. Freeze




First comic appearance: Batman #121 (February 1959)

Arkham Asylum appearance: Penitentiary (Extreme Incarceration)



The connection: That ice is much more than a visual gag. Dr. Victor Fries, a scientist experimenting with cryogenics to save his terminally ill wife, was accidentally exposed to his own chemicals and now, thanks to an abnormally low body temperature, requires refrigeration to survive. Usually, the bubble-headed suit provides this protection, but the police obviously can’t afford to let him keep that in custody. Thus, the custom-made, frozen prison cell.

Bizarro Fun Fact: Mr. Freeze was originally Mr. Zero. His name was changed for the 1960s television series.

The Ventriloquist and Scarface




First comic appearance: Detective Comics #583 (February 1988)

Arkham Asylum appearance: Penitentiary (Main Cell Block); Arkham Mansion (Warden’s Office); Joker’s Throne Room



The connection: The Ventriloquist is a meek, mild-mannered man who channels his fury and felonies through the puppet Scarface. When they are separated, Ventriloquist is not violent or dangerous whatsoever. The fact that his doll is safely locked away in this glass display case, then, implies that the villain is safely locked away as well.

But for how long? If the Joker can gain access to Scarface so easily in the game’s final scenes, how long until the Ventriloquist is whole again? And how easy would it be to get his trademark Tommy gun out of the Penitentiary, too?



Bizarro Fun Fact: A new, female Ventriloquist was introduced by DC in 2007. She has multiple Scarface dolls and seems to honestly believe that the imaginary character is in love with her.







First comic appearance: Detective Comics #40 (June 1940)

Arkham Asylum appearance: Penitentiary (Security Control Room)



The connection: This is one of the more elaborate character cameos in the game. Enter the Security Control Room and you’ll see a clay-smeared cell with a large sign warning that the prisoner inside may not be who or what he appears to be. Sure enough, the character behind the glass transforms from Aaron Cash to Warden Sharp to Commissioner Gordon within a matter of minutes. Each time, the new face, voice and mannerisms match perfectly.

Clayface, a former actor and now mutated shapeshifter, is very convincing.

Bizarro Fun Fact: The original Clayface had no special powers; he was nothing but a disgruntled B-list movie star, wearing the mask of his most famous film’s villain.







First comic appearance: Detective Comics #184 (June 1952)

Arkham Asylum appearance: Medical Facility (Patient Observation)



The connection: These article clippings are packed with references. According to the first newspaper, Firefly has escaped and Gotham is “on high alert”. No surprise there – the pyromaniac villain is obsessed with burning down the city’s buildings and landmarks.

The second newspaper seems older, and more interesting. Garfield Lynns is Firefly’s real name, but the headline doesn’t seem aware of this fact yet. The “theater no more”? That’s probably Firefly’s first attempt at arson – he tried robbing a theater that way, but was stopped by Batman.


Finally, if you check the shelf next to the newspapers, you'll find Firefly's flame-throwing backpack and nozzle.



Bizarro Fun Fact: Firefly was once the sidekick of Killer Moth. The crime-starting duo was inspired by the crime-stopping duo of Batman and Robin.



The Injustice Gang




First comic appearance: Justice League of America #111 (June 1974)

Arkham Asylum appearance: Medical Facility (Patient Observation)




The connection: On the same newspaper as the Firefly articles is a miniscule headline referring to the Injustice Gang. They’re a team of super villains, working together as antagonists to the Justice League. The word “back” implies that it’s the second formation of the Gang, which would include Joker and Lex Luthor rather than less glamorous members like Floronic Man and Ocean Master.

Bizarro Fun Fact: “Injustice Gang” is a really stupid name.



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Character list continued



Professor Hugo Strange




First comic appearance: Detective Comics #36 (February 1940)

Arkham Asylum appearance: Arkham Mansion (Records Room)



The connection: Professor Hugo Strange is most often portrayed as a master psychiatrist who has deduced Batman’s true identity as Bruce Wayne. Sometimes he attempts to auction this knowledge to the highest bidding villain; other times, he tries to use the knowledge to become Batman himself. Either way, we can guess at what crucial information might be hidden in his files. Is that why they’re so tightly secured in the Arkham Mansion Records Room? You need both a Cryptographic Sequencer and a Line Launcher to get past the electric lock and the electric floor.

Bizarro Fun Fact: One of Dr. Strange’s first schemes was to use asylum patients as test subjects, injecting them with a growth hormone that transformed them into hulking brutes. Hmm, sound familiar?



Mad Hatter




First comic appearance: Batman #49 (November 1948)

Arkham Asylum appearance: Botanical Gardens (Botanical Glasshouse)



The connection: Obviously, the Mad Hatter loves hats. In the comics, he’s been known to turn down food and look away from naked women if they were not wearing headwear of some kind. His alias, however, also arrives from an obsession with the novel Alice’s Adventures in Wonderland, and the chapter “A Mad Tea Party” in particular. While many of the Mad Hatter’s criminal schemes involve mind control, many of his personal pastimes revolve around recreating scenes from that fictional universe. Looks like he continued that hobby in Arkham Asylum… but who were his party guests?

Bizarro Fun Fact: A lot of the Arkham Asylum game’s themes and ideas are inspired by the Arkham Asylum graphic novel, A Serious House on Serious Earth. In that story, the Mad Hatter is revealed to be a pedophile, mirroring similar real-world accusations against Lewis Carroll, the author of Alice’s Adventures in Wonderland.

Tweedledum and Tweedledee




First comic appearance: Detective Comics #74 (April 1943)

Arkham Asylum appearance: Arkham North (Entrance Gate)



The connection: Two more characters who steal their persona from nursery rhymes and Lewis Carroll books… what are the odds? Pretty high in Gotham City, we suspect. While the pair are not considered particularly insane, they do appear in the aforementioned Arkham Asylum: A Serious House on Serious Earth. In that graphic novel, they are connected by a couple of electroshock helmets, with one as the left half of the brain and the other as the right half.

So are the beanies sitting on this seesaw equally complicated? Or are they simple, silly costume hats? We may never find out.

Bizarro Fun Fact: In the comics, the original Tweedledum has died and been replaced by his twin brother. Both are cousins to Tweedledee.



Black Mask




First comic appearance: Batman #386 (August 1985)

Arkham Asylum appearance: Arkham Mansion (Dr. Young’s Office); Medical Facility (Patient Observation)


The connection: Roman Sionis’s parents were obsessed with appearances. They covered up the fact that Roman was dropped on his head as a baby because they feared the social repercussions. They hated Bruce Wayne’s parents, but remained friends with them because it looked good to do so. Because his family always wore metaphorical “masks” in public, Roman chose that theme when he was driven to become a villain. His trademark mask, found in Dr. Young’s office, is carved from the coffin of his dead mother… who he murdered, along with his father. Yuck.

There’s another reference to Black Mask in the newspaper clippings that mention Firefly and the Injustice Gang. “Roman Sionis in court!” screams the headline. This probably refers to the incident in which his cosmetics company rushed a product to shelves and ended up disfiguring hundreds of women.


Bizarro Fun Fact: Black Mask was killed by Catwoman. Not once, but twice.







First comic appearance: Batman #609 (January 2003)

Arkham Asylum appearance: Medical Facility (Surgery Room)



The connection: Hush’s true identity is Tommy Elliot, a childhood friend of Bruce Wayne’s. Like Bruce, he had a wealthy upbringing and traveled the world after his parents’ untimely death. Unlike Bruce, he was the one who killed his parents. When he returns to Gotham City, he works as a famously skilled surgeon before letting an irrational jealousy and hatred of Bruce consume him.

Based on this white board, Tommy Elliot has not yet been revealed as Hush in the Arkham Asylum universe. The alter ego may not even exist yet… but could emerge for a sequel.

Bizarro Fun Fact: As an adult doctor, Thomas Elliot treated a patient named Edward Nigma (aka the Riddler). As a boy patient, Thomas Elliot was treated by Dr. Jonathan Crane (aka the Scarecrow).


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Character List continued


Killer Moth




First comic appearance: Batman #63 (March 1951)

Arkham Asylum appearance: Botanical Gardens (Aviary)


The connection: Would you be surprised if we told you that a low-rent villain called Killer Moth carried a cocoon gun? Of course not. Based on the morbid scene above, however, Arkham Asylum might be going for a darker take on the character. The cocoon gun is supposed to trap victims only – there shouldn’t be a skeleton unless he left his prey to starve up there.

So he’s either seriously sadistic… or he’s Charaxes, a monster that Killer Moth transformed into upon selling his soul to a demon. Yes, this actually happened in a 1995-1996 miniseries. Charaxes secretes an acid that can dissolve human flesh.

Bizarro Fun Fact: Killer Moth really envies Batman’s style. He built himself a Mothcave, drives a Mothmobile and occasionally uses a Moth-signal.



Calendar Man




First comic appearance: Detective Comics #259 (September 1958)

Arkham Asylum appearance: Penitentiary (Main Cell Block)



The connection: Batman villains love their themes, but this guy is ridiculous. His alter ego is Julian Gregory Day, a three-word name that manages to cram in three references to calendars. If you haven’t guessed his modus operandi yet, you’re not even trying. He plans crimes so that they relate to the day on which they are committed. In his Arkham Asylum cell, you can find torn pages for January 1st (New Year’s Day), July 4th (U.S. Independence Day) and November 19th (possibly Thanksgiving). What do the other dates signify?

Bizarro Fun Fact: Calendar Man is often considered a pathetic joke enemy, easily dispatched by the Teen Titans or Power Girl. In the story for Batman: The Long Halloween, however, he is cast as a creepy and clever Hannibal Lecter-like character.








First comic appearance: New Year's Evil: Prometheus #1 (February 1998)

Arkham Asylum appearance: Penitentiary (Guard Room)



The connection: Prometheus is often described as the anti-Batman. Because he witnessed his criminal parents get gunned down by police while a child, he has committed himself to hunting down and destroying law enforcement. Prometheus is the ultimate “cop killer” and, therefore, one of the GCPD’s most wanted felons.

Bizarro Fun Fact: For awhile, the mantle of Prometheus was held by the son of a cop, who murdered his parents because they wouldn’t let him play videogames. Sigh.



Maxie Zeus




First comic appearance: Detective Comics #483 (May 1979)

Arkham Asylum appearance: Intensive Treatment (Patient Pacification Chamber)



The connection: Maximillian Zeus, like so many Batman foes, takes his name far too literally. He has a god complex, honestly believing that he is Zeus, the Greek god of thunder, sky and lightning. This explains the symbols and mythology book found in his Arkham Asylum cell, which is hidden behind a wall in the Patient Pacification Chamber.

That location is significant as well. In the graphic novel, Arkham Asylum: A Serious House on Serious Earth – the same story referenced for the Mad Hatter and Tweedle entries – Maxie Zeus is addicted to electroshock therapy, calling the currents “fire from heaven”.

And thus, the indignant clue from the Riddler: “Even I was shocked when I saw how Maxie Zeus was treated!”



Bizarro Fun Fact: In the same disturbing comic story mentioned above, Maximillian is implied to be a coprophiliac, meaning that he derives pleasure from feces. Come to think of it, his cell does look a bit dirty…

The Creeper




First comic appearance: Showcase #73 (March 1968)

Arkham Asylum appearance: Intensive Treatment (Utility Corridor); Penitentiary; Final Boss Fight



The connection: Jack Ryder is a news reporter on Gotham radio and television. During the investigation of an experimental scientist, he is injected with a serum that gives him unnatural strength, speed and agility. In this wild animal-like form, he is known as the Creeper. In some versions of the character, Jack Ryder and the Creeper are unaware of their shared body; in the most recent version, for example, Ryder hosts a TV show offering rewards for the capture of his alter ego.

In Arkham Asylum, you’ll only encounter Jack Ryder. He has two radio appearances, including a report about Batman’s rumored death on the island. At the end of the game, Jack Ryder is the journalist covering Joker’s rooftop theatrics.



Bizarro Fun Fact: In 1968, the Creeper starred in his own comic book series. It was cancelled after six issues.


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Character List Continued


The Ratcatcher




First comic appearance: Detective Comics #585 (April 1988)

Arkham Asylum appearance: Botanical Gardens (Ventilation System)



The connection: The Ratcatcher is like Aquaman, only much, much lamer. Instead of communicating with fish, he talks to rats. Instead of commanding a legion of sharks or sea turtles, he leads an army of furry, diseased vermin. This guy definitely got the short end of the superpower stick.

Even his gear, which is hidden in Arkham Asylum’s ventilation system, is unremarkable. Gloves and a gas mask. Most likely the same equipment he used when he worked as an actual rat catcher for the city. We still haven’t figured out what the book means, though. Any ideas?

Bizarro Fun Fact: The Rat King, a baddie from Teenage Mutant Ninja Turtles, has nearly identical powers and originated four years earlier.



The Great White Shark




First comic appearance: Arkham Asylum: Living Hell #1 (July 2003)

Arkham Asylum appearance: Medical Facility (Morgue)



The connection: Warren White was a selfish businessman who embezzled millions of dollars from his clients, poor and rich alike. In order to avoid a long prison sentence, he pleads insanity and is transferred to Arkham. As might be expected, this plan does not work out very well and, by the end of his origin story, White has had gills cut into his neck by Killer Croc and has lost his fingers, lips, ears and nose in Mr. Freeze’s refrigerated cell.

Did you wonder what the bits and pieces floating in that specimen jar were? Well, you’re probably not wondering anymore.

Bizarro Fun Fact: GamesRadar produced an entire week of coverage based on sharks in videogames. Unbelievable, but true!



Humpty Dumpty




First comic appearance: Arkham Asylum: Living Hell #1 (July 2003)

Arkham Asylum appearance: Botanical Gardens (Flooded Corridor)



The connection: “All the king’s horses, and all the king’s men, couldn’t put Humpty together again.” This centuries-old nursery rhyme clearly inspired the creators of Humphry Dumpler, a recently introduced Batman character. He’s not only shaped like a fat, bald egg – he also loves breaking things so that he can then try fixing them.

He usually fails. And when Humphry “broke” his grandmother so that he could sew her body’s pieces back together with shoelaces, he ended up in Arkham. If these broken toy soldiers are indeed his handiwork, his repair skills haven’t improved a terrible amount.

Bizarro Fun Fact: Humpty Dumpty’s parents were crushed and killed by a falling Christmas tree.



Amadeus Arkham




First comic appearance: Batman #258 (October 1974)

Arkham Asylum appearance: Arkham East (Cemetery); Arkham Mansion (North Corridor)



The connection: Amadeus Arkham is the original founder of the asylum in which the game takes place. His mother was mentally ill and, after her mercy killing at his hands, he converted their former home into a treatment facility. Not long after the asylum’s opening, however, he was visited by horrific tragedy and became an insane resident himself. You can see his gravestone in the Arkham cemetery, or visit the cell where he resided after his descent into madness. You can also, of course, listen to his entire tragic story as you collect the Chronicles of Arkham.



Bizarro Fun Fact: There’s nothing “fun” about Amadeus Arkham. Read the next two entries for proof.



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Character List Continued

Martin “Mad Dog” Hawkins



First comic appearance: Arkham Asylum: A Serious House on Serious Earth

Arkham Asylum appearance: Botanical Gardens (Flooded Corridor)

The connection: Okay, this is pretty brutal… but it’s also one of the cleverest references in the game. Mad Dog Hawkins is an escaped convict who breaks into Amadeus Arkham’s home and rapes – then murders – his wife and daughter. Sadly, that’s not the worst part. He also scratches his name into the wife’s body and decapitates the daughter, placing the latter’s head in a dollhouse for Amadeus to discover.


So how does Batman: Arkham Asylum, a Teen-rated game, pay tribute to these terrifying acts of violence? You’ll come across a statue of a woman in the Botanical Gardens. The inscription plate, which pays tribute to Amadeus’s wife, has been vandalized with the same words that adorned her body… the head has been chopped off and deposited in the flowerbed below. Ouch. No wonder the poor old man lost his mind, eventually killing Mad Dog through excessive electroshock.

Random fun fact: In the Warden’s office, there’s another inscription plate on the wall, this one seemingly written to Amadeus’s daughter.





The Spirit of Arkham




Astoundingly, the story of Amadeus Arkham is not finished. Collect enough of his chronicles and you’ll realize that the founder’s spirit is living on in another, still living man. The voice you assumed was that of Amadeus alone begins retelling stories of Harley Quinn’s turn to evil, Killer Croc’s capture and the Joker’s escape. These events all occurred long after the original Arkham’s death.


So who is carrying on his work, or at least believes he is doing so? Who is now planning to kill inmates rather than treat them? Stop reading now if you want to figure out the mystery on your own…

Taking yet another cue from the graphic novel A Serious House on Serious Earth, the game reveals that the “spirit of Arkham” has taken hold of the current administrator. In the Arkham Asylum comic, that’s Dr. Cavendish, who dons Amadeus’s mother’s wedding dress and battles Batman with a razor knife. In the Arkham Asylum game, it’s Warden Sharp, who disappears from the asylum altogether, leaving only a cryptic message behind.


Above: Arkham’s biggest mystery – solved



Mystery One-Armed Inmate



Finally, you may have noticed this super creepy dude pacing and muttering to himself in the same room as Clayface. He’s way too detailed and unique in appearance to be a random NPC, but we couldn’t match him to a DC character no matter how hard we tried. Then we remembered the Arkham Asylum contest announced last year – the winner’s face would be rendered somewhere in the game. That “somewhere” is here. Interestingly, if you scan the inmate’s skeleton with Detective Mode, you’ll see that his missing limb isn’t missing at all. He’s just hiding it behind his back. Sorry for calling you “super creepy”, contest winner guy, but that’s just weird.


Also, we’re totally jealous.

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"Are you finished with Batman: Arkham Asylum? No, you’re not. You may have reached the ending. You may have solved all the riddles and collected all the items. You may have visited every room and unlocked every character bio. Until you’ve read this article, however, you won’t fully grasp what those things mean. You won’t fully comprehend all of the game’s geeky tributes and intricate connections"

But these are bios and most are riddles so most people have seen these lol. Nice post though.

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