Killer Croc
General Information
Real name: Waylon Jones
First Appearance: Batman: Arkham Asylum, (Batman #357 January 1984)
Created by: Gerry Conway
Curt Swan
Affiliations: None; formerly the mob
Abilities: Ability to survive underwater for large periods of time
Enhanced strength and durability
Portrayed by: Steve Blum

"Tick Tock! Feed the Croc!"
―Killer Croc, during one of the game over screens[src]

Born with a rare skin disease that only worsened over time, Waylon Jones was put under the guardianship of his incredibly abusive and alcoholic aunt after his mother died giving birth to him and his father abandoned him. Brutally abused in his home and locked up in a closet like an animal as his aunt drank and engaged in sexual activities and relentlessly bullied at school, Waylon accepted his place in society as always being seen as a monster. Murdering his aunt after finally reaching his breaking point, Waylon fled from society and eventually joined a traveling circus where he was made part of the freak-show, becoming known as Killer Croc.

Bonding with his fellow performers in the show, Jones finally felt as if he had a family, until a horrendous attack occurred at Gotham City by vicious audience members, destroying the circus and killing all whom Jones felt attachment for. Seeing humanity as a disgusting waste of flesh, Jones became a cannibal murderer, often employing himself to the mob for money, before being apprehended by Batman. As the years went on, Jones's condition would make him more and more into a monster, eradicating any traces of humanity that might have been left as Croc became a monster in body and spirit. Always seeking his next meal, Croc has never forgotten the scent of Batman and lusts to kill and devour the hero in retribution for his capture at his hands.


Born with a rare mutation that made his skin green and scaly, and which grew his body to grotesque proportions, Waylon Jones was raised by an alcoholic aunt and bullied relentlessly for his appearance. He briefly worked as a carnival freak under the name Killer Croc, but his misanthropy grew as did his bestial nature, pushing him to a life of crime. As his physical condition and mental state deteriorate, Killer Croc becomes a more bestial foe, increasingly detached from humanity.

Height: 11 ft

Weight: 580 pounds


  • Killer Croc has incredibly thick, tough skin and razor-sharp teeth and claws
  • An expert wrestler, his strength and stamina are at a near-superhuman level
  • Heightened senses, and extremely fast reflexes
  • Able to survive in water for extended periods of time
  • An intense hatred of humanity
  • Cannibalistic

Batman: Arkham Origins

See: Killer Croc (Batman: Arkham Origins)

Batman: Arkham Asylum

"I've got your scent, Batman...I WILL HUNT YOU DOWN."
―Killer Croc to Batman upon the latter's arrival to Intensive Treatment[src]

Killer Croc was one of the many inmates of Arkham Asylum at the time of the Joker's takeover. He resided in the sewer system of Arkham where the staff fed him meat and just tried to "forget about him". When Batman was escorting the Joker through the Intensive Care unit, Killer Croc was being escorted by some of the staff (Including Louie Green), with a shock collar around his neck to keep him under control. Croc spotted Batman and claimed that he would hunt him down very soon. He was then taken back to his lair by a number of asylum security personnel when the Joker took control of the Asylum. He saw Batman passing by a locked door adjacent to the sewer. Croc punched the door's window, claiming that he would get Batman soon.

Ark mans standard GameOn 122

Batman and the Joker bypass Croc on the way to the Intensive Treatment Center.

Eventually, Batman was forced to enter Croc's lair in order to retrieve the antidote to the 'Titan' drug, which the Joker was experimenting with on some of the patients. Batman soon learned of the antidote's location after a discussion with Poison Ivy. He then followed another villain, the Scarecrow, down into the sewers who threatened to dump his fear gas into the water supply, which would lead straight to the Gotham River. Before he could do so, however (unaware to Scarecrow that the Arkham sewers was Killer Croc's new cell), Croc jumped out of the water and grabbed Scarecrow. Batman attempted to subdue Croc by activating his shock collar with a batarang. Croc flinched for a moment before jumping back into the water, dragging Scarecrow down with him. Batman made his way to Croc's lair, where Croc attacked him several times, only to be repeatedly foiled by Batman activating his shock collar with batarangs. Eventually, Croc cornered Batman at the entrance of the lair and charged at him. Unbeknownst to him, Batman had laced the floor with explosive gel and detonated it as Croc ran across it. Croc then plummeted into the water below, vowing revenge on Batman.

In one of the three alternate endings after the credits, Killer Croc emerges from the water by Arkham's docks and grabs onto a floating case of Titan.

Batman: Arkham City

"Your scent is...Different. I smell death on you..."
―Killer Croc to Batman after the latter defeats Ra's al Ghul[src]

Croc remained in the Asylum sewers even after the events that transpired as a result of Joker's plans (implying that that the alternate ending depicting Croc was not canon). After Arkham City was completed and almost open for business, Hugo Strange sent TYGER Operatives to lure Croc out of the sewer system using human body parts as bait, which initially failed, but they were still able to capture Croc after the beast emerged from the sewers once the supply of bodies ran out. He was soon sent to Arkham City, where he roamed the sewers and subway system, murdering and feasting on anyone unfortunate enough to stumble upon him or his hideout. A hidden room can be found, which contains a dirty, broken down mattress, human skulls, and his collar, suggesting that Croc stayed there initially before roaming around the sewers freely.

Mister Hammer led a small group of Joker's men beneath the sewers to control access to the subways, and formed an alliance with Croc, as they both came from a similar past. Croc promised Hammer to only feed on the Penguin and Two-Face's men and to spare Joker's.


Croc beneath Arkham City.

Though Croc is not featured as a main character or adversary throughout the game, he makes a cameo appearance, though only at a specific point in the game's main storyline. After fighting Ra's al Ghul, Batman can throw a Remote Batarang at a switch behind a gate that leads to a sewer exit near the Sionis Steel Mill, at which point Croc will burst out of the wall behind it and attempt to attack Batman. Batman then states that he doesn't want to fight him and just wants to move through.

Croc says that Batman's scent has changed and senses death on him (from the Titan poisoning Joker inflicted on him earlier), remarking that there is no need for a fight as he will feed on Batman's corpse once he dies.

Catwoman mentions Croc as an option to open Hugo Strange's vault. Catwoman and several other inmates then claim that Croc ate Scarecrow during the events of Arkham Asylum.

During the events of Protocol 10 Croc fed on the bodies of any inmates who were killed during Strange's plan and washed up beneath the sewers.

After Batman: Arkham City

While most of the Arkham City inmates were successfully arrested and transferred back to the reopened and refurbished Blackgate Penitentiary after Arkham City's shutdown, Croc was able to escape from the sewers underneath Arkham City and into the swampy outskirts of Gotham. He was eventually captured, tranquilized, and placed within a secured cargo of an aircraft by a specialized team hunting Croc to transfer him to a maximum security prison.

Despite this, Croc was able to wake up from the tranquilizers long before he was ever intended to, likely as a side effect of his continuously advancing mutation, murdered his captors, and escaped from the now destroyed aircraft. Situating himself within an abandoned lighthouse off the coast of the ACE Chemicals factory, Croc continued in his cannibalistic tendencies by capturing random victims, imprisoning them, and devouring them. By the events of Batman: Arkham Knight, Croc has seemingly vanished, with only piles of decomposing bones left behind in the lighthouse as an indication of the killer's activities.

Croc also appears within a fear toxin induced hallucination, now sporting a much larger appearance with spikes and a fully grown tail, before being run over and killed with the batmobile, under Joker's control within the nightmare.

Season of Infamy: Beneath the Surface

Croc converts the wreckage of the downed aircraft, meant to transfer him to a secure prison, into his new base of operations and home. Eventually becoming aware of Croc's recent cannibalistic activities, Batman aims to stop Jones once and for all in a final battle within the craft's wreckage.

Challenge Maps

After the events of Arkham City, Killer Croc made his way to the Iceberg Lounge and watched Batman fight many of The Penguin's men.

Patient Interviews

Batman Arkham Asylum - Patient Interviews of Killer Croc04:08

Batman Arkham Asylum - Patient Interviews of Killer Croc

Killer Croc's patient interview tapes.

Tape One

Patient Interview #1, February 12th

  • Warden Quincy Sharp: Is he here yet?
  • Aaron Cash: He? You're kidding me, right? That thing's not a man. (Killer Croc enters the room.)
  • Warden Quincy Sharp: My God!
  • Dr. Gretchen Whistler: Hello. My name is Doctor Gretchen Whistler. Do you understand me?
  • Killer Croc: Yeah, I hear you, bitch. So, when's dinner? I'm getting hungry.

Tape Two

Patient Interview #2, February 17th

  • Dr. Gretchen Whistler: Taped patient session two, Patient's name: Waylon Jones AKA Killer Croc.
  • Killer Croc: So is this the part where you try and reason with me? Find out why I did it, Doc?
  • Dr. Gretchen Whistler: We're here to help you, Mr. Jones.
  • Killer Croc: You got a cure for me then, Doc? Can you make me... normal?
  • Dr. Gretchen Whistler: Normal is a poor choice of words. No one is really normal, are they?
  • Killer Croc: Figured as much. So how about this Doc? You let me go now, and I won't eat you.
  • Dr. Gretchen Whistler: You don't really eat people. It's just an urban myth.
  • Killer Croc: You think? (Croc laughs) Keep believing that, Doc.

Tape Three

Patient Interview #5, February 25th

  • Aaron Cash: Sit down and shut up!
  • Killer Croc: You think I'm scared of you, Cash? I've got your scent. You're... (Killer Croc is electrified by shock collar)
  • Aaron Cash: And I've got yours too. Know what? It stinks. Carry on, Doc.
  • Dr. Gretchen Whistler: Please don't do that again, Mr. Cash. It's not helping. I'm sorry about the collar, but what can we do if you insist on hospitalizing three guards?
  • Killer Croc: Strap on whatever you like, Doc. This thing just tickles. I'm happy to wait here. Wait for the Bat. He'll be back and I'll kill him. Then Cash. Then you.
  • Aaron Cash: In your dreams. Now get up. Now!

Tape Four

Patient Interview #6, February 26th

  • Dr. Gretchen Whistler: Patient interview. Waylon Jones. Progress has been slow. What happened back in that house?
  • Killer Croc: Just business.
  • Dr. Gretchen Whistler: Business? What kind of business practices result in a house full of mutilated corpses?
  • Killer Croc: I don't like having my time wasted. Someone doesn't pay, they need a lesson. They owed me.
  • Dr. Gretchen Whistler: So you killed them. Tore up their bodies. The police never found all the pieces.
  • Killer Croc: They should have looked in the sewers.
  • Dr. Gretchen Whistler: Are you saying you hid them there?
  • Killer Croc: After a while. Usually takes about 8 hours. *laughs*
  • Aaron Cash: Time to go, Croc. Get up!

Tape Five

Patent Interview #7, February 29th

  • Dr. Gretchen Whistler: Patient interview, Waylon Jones, AKA Killer Croc. Last night the patient was pacified after a break out attempt. Guard Aaron Cash is in hospital. Reports state that the patient attacked Cash and in the struggle consumed his left hand. Cash is lucky to be alive. He lost a lot of blood.
  • Killer Croc: Me too, I nearly choked on that bony hand of his.
  • Dr. Gretchen Whistler: That's disgusting. He could have died.
  • Killer Croc: He's just food to me. And once I get a taste, I want the rest of the meal. You know what I mean?
  • Dr. Gretchen Whistler: Get him out of here. Now! (Security guards begin to drag Croc away.)
  • Killer Croc: Got your scent too, lady! I'll see you around. Tick tock, Tick tock.

Psychological profile (by Dr. Penelope Young)

180px-Killer Croc img

Croc's photo

Psychological Profile: Jones was born with a rare mutation that created a series of physical disfigurements which have worsened intensely with age. His skin is green and scaly and his body has grown to grotesque proportions. While these disfigurements are unquestionably the sources of Jones' various psychological disorders, his intense misanthropy seems to also derive from an understandably difficult childhood which included alcoholic relatives and social rejection by his peers. He increasingly embraces an animalist, subhuman conception of self.

Additional notes

"His acute misanthropy makes him difficult to treat, he refuses to respond to socialization, reacting only when he is acknowledged as a dangerous beast, which is clearly how he views himself. It may be that his physical disfigurements are so severe, he will never be able to truly integrate into human society. This challenge is made clear by repeated (and occasionally successful) attempts to maim and kill the asylum's orderlies and doctors."


Game Over Lines

Batman Arkham Asylum - Game Over Killer Croc00:18

Batman Arkham Asylum - Game Over Killer Croc

Killer Croc's Game Over lines.

Batman: Arkham Asylum

  • "I will enjoy feasting on your bones."
  • "Tick tock. Feed the Croc!"


  • If the player makes Batman move about after Killer Croc comes out of the elevator to spot him, Killer Croc's head will follow him no matter where Batman moves about.
  • In the beginning of the game, Joker can be heard saying, "Tick-tock, tick-tock, is that a crocodile I hear?" This is a nod to Peter Pan, which features a crocodile that at one point swallowed Captain Hook's alarm clock, causing people around it to hear the infamous ticking as it drew near. As another comparison, Peter at one point cut off Hook's hand and fed it to the crocodile. The crocodile, having loved the taste, has now followed Hook wherever he goes in order to eat the rest of him. This is very similar to how Killer Croc devoured Cash's hand and has now developed an intense hatred of him.
  • In Arkham's Medical Facility's Sanatorium, an old prison cell is used as a Riddler Challenge puzzle to unlock Croc's Biography. It is presumed that this was his old cell or perhaps where he was kept when they studied him.
  • Croc is notably thinner in Arkham City, likely due to an inconsistent food supply.
  • Killer Croc cameos in Injustice: Gods Among Us in one of the stage transitions in Arkham Asylum. When the player attacks their opponent near the edge of the Mess Hall arena, they will be knocked into a room where Killer Croc, the Penguin, Two-Face, and the Riddler all attack the fighter before they move on to the Cell Block arena.


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