All spoilers regarding the Super Rookies era are unmarked. Examples relating to the New World era can be spoiler-tagged if deemed necessary.
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Also known as the "Underwater Prison" or the "Great Prison", Impel Down is the World Government's prison for all kinds of criminals and pirates. Imagine a fusion between Alcatraz and the "Inferno" of The Divine Comedy and you get the idea.
The prison is divided into six levels. The higher number of the level, the higher the bounties of the prisoners kept inside, and on each level there is a different kind of torture:
- Level 1: Crimson Hell: The prisoners are forced to run from the guards and the blue gorillas through a forest made of trees with leaves as sharp as razors. For this reason, the leaves, stained by the prisoners' blood, appear red. If one wants to avoid the torture, there's a giant hole that leads to level 2. Buggy used to be in this level, and avoided torture thanks to his devil fruit.
- Level 2: Wild Beast Hell: The halls are inhabited by dangerous beasts like manticores, giant scorpions and a basilisk who chase and devour any prisoner they enconter, while a large sphinx guards the exit. For this reason, the prisoners prefer to stay in the jails. Buggy says that all the prisoners from this level have a bounty higher than his (15 million berries).
- Level 3: Starvation Hell: This level is hot and has a desert-like terrain, while the prisoners are kept in a near death state, fed just enough water and food to keep them from starving. All the criminals with a bounty higher than 50 million berries are kept here. Benthan also used to be there despite having a bounty of 32 million.
- Level 4: Blazing Hell: This level is even hotter than level 3 (whose heat in fact comes from the level below) due to the presence of a large pool with boiling blood. There the prisoners are constantly working supplying wood logs in the pool or under torture. Daz Bones used to be kept in this level.
- Level 5: Freezing Hell: In contrast to the level above, this one is a desolate tundra where prisoners either die because of the freezing cold (which is so intense the prisoners lose pieces of their bodies due to frostbites) or starvation (due to the food becoming frozen and inedible). In this level there is also the wolf unit, that has been moved from level 2 to level 5 because the wolves used to hunt down and eat the other beasts! Criminals with a bounty higher than 100 million are kept here, and Magellan sends Luffy here after having captured him.
- Level 5.5 : Newkama Land: Not an actual level but a hidden and secret sublevel carved long ago. It's inhabitated by okamas and ruled by "Queen" Ivankov. After the latter escapes with Luffy, Bentham becomes the new "Queen".
- Level 6: Eternal Hell: The lowest level, reserved exclusively for criminals so strong and/or dangerous that they are basically "erased" from history, to the point that even this level's existence is considered a legend. The prisoners are fed and left alone, letting them die out of boredom, like Shiki who, after a while, was almost Driven to Suicide. Ace used to be here before being moved for his execution. Jinbe, Crocodile and some of the new Blackbeard Pirates used to be here too. After his defeat and capture, Doflamingo is being kept here.
- The Alcatraz: It's the One Piece world's best prison. The only ones able to escape are Shiki, who had to sacrifice his own legs, and Luffy, with the help of many strong allies and lots of luck.
- Boring, but Practical: A literal example in Level 6. The prisoners there are so tough that every torture practice available just bounces off them. So how does one punish someone that strong? The answer is you don't. You just feed then leave them with nothing to do until they want to die from sheer boredom.
- Circles of Hell: While Impel Down is not exactly hell, it's based off the Inferno from The Divine Comedy, which codifies this trope, and every level has a different torture.
- Hellhole Prison: This prison is one of the worst portrayed in fiction, with only the toughest prisoners able to endure the terryfying tortures without going crazy or wishing to die. Considering how some of the staff members are dressed like devils and the levels are like Circles of Hell, it's the closest it can get to a literal example of the trope.
- Homage: The prison is built like Hell in The Divine Comedy.
- Gender Bender: One of the staff is a recipient of Ivankov's ability. Surprisingly, they react well to their "true form" and help Ivankov as a result.
- Prongs of Poseidon: The Weapon of Choice of Impel Down's mooks is a trident, to reflect its Dante's inferno-esque inspiration.
- Putting on the Reich: The commanding guards and wardens are typically dressed in this fashion (except for Hannyabal), especially Magellan, right down to the arm band. Despite this, they're, for the most part, good guys and have good intentions.
High Ranking Staff Officers
(Former) Chief Warden / Vice Warden Magellan
Voiced by: Mitsuaki Hoshino (JP), Jeremy Inman (EN)
Age: 45 (Pre-Timeskip), 47 (Post-Timeskip)
Birthday: October 9th
Debut: Chapter 528 (Manga), Episode 425 (Anime)
Magellan is the chief warden of Impel Down, the most feared and impenetrable dungeon in the One Piece world. As such, he is a very imposing man with a very stern, business-like manner. Even when things get out of hand, he keeps up his professional manner, inspiring hope and admiration in much of the prison staff. Forms a bit of an Odd Couple with Vice-Warden Hannyabal, a Crouching Moron, Hidden Badass Starscream, who, despite his eccentricities, Magellan endorses as his successor.
Magellan has the power of poison, granted by the Venom-Venom Fruit (Doku Doku no Mi), and is consequently one of the most dangerous fighters in the story. He can cover himself and others with poisonous corrosive slime, and emit posion gas (which he's able to breathe). The effects of his poison can manifest themselves in a variety of ways, from blinding tear gas to paralyzing neurotoxins. As a side effect, Magellan has taken a liking to actually ingesting poison, and while it can't kill him, it gives him severe bowel troubles, forcing him to spend much of his time relieving himself. After the Impel Down arc, he gets beaten to an inch of his life and has to be hospitalized and sedated to prevent him from killing himself. He eventually gets over it, but is still demoted to Vice Warden during the Time Skip, much to his dismay.
- Acid Attack: While his Devil Fruit technically grants him power over poison, one of his attacks, where he creates a three-headed hydra out of thick purple vitriol, behaves nothing like actual poison and a lot like acid, melting and dissolving anything it comes in contact with.
- Acquired Poison Immunity: Parodied. Thanks to his devil fruit, he can eat poisonous food. However, they give him diarrhea, so he's busy on the toilet most of the time.
- Advancing Boss of Doom: Once Magellan gets involved, most of the focus is on staying ahead of him because very few people in Impel Down can seriously challenge him. Once he enters his Venom Demon form, though, he becomes this in truth: a rapidly-advancing wall of red sludge so toxic it can even infect stone, much less any hapless prisoner who failed to outrun it.
- Animal Motifs: His face is quite similar to that of a baboon.
- Anti-Villain: Many fans see him and the less-evil members of the Impel Down staff in this light, as they do their jobs to ensure normal, ordinary citizens can rest easy knowing murderers, rapists, and thieves are safely locked away. The fact that he clearly didn't approve of Shiliew senselessly slaughtering prisoners for fun is a testament to this.
- Arc Villain: He's the primary antagonist of the Impel Down arc, and never appears following that arc, but he's by no means an actual villain.
- Authority Equals Asskicking: As the prison warden of Impel Down, he enjoys reminding unruly prisoners who is the boss. By melting them. Dude even beats Luffy and renders his Determinator quality worthless.
- Bad Boss: Subverted with Hannyabal. Despite their bickering, they get along occasionally. Played straight with other subordinates as he usually breathes poison gas on them to keep them in line. Also, he doesn't show any hesitation of using his poison attacks while they are in the vicinity.
- Bad Powers, Good People: You'd think there wouldn't be much "good" to do with a power that revolves entirely around fatally poisoning mass amounts of people. But Magellan put it to good use by becoming the warden of world's toughest prison, where most of the inmates certainly deserve a good poison bath.
- Blade Below the Shoulder: His horns are detachable and can be worn on his hands to function as this. He can also infuse them with his poison to make them more lethal.
- Bunny-Ears Lawyer: Spends very little time actually doing his job on account of being occupied in the bathroom suffering intense bouts of diarrhea for several hours a day, but God help you if you have to actually face him. A slight subversion in his case though, as when Shiliew was still Head Jailer (replaced by Sadi Chan), Shiliew was actually considered more dangerous because he was actually around more often, and likely too competent for his job for his own good.
- Characterization Marches On: Initially on his first appearance he was a Crouching Moron, Hidden Badass who was as lecherous as his vice warden and acts slightly goofy on the job, but when compared to his later characterization of a completely No-Nonsense Nemesis who takes his job very seriously and is extremely unfettered in his devotion to his position, it's rather amazing to see the difference. (To be fair, that was before everything in the prison went to shit.)
- Combat Pragmatist: He has his silly moments, but during fights, he does not screw around. When he runs across Blackbeard's crew, he doesn't even bother asking why they're there without official permission; he just one-shots them all on sight.
- Claustrophobia: Inverted. It was hinted he had the opposite problem agoraphobia, the fear of open spaces making him well-suited to his job as warden of the facility.
- Curb-Stomp Battle:
- Him vs Luffy. Guess who won? Hint: It wasn't Luffy.
- Later happens again when Blackbeard invades the prison. Magellan just bathes the whole pirate crew in poison and leaves them writhing in pain while he continues to pursue the jailbreakers. The second time around, though, he's not so lucky.
- Dangerous Forbidden Technique/Poison Is Corrosive: His ultimate poison Kinjite (literally "Foul Hand"), which he uses in Hell's Judgement technique, which he's forbidden from using because it can potentially melt all of Impel Down.
- Deadly Gas: His power courtesy of his Devil Fruit abilities.
- Demoted to Dragon: His fate post timeskip. He took it in strides though.
- Does This Remind You of Anything?: Dresses like an SS officer and uses poison gas... Oy.
- The Dreaded: Most characters react to the idea of Magellan appearing the same way—with an Oh, Crap!. The only people that ever try to pick a fight with him are usually over confident, unaware of his strength, or Too Dumb to Live.
- Driven to Suicide: He's so distraught about allowing so many prisoners to escape Impel Down that he has to be sedated to keep him from killing himself in shame.
- Even Evil Has Standards: Ax-Crazy Chief Jailer Shiliew's rampages across Impel Down killing off prisoners had made Magellan less than pleased, particularly as he had no damn reason for doing so, and he was forced to imprison him in Level Six as he was far too dangerous to be ignored. Subverted/justified in that he's not actually evil, just an antagonist.
- Godzilla Threshold: Faced with a prison riot, an escape attempt involving countless Level 6 prisoners, and the sudden appearance of Blackbeard, he authorizes Shiliew's temporary release to deal with the latter. He really, really didn't want to resort to that, but considering Impel Down was being attacked by no less than three separate groups at once (two of which containing some serious heavy hitters), he was kind of out of options. And too bad for him, it didn't end well.
- Good Cannot Comprehend Evil: He can't understand why Luffy would try to invade the greatest prison in the world to save Ace, a criminal that is to be executed.
- Good Is Not Nice: His methods are rather brutal, and his main goal is to keep those dangerous criminals locked up so they don't harm innocent civilians.
- Good Scars, Evil Scars: After getting in another fight with the Blackbeard Pirates (and they newly acquired members), he gets beaten badly and is left with some scars on his face which is still present after two years.
- Hero Antagonist: He's brutal, but still fair and reasonable; the only reason that he's even coming into conflict with Luffy is because Luffy's goals (freeing Ace) just so happens to conflict with his own (keeping order and making sure that a bunch of incredibly powerful and dangerous criminals stay locked up). If it wasn't for the conflict of interest, he'd be more than happy to live and let live.
- Horn Attack: Played With. His "horns" are fake and he can detacth them to wear them on his hands as weapons.
- Horned Humanoid: Subverted. He has a pair of long horns that help give him a demonic appearance, but they're actually fake.
- Implacable Man: In the second half of the Impel Down arc, he's basically an Advancing Wall of Doom. No one wants to fight him, anyone who gets caught in his poison is left for dead so more people don't die, and by the last chapter of the arc, only a very small percentage of the original escapees manage to get out alive. However later subverted off-screen. Turns out he gets beaten to within an inch of his life after Luffy left, by the Blackbeard Pirates and their new recruits.
- It's Personal: At first he only tries to stop Luffy from escaping because it's his job. But when he finds Hannyabal beaten badly from his fight with Luffy, that gives him more motivation to stop Luffy.
- The Juggernaut: Let's be clear about something. The entire second half of the Impel Down Arc basically amounts to Luffy and the gang running away from this guy. And that's not even going into when he uses Venom Demon: after that, Mr. 3's wax (Elemental RockPaperScissors which is immune to his normal poison) can barely slow him down for a few moments.
- Large and in Charge: He's both tall and really broad and is the chief warden of the prison. After the time-skip, he's the vice warden.
- Made of Iron: And how! Even by the standards of this show, Magellan is ridiculously durable. The man's tanked everything from bullets to cannon fire and it doesn't seem to even faze him. Even Luffy's Gear Second attacks, which could seriously injure a normal opponent and send them flying through a room, can at the most bring him to his knees. The only real wound he suffers is a blow to the forehead from his fight with Ivankov, not that it did much. This record gets broken when he is beaten by the Blackbeard Pirates, who give him some scars on his face.
- Make an Example of Them: If you fuck with him in front of other prisoners, he will reduce you to sludge on the spot to show them what happens when you piss him off. It's quite good at helping him maintain order because no one wants to be the next "example".
- Mighty Glacier: Never moves at a pace faster than a brisk walk. He moves faster using Venom Road, but he only does so to reach places he can't get to via walking. Still, he's hard to take down while it's better avoid his attacks at all costs.
- My Greatest Failure: He's so broken after having failed to prevent the escape that he has to be sedated to prevent him from committing suicide, and doesn't protest when he's demoted from chief warden.
- Nice Job Fixing It, Villain!: His fight with Luffy were he nearly killed him resulted in Luffy gaining poison resistance so high he is practically immune to it, allowing him to fight later enemies that also use poisons, like Caeser.
- No-Holds-Barred Beatdown: Luffy tried to do what had always worked until then and thought being The Determinator would let him blow right past Magellan. It didn't end well for him.
- No-Nonsense Nemesis: He does not fuck around. If he thinks you're a threat, he doesn't even bother asking any questions and just goes straight for the kill.
- Obviously Evil: Subverted; despite his appearance and what not, his goals and motives are only technically evil in the sense that they conflict with Luffy's. If anything, he's more of a Knight Templar, in that anyone who comes to his prison must be a terrible criminal. For the most part, he's correct. However, he does work for the World Government, which means that people they deem as too dangerous, which could be even as simple as political dissidents, could land there.
- One-Man Army: He could kill every single person in Impel Down if he wanted to. He has also one-shotting the Blackbeard Pirates simultaneously.
- The Paralyzer: He can generate all kinds of poisons, including paralytics.
- Person of Mass Destruction: He could potentially destroy all of Impel Down if he decided to.
- Poisonous Person: His Devil Fruit allows him to produce and control different types of poisons, from toxic gas to paralytic neurotoxins and all the way to hyper-corrosive acid.
- Punch-Clock Villain: The most straight up example here. He is merely doing his job and keeping dangerous inmates in prison. He only comes into conflict with Luffy because the latter is attempting to break Ace out of jail, something he cannot allow.
- Purple Is Powerful: Well, his poison is a sickly purple looking colour and is a powerful paralysis-inducing toxin.
- Putting on the Reich: He and most of Impel Down's staff dress very similarly to Nazis, right down to the armband. However, he has actually good intentions.
- Rank Up: Inverted. Because he couldn't prevent the mass escape, he goes from chief warden to vice-warden.
- Red Eyes, Take Warning: When he summons his Kinjite poison. The sign that you really should run away.
- Red Right Hand: Subverted. Despite his demonic appearance and Bulgori-like hands, he is only evil in the fact that he's working for the World Government, and is just trying to keep bloodthirsty criminals behind bars.
- Shaping Your Attacks: Hydra is hydra-shaped while Venom Demon: Judgemant of Hell takes the shape of a huge skull-faced demon.
- Sorting Algorithm of Evil: Subverted. While his overall strength is unclear in comparison to characters such as the shichibukai or the Admirals, he still has one of the best combat performances of any Arc Villain. He's one of the few villains in the series to hand Luffy a complete and utter defeat without any rematch thus far. Later enemies in the New World, especially those that use poison, are less of a threat due to Luffy's own experience with Magellan's poison.
- Story-Breaker Power: Magellan has the Toxin-Toxin Devil Fruit, one of the most effective Devil Fruit in the series. Everything about him, from his sweat, to his skin, to even his breath are all poisonous and he has different varieties from poison that acts like tears gas to poison that can make your skin melt. He can also generate massive waves of poison out of himself, create hydra heads of pure poison to attack people, and any contact with him or his attacks instantly poisons the target. His poison is so powerful that it can kill a person within minutes unless an antidote is administered. However, if you get hit by too many poisons, you're too far gone to be cured and are sentence to a slow and painful death. The worst part is even if you have some sort of ability that could block the poison, such as Mr 3's Wax Wax Fruit, he can just make his poison so strong that it melt steel. Plus, he isn't even a logia type, so he doesn't have any of the usual weaknesses of a logia Devil Fruit user.
- Super Strength: Even before he powers himself up with poisonous food, he's stronger than most men, given his huge size. Poisoned food, used to fuel his powers, cranks it up to superhuman levels.
- Superpower Lottery: Magellan's ability to manipulate poison makes him a very deadly opponent. His ability to coat himself in a layer of poison makes it nigh impossible for opponents to fight him in close combat without killing themselves. And if you try to run away, he has many ranged options such as Hydra, Venom Blowfish or Venom Road. When he really means it, he can also use Hell's Judgement above. And even without his poison, Magellan himself is a hulking tank of a man who is ungodly tough to take down. With this kind of powerset, is it any wonder he's the warden of a maximum security prison?
- Technicolor Toxin: Usually purple, unless he gets mad. In that case it turns red.
- Terror Hero: Well, not a hero by any means, but in the grand scheme of things, he's generally a morally good character whose take-no-shit attitude and tendency to go straight for the kill is designed to sow fear among prisoners to help make maintaining order easier. Given the fact that the prison holds some of the world's worst criminals and a breakout would spell disaster, this is not the worst approach to take.
- Touch of Death: Played Straight and Subverted, in a way. If you're a normal person (as in not a Determinator), you'll die if he touches you all right; but it won't be painless and instantaneous. You will suffer.
- Trademark Favorite Food: His favorite food is the poison soup (which he can eat because of his Devil Fruit) and he likes it so much that he eats despite it knowing it will cause him to spend hours on the toilet.
- Tranquil Fury: Spends the second half of the arc boiling mad from everything that's happening but keeping it all under the surface.
- Tyke Bomb: A sbs reveals◊ that he had his Poison abilities since he was a small child, but fortunately Magellan just didn't have the disposition to effectively use it then. He also didn't have a very happy childhood because of it either.
- Top-Heavy Guy: He's a large imposing man but his legs are really tiny.
- Vitriolic Best Buds: Despite his arguments with Hannyabal, Magellan is noticeably upset when he finds him defeated by Luffy and states that he will not accept anyone else as his successor if he dies.
- Walking Wasteland: The Venom Demon technique melts everything around Magellan.
- Wardens Are Evil: Subverted. With his demonic appearance, Nazi-esque uniform, poison powers and ruthless disposition, many prisoners naturally fear him. But he really means well, and he makes a point that the prisoners have to be confined, lest they would terrorize the populace. He's also disgusted at the murderous antics of his former colleague Shiliew that he ordered him to be imprisoned.
- Winged Humanoid: Has two large wings on his back to go with his overall devil motif. Subverted as they're actually fake.
- Wings Do Nothing: And apparently they are just a part of his uniform.
- You Shall Not Pass!: He's determined to not let anyone out of Impel Down.
Chief Warden Hannyabal
Voiced by: Tetsuo Goto (JP), Brad Jackson (EN)
Age: 33 (Pre-Timeskip), 35 (Post-Timeskip)
Birthday: August 28th
Debut: Chapter 526 (Manga), Episode 422 (Anime)
Easily one of the greatest examples of The Starscream in manga and anime, Hannyabal is the overly ambitious vice-warden of Impel Down. He appears to be a tall man with a pot-belly and a massive chin, wearing a pharaoh's headress. His continuous Freudian Slips about his desire to become Warden and silly antics often gain the ire of Magellan, who either Dope Slaps him, or outright poisons him in anger. Despite his finding him irritating and too ambitious, Magellan considers Hannyabal as his only worthy successor to Chief Warden of Impel Down.
As of the timeskip, he achieves his dream as he is now the Warden of Impel Down with former Jail Head, Domino, as his number two.
- Authority Equals Asskicking: You think he got this job by kissing ass instead of kicking it? You think just cause he doesn't have a Devil Fruit he won't own you? Even if he gives you a chance to escape? Dead wrong.
- Badass Normal: Just because he doesn't have a Devil Fruit power, doesn't mean he can't kick ass. He'd just rather not.
- Crouching Moron, Hidden Badass: Hard to believe but true. Guess that's why he's the Vice-Chief. And during the timeskip he even gets promoted.
- Determinator: Arguably rivaling Luffy himself. Luffy beats him to a bloody pulp and is in every way the better fighter, but the man just will not go down. Blackbeard has to do a sneak attack to put an end to it.
- Distracted by the Sexy: Apparently something of a weakness of his. It's not just that he gets tricked by Mr. 2 disguised as Nami, it's that a flashback to his first day on the job has pretty much the exact same thing happening to him at the hands of a Vamp.
- Double Weapon: His Naginata Kessui (bloodsucker), which looks more like two katana merged to the hilts.
- Flaming Sword: Actually a naginata named Kessui (Blood Sucker), but close enough. Doesn't help much, but it was still pretty badass.
- Foreshadowing: Long before he serves any purpose but Butt-Monkey Plucky Comic Relief, some of the guards comments on his ability to walk through the superheated and supercooled floors of Impel Down with no ill effects. Wow.
- Formerly Fit: Not that he was the epitome of fitness before but, after the timeskip, he has gotten much fatter.
- Gonk: He has an actual "hannya" face and his body has a beer belly.
- Hero Antagonist: Arguably even moreso than Magellan. While he's an overly ambitious and duplicitous man, he lacks (at least overtly) the sadistic tendencies of his coworkers, and his real motivations are to protect the innocent people on the outside.
- Lantern Jaw of Justice: Exaggerated - that long chin of his is a hint of his hidden sense of justice.
- Large and in Charge: He's not as big as Magellan, but is bigger than an average human and he's the second highest authority in the prison. Post Time Skip, he's in charge of Impel Down!
- Laughably Evil: Nearly every time you see this guy, he's acting or saying something that's funny. This abruptly stopped when he faced off against Luffy.
- Large Ham: His loud personality and his starscream attitude has been consistent since he was very young.
- Let's Get Dangerous!: Throughout the Impel Down arc, he's basically doing nothing so Magellan would be removed as Warden. When it becomes clear that Luffy might actually succeed, he puts his foot down and holds the line.
- Mr. Vice Guy: Aside from his Starscream tendencies, he's a guy willing to do anything to protect the innocent from the worst criminals.
- Nice Hat: He wears a nemes. He also has an even nicer version of it special ordered and on standby for when he eventually becomes Warden. Unfortunately, he has to break it out prematurely when Mr. 2 steals his regular one.
- Number Two: To Magellan, he's the vice-warden. He gets promoted after the Time Skip.
- Obviously Evil: Subverted. He certainly looks evil, and is willing to sell out his superior for a promotion, but his motivation is to protect the innocent.
- Punny Name: Hannyabal is a combination of both Hannya, the death mask his face resembles, and Hannibal.
- Passing the Torch: Despite not liking how he wants to take his place, Magellan says that Hannyabal is the only one worthy to succeed him. After the timeskip, he really becomes the new chief warden.
- Rank Up: After the timeskip, he actually does become the new chief warden of Impel Down.
- The Starscream: Openly declares his ambition to become chief, often in earshot of Magellan. Despite this, Magellan considers him to be a worthy successor.
- Theme Music Power-Up: Parodied. When Hannyabal uses his flaming naginata technique, he has guards in the background playing drums and singing a song to cheer him on.
- Walking Shirtless Scene: Never wears a shirt. Never. This is lampshaded by the guards when Mr. 2 posed as him, that even in the extreme temperatures of Level 4 and 5, Hannyabal would never wear anything but his pants to show how badass he is. Unfortunately, given his potbelly, it also doubles as Fan Disservice. Averted post-timeskip, as he wears a complete uniform after he becomes chief warden.
- You Shall Not Pass!: When push comes to shove, he will not let criminals escape from Impel Down. You need to get past him to do it, and he will not move.
Head Jailer Domino
Voiced by: Naomi Shindo; (JP), Haley Esposito (EN)
Birthday: October 30th
Debut: Chapter 526 (Manga), Episode 422 (Anime)
One of Impel Down's high officers. She's serious and strict, to the point of scolding Magellan, the chief warden, for spending too much time in the washroom.
She greets Hancock during her visit in the prison (actually a way for Luffy to sneak in) until she's petrified by her devil fruit power. After going back to normal, she doesn't remember being turned into stone and accomanies Boa Hancock to Magellan's office.
During the timeskip she's promoted to head jailer, a post left vacant after Shilew's arrest.
- Absolute Cleavage: After the timeskip she doesn't wear a shirt under her jacket, leaving her ample cleavage exposed.
- Ambiguously Gay: Domino, like most people, was attracted to Boa Hancock and has never been seen attracted to a man, though it is still unknown whether or not she is a lesbian.
- Coat Cape: Wears one to indicate her promotion to head jailer.
- Commissar Cap: Has one to complete her Nazi-esque uniform.
- Cool Shades: Wears a pair of red-jaded glasses.
- Failed a Spot Check: If she had done a decent body search, she would've realized Luffy was hiding in Hancock's coat.
- Informed Ability: To be a head jailer, she has to be one of the prison staff's strongest members, but she's never seen in action.
- Meaningful Name: Domino comes from dominus, which refers to a person who has control over others, a fitting name for a high-ranked individual.
- Ms. Exposition: Domino explains to Hancock (and the audience) about the details of the prison when she comes visiting.
- No Badass to His Valet: It doesn't matter if Magellan is the prison's highest authority and can kill her at any time if he wants to, she still scolds him for wasting too much time in the washroom.
- Non-Action Guy: Domino is the only high-ranked officer who doesn't display any fighting skills. In fairness, she didn't have the time to show them since Boa Hancock petrify her before she could do anything.
- Passionate Sports Girl: In a drawing of her when she was a kid, she's playing football.
- Peek-a-Bangs: On top of wearing shades, her hair covers her right eye. She has had this haircut since she was a kid.
- Taken for Granite: Before she can spot Luffy, Boa Hancock turns her into stone with her Mero-Mero Fruit power. She gets back to normal but doesn't remember it.
- Whip It Good: She's carries a whip, though she's never seen using it.
Chief Guard Sadi
Voiced by: Yuka Koyama (JP), Marissa Lenti (EN)
Age: 21 (Pre-Timeskip), 23 (Post-Timeskip)
Birthday: March 5th
Debut: Chapter 531 (Manga), Episode 432 (Anime)
A chief-guard of Impel Down and the one in command of the Jailer Beasts. She's a sadistic person who enjoys hearing the screams of her enemies (and even of her allies) and, fittingly for her sadist personality, she has a pitchfork with a concealed whip as a weapon of choice. She has a crush on Magellan.
When Luffy infiltrates Impel Down, she sends Minotaurus to stop him and is later assigned to guard level 5's entrance. After Luffy, Ivankov, Jinbe and Crocodile escape from level 6 and defeat the Jailer Beasts, she angrily attacks them and fight Ivankov, who manages to tie her up using her own whip.
- Affectionate Nickname: Invoked, as she wants to be called Sadi-Chan. In the English dub she demands to be called 'Mistress Sadie', which is fitting given her dominatrix nature.
- Anti-Hero: A rare antagonistic example. While she's guarding a prison full of evil pirates, she enjoys whipping the prisoners a bit too much.
- Authority Equals Asskicking: She's in command of the Jailer Beasts and is said to be stronger than all four of them combined.
- Bad Boss: She's fond of whipping the Jailer Beasts as a punishmen for their failures.
- Badass Cape: She's said to be stronger than the four Jailer Beasts combined and wears a large white cape.
- Badass Normal: She doesn't have any Devil Fruit but is much stronger than the Jailer Beasts, each of whom has an awakened Zoan Devil Fruit power.
- Bare Your Midriff: Hardly any of the midriff is covered.
- Blinding Bangs: Her long blonde hair covers her eyes.
- Bondage Is Bad: Downplayed. Despite being a sadist who enjoys torturing others for her own amusement, she is an officer working for the World Government.
- Combat Sadomasochist: As if her appearance doesn't make it clear. She also loves hearing the screams of her enemies in combat.
- Designated Girl Fight: Invoked by her opponent who, upon realizing he's facing a woman, uses his powers to switch gender.
- Dominatrix: She gets so sexually excited from the screams of others that she becomes a parody of it.
- The Dreaded: Not much by the prisoners but by the Jailer Beasts, her subordinates, each of whom is deathly afraid of making her angry. Given her habit of whipping them, it's pretty reasonable.
- Femme Fatalons: Her long nails aptly hint at her twisted sexual sadist self.
- Fragile Speedster: She manages to dodge most of Ivankov's attacks while destroying the walls, but once she loses her weapon, she goes down quickly.
- Horny Devil: Her stripperific outfit (which makes her look like a succubus), combined with her sadist and dominatrix-like personality give off this vibe.
- Lady in Red: Sadi is a morally ambiguous woman dressed on a red BDSM-themed suit. Downplayed in the anime, as it was changed to hot pink.
- Mama Bear: Despite being abusive towards them, she gets really angry if someone hurts the Jailer Beasts.
- Meaningful Name: Her name is, very fittingly, short for "sadist".
- Mix-and-Match Weapon: Her weapon is a pitchfork which conceals a whip, to combine her succubus-appearance and her dominatrix personality.
- Ms. Fanservice: She's a dominatrix who wears a very skimpy devil outfit and gets sexually excited when she makes the others scream by whipping them.
- Prongs of Poseidon: Like most of the guards, her Weapon of Choice is a pitchfork (which conceals a whip) to go with her demonic appearance.
- Smug Super: She refuse the marines' help, claiming Impel Down's staff is enough to catch Luffy. She's right, as Magellan captures and sends him to Level 5, but then he escapes along with some really strong prisoners...
- Stripperiffic: Her outfit leaves most of her skin exposed.
- They Call Me Mister Tibbs: She demands to be addressed as "Mistress" Sadi. If you don't, you shall be introduced to her whip.
- Token Evil Teammate: While most of the staff seem to genuinely believe they're in the right, Sadi-chan just seems to be in it to torture people.
- Underboobs: Her outfit doesn't cover the lower half of her breasts.
- Unwilling Suspension: Ironically enough for a dominatrix, Ivankov defeats her and ties her to the ceiling with her own whip until Magellan rescues her.
- Verbal Tic: She often stops mid-speech to say "... mmmmm..." before continuing it.
- Whip It Good: To go with her Horny Devil/dominatrix theme, her main weapon is a pitchfork which can turn into a lash, and is strong enough to smash a large stone bridge.
Chief Guard Saldeath
Voiced by: Kazuya Nakai (JP), Orion Pitts (EN)
Age: 16 (Pre-Timeskip), 18 (Post-Timeskip)
Birthday: June 8th
Debut: Chapter 530 (Manga), Episode 431 (Anime)
One of the chief guards of Impel Down and the one in command of the Bluegori of level 1. He's a calm and level headed person and is probably the least brutal of all the high ranked officers. He doesn't fight on his own but controls the Bluegori using his flute.
During Luffy's infiltration, he tries to stop him in level 3 but, since the Bluegori are easily defeated by him, he's sent to quell the riot in level 2. After Luffy escapes again, Hannyabal sends him to level 4 but he and his Bluegori are defeated by Ivankov with a single blow.
After the timeskip, he has grown proportionately taller.
- Affably Evil: While he's more of a Hero Antagonist, he's the least brutal of all the staff, to the point that he says Luffy and his allies are lucky to be captured by him.
- I Got Bigger: After the timeskip, he goes from tiny to willowy.
- Improbable Age: He's a high-ranking warden in the worlds most important prison at only 16 (Now 18).
- Instrument of Murder: His pitchfork is actually a flute, used to control the Blugori.
- Large and in Charge: Inverted. Despite being one of the high ranked officers, he's the shortest person in all the prison. Played straight after his growth spurt.
- Nice Hat: Wears a white horned hat with a black skull on it.
- Non-Action Guy: He doesn't fight himself, instead controls the Blugori with his flute to attack the enemy.
- Punny Name: In Japanese, his name sounds like Saru Desu, which means "I am a monkey". He doesn't like when someone mishears his name, like Luffy.
- Winged Humanoid: Subverted. He has a pair of black bat-like wings, but they're probably part of his uniform and cannot be used for flight.
Other Guards and Beasts
The Jailer Beasts
Four (five after the timeskip) strong guards under Sadi's authority. They have all eaten an unknown Zoan Devil Fruit and have awakened their power, giving them a strong healing factor that allows them to recover quickly.
Despite their dumb-looking appearance, they're all brutal guards who would gladly smash any rioting prisoners with their weapon, though they also have a big fear of Sadi.
Due to their great stamina and healing factor, they face Luffy and his allies multiple times (especially Minotaurus), but they always get defeated and, once Jinbe, Crocodile and Ivankov joins Luffy in the escape, they basically stop being a threat.
After the time-skip, a fifth jailer beast, Minochihuahua, joins them.
Tropes pertaining to all of them:
- Animorphism: They're basically confirmed to have eaten an awakened Zoan fruit each. It borders with Informed Ability because they're always seen in their hybrid form, and we learn that they've eaten a devil fruit because it's explained by Crocodile.
- Bare Your Midriff: A variety. Minotaurus's, Minozebra's and Minokoala's fur only covers part of their abdomens, leaving the middle completely uncovered.
- Beast Man: They are Zoan users and so farthey're only seen in their hybrid form, which makes them look more beast than human.
- Beware the Silly Ones: Don't be fooled by their goofy appearance, they're actual brutal guards and among the strongest in the prison.
- Black Bead Eyes: With the exception of Minozebra, they have little black dots as eyes.
- Blood Knight: Possibly because of their Zoan devil fruits, they are all ruthless and like brutalizing their enemies.
- The Dreaded: Because of their blood lust, they're the most feared individuals in the prison, right behind Magellan.
- Gonk: They all have silly body proportions, Black Bead Eyes (save for Minozebra) and snot that drips from their noses. It's not a good reason to underestimate them.
- Half-Dressed Cartoon Animal: Aside from Minorinocheros, who wears overalls, and, later, Minochihuahua, they only wear a pair of shorts.
- Implacable Man: Thanks to their "Awakened" devil fruit powers, they can heal from heavy injuries in a short period of time and it doesn't matter how much Luffy and his allies beat them, after a short while they are back to fight them again.
- Lightning Bruiser: They're all incredibly fast and strong and, if that isn't enough, they recover quickly and after a short while they can fight again.
- Psychopathic Manchild: Their intelligence has apparently been affected by their powers and regressed to a point between animalistic and merely infantile, although they're smart enough to understand clearly Sadi's orders. They're still one of the biggest threats in the entire prison, and even enjoy their job in their own way.
- Submissive Badass: They're incredibly strong and the second most feared individuals by the prisoners, yet they all fear and obey Sadi-chan.
- Theme Naming: Their names are their animal devil fruit with the prefix "Mino": Minotaurus, Minokoala, Minorhinoceros, Minozebra, and Minochihuahua.
- Top-Heavy Guy: Save for Minochihuahua, who's fairly proportioned, the others have a large upper body whith short and tiny legs.
- Wardens Are Evil: They are all violent and often torture the prisoners. Of course, said prisoners are mostly people who deserve it.
Voiced by: Kappei Yamaguchi (JP), Josh Martin (EN)
Birthday: March 4th
Debut: Chapter 525 (Manga), Episode 422 (Anime)
- A Load of Bull: He is literally a bull-man, although he looks more like a spotted cow.
- Bullying a Dragon: He beats a chained Jinbe without fear. When the latter is freed, he repays the favour.
- Carry a Big Stick: His weapon is a large club with sharp spikes.
Voiced by: Hiromu Miyazaki (JP)
Birthday: March 1st
Debut: Chapter 532 (Manga), Episode 433 (Anime)
- Carry a Big Stick: He punishes the prisoners with two spiked maces.
- Dual Wielding: He fights with two maces.
- Rhino Rampage: As his name attests, his devil fruit gives him the ability to become an half-rhino man.
Voiced by: Takahiro Fujimoto (JP)
Birthday: March 7th
Debut: Chapter 533 (Manga), Episode 434 (Anime)
- Carrya Big Stick: His weapon is a rod with a mace head at the end.
- You Gotta Have Blue Hair: His mane is pink.
- Shrinking Violet: He's quite shy, as he's seen hiding behind Minokoala
Voiced by: Keiji Hirai (JP)
Birthday: March 5th
Debut: Chapter 531 (Manga), Episode 432 (Anime)
- Amazing Technicolor Wildlife: His fur is yellow and his nose is red.
- Big Eater: He's almost always seen with some eucaliptus leaves in his mouth.
- Power Fist: His weapon is a pair of spiked brass knuckles.
- Stock Animal Diet: Despite not being an actual koala and simply having the power to turn into one, he likes eucaliptus leaves and carries a bag of them around his waist.
Debut: Chapter 662 (Manga)
Debut: Chapter 526 (Manga), Episode 423 (Anime)
The Blue Gorillas, nicknamed Blugori, are animals so strong they hunt Sea Kings for food. They mainly reside on level 1, where they chase the prisoners, but can move to the other levels as well, though they aren't much of a threat to higher-ranked prisoners. They are under Saldeath's command, who controls them using a flute.
- Amazing Technicolor Wildlife: Guess what their fur color is?
- An Axe to Grind: Their weapon of choice is a giant double-headed axe.
- Elite Mook: Downplayed. They are much stronger than the common guards, and are tough enough to take care of the Level 1 prisoners, but when put against Luffy or some stronger prisoner, they're ineffective.
- The Faceless: Their cloaks cover the upper sides of their bodies. How they can see while wearing them is a mistery.
- Informed Species: Their faces are hidden by their cloaks and the rest of their bodies don't exactly resemble a gorilla.
- Killer Gorilla: They're gorillas so strong they hunt Sea Kings and are vicious prison guards.
Level 2 Beasts
Level 2, known as "Wild Beast Hell", is filled with dangerous monsters that will chase and eat every prisoner they encounter. The monsters in question are:
- The Sphinx: A large lion-like creature with a human face and feathers. It's the strongest monster of the level, and is tough enough to destroy the floor under him.
- The Basilisk: A big chicken with a reptilian face and a constantly hungry expression.
- The Manticores: Lions with human faces. Ferocious creatures who devour even the prey's bones. They can even speak human language, but not understand it. They therefore simply repeat random words they hear from the prisoners.
- The Puzzle Scorpions: Giant poisonous scorpions which can combine themselves to become a giant centipede.
- Attack of the 50-Foot Whatever: The Basilisk and the Sphinx are quite huge.
- Basilisk and Cockatrice: The second strongest monster is a large basilisk (that, ironically, looks more like a cockatrice). However, he doesn't have the petrifying gaze.
- Beware the Silly Ones: No one of them looks remotely scary (save the Basilisk, and even then he looks more crazy than intimidating), yet they are all strong monsters.
- Big Creepy-Crawlies: The puzzle scorpions. While they don't look scary, they're actually quite big and dangerous, and, if combined, they become an even larger centipede.
- Conservation of Ninjutsu: There are many manticores and puzzle scorpions, but are all small fries for Luffy. The basilisk and the sphinx, on the other hand, are quite tougher opponents, and there is only one of each of them.
- Gonk: Each manticore has a different human face, but every single one is... goofy.
- King Mook: The Sphinx is the leader of level 2 monsters and is the strongest among them.
- Mix-and-Match Critters: The manticores are basically lions with a human face, the Sphinx is similar to a giant winged manticore and the Basilisk can be described as a chicken with a reptile face.
- Mooks: At least for Luffy, the manticores are easy to deal with. Not so much for Buggy and the level 1 and 2 prisoners.
- Running Gag: Involving the Manticores's habit of yelling names of underwears and the Sphinx's habit of shouting casual names of
noodlespasta since they can learn the words they hear from the prisoners but don't understand their meanings.
- Scary Scorpions: The puzzle scorpions. Despite their appearance, they're actu<lly deadly poisonous and can combine themselves together to become a giant centipede.
- Super-Persistent Predator: The basilisk keeps chasing Luffy and Buggy for a long while until he's stopped by Luffy's gear third punch.
The Wolf Unit
Debut: Chapter 536 (Manga), Episode 425 (Anime)
A pack of vicious wolves that reside in level 5. It used to be in level 2 but, since the wolves are so voracious that they used to prey on the other beasts too, it has been moved.
The followers of Emporio Ivankov, they were once prisoners of the Great Gaol of Impel Down that were "spirited away", while actually they were just freed by Ivankov or had found a way to reach him. They resides in the hidden level 5.5, built by a prisoner with tunneling Devil Fruit powers where they constantly party and keep an eye on the situation in the prison. After Luffy's outburst, they evade with their leader. After the Marineford saga, they finally reach Kamabakka Kingdom, where they joined the local Okama subjects.
For Emporio Ivankov himself and Inazuma see their entries on the Revolutionary Army page. For Caroline see his entry on the Anime-Only page.
- Attractive Bent-Gender: Apparently, when a male Newkama is turned in a female he instantly becomes a hottie, it's more glaring when nearly all the males are quite gonky.
- Badass Crew: They're all martial arts masters in Okama Kenpo and Newkama Kenpo, you better believe they're badass.
- Beware the Nice Ones: Think a bunch of gender-switching, easy-going, partying guys is harmless? Think again. The same goes for the inhabitants of Momoiro.
- Chef of Iron: All the high-level masters of Okama and Newkama Kenpo can use the "Attack Cuisine", which can strengthen the human body from inside. Sanji is the only person who managed to master it without becoming an Okama.
- Distaff Counterpart: The Newkama are a sort of counterpart to the Kuja Pirates.
- Fan Disservice: While at least the Newkama in Impel Down can be quite pleasant, the crossdressers of Kamabakka are straight awful.
- Gender Bender: Basically any single member may have or not change sex at least once, courtesy of Ivankov's Horm-Horm powers. The Newkama philosophy is that a person should be whatever makes them happiest, whether it's a man, woman, or okama.
- Gonk: Many of the male Newkama are plain ugly. Ditto for "Caroline" and all the other Okama on Kamabakka Kingdom.
- Humiliation Conga: One of the members: he was once a prince whose father was turned into a Okama after visiting Ivankov's Kingdom, then he lost everything, became a pirate and was imprisoned. To cup it all, when he tried to take revenge on Iva he had his own bullet reflected back at him and then was turned into a woman.
- I Choose to Stay: A large portion of the Newkama decided to stay in Level 5.5, rather than breaking out. Bon-chan ends up becoming their new "queen".
- Real Men Wear Pink: And dresses, skirts and bloomers too. Momoiro literally means "Pink".
- Refuge in Audacity: Pretty much everything they do are made crazy and over-the-top as much as possible.
- Seashell Bra: One of the male Newkama sports one.
- Screams Like a Little Girl: Justified as the poor sop was just turned into a naked chick in front of a whole room of people. Also the Okama tends to have "girlish-sounding" voices.
- Stocking Filler: All the Newkama wear these.
- Training from Hell: The "Bride Training" required for the Attack Cuisine. Sanji managed to skip it in exchange for another, harder training.
- Wholesome Crossdresser: Averted by the Impel Down denizens. The people of Kamabakka may look more like Creepy Crossdresser type, but they're actually of a really good nature.
- Zerg Rush: While escaping from Impel Down.