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Turnabout Target (Gyakuten no Hyoteki)
Mikiko Hayami (Nicole Swift)
A self-proclaimed up-and-coming journalist. She witnessed the assassination attempt at Gourd Lake and recorded the president's speech. She soon becomes one of the suspects. She is innocent, even though she did help set up the fake assassination plan.
- Back for the Finale: To search for the real Moozilla (Borumosu in Japanese).
- Bear Trap: Carries one on her parka. It snaps loudly, causing her to jump, during her "shock" animation.
- Going for the Big Scoop: In Case 1.
- Karma Houdini: She never gets charged for her part in the fake assassination plan, telling Edgeworth she was let go immediately by police upon meeting her again in Case 5. This was due to the fact that the president was trying to cover up the fake assassination plan and have Knightley tried for it instead.
- Meaningful Name / Punny Name: "Hayamimi" means "keen on hearing". It is a reference to how she recorded the gunshots during the assassination. Her first name in the fan translation is French for "victory of the people," a reference to how she is ultimately acquitted, and her last name most likely comes from "swift of hearing."
- Motor Mouth: When she hastily tries to get her news out of people.
- Reference Overdosed: The writings on her parka contain numerous references, both In-Universe - KB Security, iFly Airlines, Global Studios, Gatewater Hotel, Will Powers's shirt - as well as Shout Outs to the art director Tatsuro Iwamoto and a furniture company which apparently decorated Yamazaki's family home.
- The Scapegoat: She was asked to be part of the fake assassination plan on the president of Zheng Fa, but unfortunately another murder took place and she was framed as the murderer for that one.
- Suspiciously Similar Substitute: She very much resembles Lotta Hart in both appearance and profession, and even has similarly accented speech. She's actually an "apprentice" of her, even though she is a writer and Lotta a photographer.
- Too Funny to Be Evil: A minor case, she isn't actually evil but very few players guessed she'd be a willing conspirator in the fake assassination plan. Admittedly she never realized how far it would end up going, or that they'd end up pinning the blame on her.
Manosuke Naitō (Horace Knightley)
The bodyguard of a private security company hired by Zheng Fa's president, Teikun Ō. Wears a neck brace and is fond of his revolver and playing chess. He got involved in the investigation and it turned out that he killed Ethan Rooke, the head bodyguard out of jealousy. Unfortunately his case would never go to trial as two days later, after being admitted to the Detention Center, he was killed by a stab wound to his neck and his body left in the prison area workroom. Also, he and Simon were childhood friends. They grew up together after their fathers abandoned them. Horace lost most of his memory when he nearly froze to death. His friend was the one who suggested making a fake assassination attempt. Horace was imprisoned for his crime. Simon then made sure he was killed by the prison director.
- Animal Motif: Indirectly- his design is based on a chess knight, which usually looks like a horse.
- Asshole Victim: Culprit of the first case, victim of the second case.
- Really, as Asshole Victims go, he's probably one of the more rotten in this series (and there are plenty to pick from) since you actually talk to him before he dies off. He speaks so abrasively about Rooke (the man lying dead at his feet) that you want to punch him through the screen.
- Berserk Button: Do NOT claim Rooke was a better bodyguard in front of him. De Killer presses this a lot perhaps as a way of hinting he knows about the murder.
- Butt Monkey: By De Killer especially. Which may qualify as Fridge Brilliance if you know who his client is.
- Catch Phrase: Tends to use おっと quite a bit, which translates as something along the lines of "Oops, sorry" or "Whoa."
- Chekhov's Gun: The silver ring he's wearing. It is the Holic family ring. He inherited it from his father... which is later used to prove Simon isn't Holic's son like he claims.
- Chekhov's Gunman: Literally! His role in the story is a lot more important than one would expect, considering he was the Big Bad's childhood friend.
- Chess Motifs: He represents the knight, right down to his name. He's also a little more direct, peppering in frequent chess metaphors (though probably on purpose since he knows Edgeworth can talk his language).
- Deadpan Snarker: Possibly Deconstructed. His bitterly sarcastic mocking of Rooke after his death is pretty much treated as his Moral Event Horizon. His constant snarks to Edgeworth only make him seem like even more of an utter Jerkass. Edgeworth even calls him a "truly despicable man".
- Disappeared Dad: He doesn't remember him, but he's dead. And his best friend blames him for it, even though it was his father who murdered him.
- Fall Guy: Later becomes a Deceased Fall-Guy Gambit for the president, though he didn't ask for it.
- Green-Eyed Monster: He killed his partner Rooke out of jealousy, hoping that after his death, he would finally be promoted to head bodyguard.
- Gun Twirling: Not quite at Revolver Ocelot levels, but he's a fan of doing this.
- Heterosexual Life-Partners: With Simon. Sadly for him, the feeling wasn't mutual.
- I Just Shot Marvin in the Face: His recoil animation has his gun misfiring while he's twirling it, the shot coming within millimeters of his face.
- Morality Pet: Simon. To the point where he almost acts like a different person around him.
- Kick the Morality Pet: Inverted. Simon purposely gets him injured, then sets him up to commit murder and gets him killed.
- Neck Snap: Non-fatal version by Shelly de Killer. It even causes the change in the security plans.
- Pet the Dog: It's heavily implied, if not outright stated, that he cares about and has a soft spot for Simon Keyes.
- Posthumous Character: You learn a lot more about him after his death.
- Punny Name: Fitting with his Chess Motif of the knight, the fan translation gives him the first name Horace, which sounds like "horse". "Knightley" is a more obvious pun on the word "knight".
- The Killer Becomes the Killed: He is the killer of the first case, but becomes the victim of the second case.
- The Scapegoat: Case 2 reveals that, after his arrest, he was to be tried as the attempted assassin rather than as a common murderer. Obviously done to cover up the fact that the assassination was fake.
- Shown Their Work: He loves Chess metaphors. He even makes a few obscure ones referencing Tournament Play rules. All of them are completely accurate.
- Slasher Smile: Does one after twirling his gun and pointing it and someone.
- Small Name, Big Ego: Interestingly, he feels this way about himself as well as coming off as such. He wanted to be someone important to the President and saw Rooke as someone undeserving of his rank. Everyone around him just sees him as an unrepentant scumbag who talks bigger than he should.
- Took a Level in Jerkass: He takes this Up to Eleven as the case progresses.
- Tsundere: Though he is most certainly tsuntsun by default, Simon is quite possibly the only person he'd show his deredere side to.
- Used to Be a Sweet Kid: Is shown smiling in a photo, and tearfully apologized to Simon when forced to betray him.
- Villainous Breakdown: Knightley bites down on his lip with sunken-looking eyes as he screams bloody murder and twirls his gun even faster than usual until he loses control and starts tossing it and various other objects he has in his pockets up in the air (which include a Thinker statue, a Blue Badger doll, a Samurai Dogs box, and a Mr. iFly statuette). He fails to catch them and they all fall on his head one by one, knocking him into his neckbrace until his revolver hits his head, causing him to fall. Ironically, this makes him the only person in the series to be struck in the head with the Thinker and live, though he was murdered within two days.
- Villainous Cheekbones: As part of his horse motif.
The Imprisoned Turnabout (Gokuchu no Gyakuten)
Sōta Sarushiro (Simon Keyes)
A monkey trainer in the Berry Big Circus and the suspect of the prison case. When he was a child, his best friend Horace Knightley; tied him up because he was threatened by his father Isaac Dove. They both nearly died and became orphans. Simon's memories were muddled, but he remembered his savior Sirhan Dogen;. He saved him and ever since then he became his father figure. He held a grudge against the conspirators who betrayed Dogen as well as against Horace, whom he blamed for tying him up, plus he believed that Issac Dover was his father, while in actuality it was Dane Gustavia, the murderer.
- Animal Motif: Based around the monkey theme.
- Anti-Villain: His misanthropy is understandable when you realize the only people he really got to know all were very bitter, horrible people. He also grew up in an orphanage of fear after being abandoned by his father.
- Apparently Powerless Puppetmaster: If anyone is the physical embodiment of this trope, it's him.
- Asian Airhead: Though he's really just Obfuscating Stupidity.
- Assassin Outclassin': After his breakdown, Shelly de Killer tries to kill him because he felt betrayed. However, Sirhan saved him.
- Big Bad: Catalyzes the events of four out of five of the cases in the game.
- Bitch in Sheep's Clothing/Faux Affably Evil: When he introduces himself, he's very cheerful and charismatic.
- Break the Cutie: Lost his only family when very young, as well as his only friend during the game. Also had his faith in both the law and humanity shattered, which twisted him badly.
- Broken Bird: A rare male example, but being abandoned by your father and growing up in an Orphanage of Fear can really break someone.
- Catch Phrase: "Nowaynowaynoway!"
- Chekhov's Gunman: Met as a falsely indicted suspect, and turns out to be the Big Bad.
- The Chessmaster/Manipulative Bastard: He even refers to himself as an "animal tamer who tames humans."
- Complexity Addiction: Lang thinks this is what does him in in the end, even giving an appropriate Lang Zi quote.
- Cute and Psycho: Under the fragile, cowardly exterior, is an extremely cruel and bitter young man.
- Dangerously Genre Savvy: How does he manage to get Blaise Debeste convicted? By letting the innocent Kay be falsely accused, knowing someone will have to defend her, and in doing so expose the real killer.
- Dark and Troubled Past: Lost his father at a young age, nearly froze to death in a car after being betrayed by his best friend, thought his best friend helped kill his father and nursed a massive grudge, accidentally witnessed a murder that was hushed by corrupt law officials and ends up being interrogated and chased for twelve years as a result.
- Disappeared Dad: Supposedly, he died years ago. Actually, his real father is very much alive and a murderer who went missing to cover up his crime.
- Dude Looks Like a Lady: Long red hair and slender build.
- Even the Dog Is Ashamed: Taken to its logical conclusion in his Villainous Breakdown.
- Evil Cannot Comprehend Good: He can't comprehend why Kay and Edgeworth wanted to help him before without some ulterior motive. He has no concept of trust either.
- Evil Laugh: Just like his father.
- Laughing Mad: After he learns that he ended up getting Knightley killed for no reason. His tendency to burst into laughter starts at this point.
- Evil Is Hammy: Far more prone to burst out into maniacal laughter than any other final boss in the series, with exaggerated sprite animations to go along with it.
- Evil Redhead: He used to have black hair.
- Eyes Always Shut: Most of the time. He only opens them when Money the Monkey is controlling him through his hair, or in his "hear no evil" pose. Until after The Reveal, where they're open permanently. They aren't creepy, though they do make him look just as clever as Edgeworth - which he is.
- False Friend: To Kay and especially Regina and Knightley.
- Fluffy Tamer: As an apprentice animal tamer at the Berry Big Circus.
- Blaise Debeste wore the mask of Zuruwan during the auction. Zuruwan is the nemesis of Global Hero Onyankopon. Simon's wearing a blue shirt with Onyankopon's insignia. This foreshadows their enmity, although Debeste isn't his top target.
- At the end of Case 2, Regina mentions that he isn't as dumb as he looks. That turns out to be a massive understatement.
- Fragile Flower: He's terrified of everyone he meets, going so far as to faint when Edgeworth glares at him. Of course, it's all an act to make himself seem harmless. He's actually a misanthropic Magnificent Bastard.
- Friend to All Living Things: He's an animal tamer for a reason. He even got Money the Monkey to be friends with him! But when his true nature is made clear they turn on him. Also, despite being hostile to nearly everyone else in the game, Anubis is said to be fond of him.
- Gender Flip: See Identical Stranger - the similarities in design were likely intentional.
- Heterosexual Life-Partners: Seemed like this with Knightley. Unbeknownst to Knightley, Simon hated him ever since the incident with their fathers.
- He Who Fights Monsters: In trying to take down the conspirators, he winds up using the same methods they themselves used—to the point that he and Blaise wind up trying to kidnap the exact same kid in order to manipulate the same trial, albeit with a completely different verdict in mind. It especially bothers him to learn Gustavia had tried to throw off the estimated death time in the same method he himself did with Huang's body double. When cornered, he reacts the exact same way his father did: confessing to everything before pointing out a legal loophole that prevents you from arresting him.
- Identical Stranger: When his character design was first released, he was criticized for looking like a male Dahlia Hawthorne. He certainly acts like her too.
- I Did What I Had to Do: Claims he had no choice but to become a Vigilante Man in order to protect himself from Fake!Huang, Roland, and Blaise. Given their massive example of Screw the Rules, I Have Connections!, he wasn't exactly wrong (except for his Collateral Damage in the process).
- I Have No Son: Inverted. In his mind, he has practically disowned his own father (and it goes both ways so no love lost).
- He asks Edgeworth whether or not Knightley really trusted him, thinking that if Knightley had confided with him, he could have convinced his best friend that there was no need to hate someone so much. Fast forward to Case 5...
- He is not as different from his father as he thinks he is.
- Japanese Pronouns: Boku, as is fitting for his personality. Significantly, he switches to the much rougher ore when his true colors are revealed.
- Kick the Dog: Framing Kay and John for murder.
- Laser-Guided Amnesia: He forgot who his father was, and ended up assuming his father was the victim of the IS-7 Incident, and his friend's father was the murderer.
- Leitmotif: Restless People when you first meet him. Strange People when you talk to him. And when he reveals himself, The Man Who Masterminds The Game.
- Like Father, Like Son: Though he would claim otherwise, Simon turns out to be Not So Different from his true father, Dane Gustavia. He even freezes the body of his victim in order to throw off the time of death, not knowing that his father did the same thing.
- Madden Into Misanthropy: His experiences have given him a chronic distrust of other people, and an obsession with being strong.
- Meaningful Name/Punny Name: "Saru" means monkey. His first name can also be read as "Kusata", a pun on "Kusatta" (rotten). Combined with his real family name (Kazami), his name means "Rotten Flavour". His name in the Fan Translation sounds like "Shy monkeys" when said quickly. Additionally, "Simon" could be a reference to "Simon Says", because of his being able to manipulate people into doing whatever he wants.
- Monkey Morality Pose: Often covers his eyes, ears or mouth in this manner when frightened.
- Morality Pet: Implied to have been this to Knightley. A rare example in which the Morality Pet is crueler and more hate-filled than the one he humanizes.
- Monster Clown: Dressed like this during the final confrontation, complete with a Psychotic Smirk and deranged facial expressions.
- No Good Deed Goes Unpunished: His role in Dogen's escape resulted in him having to spend the rest of his entire childhood hiding in fear of Dogen's ex-employers. This, understandably, changed his whole worldview from The Golden Rule to Do Unto Others Before They Do Unto Us.
- Obfuscating Stupidity: Involved in all the events of the game, but manages to conceal it from everyone right until the very end.
- The Paranoiac: Believes everyone (excluding Dogen) is out to get him and/or has ulterior motives. Given how he nearly froze to death due to his best friend's betrayal when they were kindergartners, was constantly interrogated by an abusive orphanage-owner, and then had to spend the bulk of his youth hiding from a trio of corrupt officials (one of them being the aforementioned owner, no less) in charge of an entire international conspiracy because He Knows Too Much, you can't exactly blame him.
- Pay Evil unto Evil: If it hadn't been for all the collateral damage like Jill's death or Kay's and John's abduction, it would have been hard to even think of him as an enemy, considering who his intended victims were.
- People Puppets: When Money the Monkey appears, he immediately starts to control Simon's arms using his hair.
- Real Men Hate Sugar: Claims he dislikes sweet things when Raymond offers him candy. Suggested to be a result of his abandonment issues. That or they bring back memories of his days as a taste tester for his dad, which are probably not something he wants to remember either.
- Real Men Wear Pink: He is usually seen with a pink hoodie and shoes on. At the circus, he wears a pink and purple clown costume and has pink makeup on.
- Right-Hand Cat: His Slouch of Villainy pose involves various animals climbing on top of each other to make a tower for him to lean on. At the top is a big, fluffy, white cat fit for a Bond villain.
- The Bad Guy Wins: Sure he was caught, but his main objective was revenge and he got it, big time. However, at least he made the world a better place in the process, given who his targets were.
- The Runaway: A combination of Orphan and Circus type. He actually did it because he was on the run from Blaise's henchmen looking to Leave No Witnesses.
- Sadist: Some unsettling dialogue shows that he genuinely enjoys causing and watching people's suffering, whether deserved or undeserved. He expresses glee over how he set up Knightley's death, even after he knew that his grudge against Knightley was misplaced.
- Shaking His Hair Loose: When he drops his shy and lovable act, he has a couple of birds undo his pigtail-things, turning him into the bastard love child of Ronald McDonald and Nathan Explosion. He even has a couple of squirrels comb his hair down straight.
- The Sociopath: While he's never explicitly called a sociopath, it's made repeatedly clear that he trusts no-one but himself, and can't comprehend why anyone would want to help another. Granted, this was probably brought on by his past, and he's still capable of a certain degree of empathy (mostly toward Dogen).
- Spanner in the Works: To the group who assassinated the President. They actually knew about him, and tried to silence him for years, he was just too smart for them.
- Stepford Smiler: Type A. He maintains a friendly smile in almost all his appearances, despite having just lost his best friend. Considering his misanthropic, vengeful personality, he's also a type C.
- Sympathy for the Devil: Though whether or not he's truly a devil is up to you.
- Sympathetic Murderer: His victim tried to have many people killed, including Simon's father figure, Dogen the assassin. He also has his tragic backstory going for him.
- The Plan: Oh. Sweet. Lord! If it's on the Gambit Index, you can bet he probably used it.
- Batman Gambit: His favorite method, this is how he coerces Roland into killing Knightley and Blaise into killing Jill. He also designed the fake assassination plan to allow the jealous Knightley a perfect opportunity to kill his co-worker. He takes advantage of the trope to try and pull a Karma Houdini, because technically, he never told anybody to commit murder. He just revealed the truth and watched the results unfold.
- He also kidnapped Kay Faraday and planted a letter on her suggesting that she was working with Jill Crane before leaving her at Blaise Debeste's doorstep. Either Blaise kills her or (as what happened) he uses her as a scapegoat for Crane's death. Either way, Blaise unknowingly brings the wrath of Miles Edgeworth upon himself.
- Crazy-Prepared: He knew the evidence at Patricia's trial would be tampered with, so he prepared a hostage to force a Guilty verdict, out-gambitting Blaise in the process, who wanted to kidnap the same hostage in order to force a Not Guilty verdict. He also prepared several methods of escape in case he got caught by the police.
- Trouble Magnet Gambit: The chisel he hid in Knightley's chess set.
- Unintentional Backup Plan: He never expected to be arrested as a potential suspect for Knightley's murder, which was a very big problem since he technically did cause it. But who should happen to be there but Miles Edgeworth... acting as an assistant to a Defense Attorney. Not only did this get him out of prison, it allowed him to work Edgeworth into the later part of his plan.
- Xanatos Gambit: How he dealt with Blaise. He sent letters to both him and Jill exposing the other's secrets and telling them to meet at the same place. There were two possible outcomes here: either Jill kills Blaise, in which case revenge achieved, or Blaise kills Jill (the one that ended up happening) and goes down for murder, in which case revenge achieved.
- Xanatos Speed Chess: He's also very capable of working things into his plans on the fly. The fake President just happened to show up during one of his plans, so he took the opportunity to kill him personally. And finally, Edgeworth showing up was a complete fluke, but with an on-the-spot Wounded Gazelle Gambit he was able to turn him into the best Unwitting Pawn he could ever ask for.
- Batman Gambit: His favorite method, this is how he coerces Roland into killing Knightley and Blaise into killing Jill. He also designed the fake assassination plan to allow the jealous Knightley a perfect opportunity to kill his co-worker. He takes advantage of the trope to try and pull a Karma Houdini, because technically, he never told anybody to commit murder. He just revealed the truth and watched the results unfold.
- Tragic Villain: One of the most sympathetic Big Bads in the series. His mother died when he was young, and his father abandoned him and left him in an orphanage of fear, his best friend betrayed him, and his only father figure was an assassin. Even Edgeworth felt sorry for him.
- Troll: During the final confrontation, he steals Edgeworth's voice to object to Edgeworth's statements, constantly provokes Kay and Edgeworth to get a rise out of them, fakes a Villainous Breakdown, tells Courtney that she almost got her child killed and Lang that his father was incompetent for no reason other than to cause them psychological pain. Edgeworth mentions that striking people's psychological weak point is his strategy to get an emotional response and divert them from the subject (they were trying to prove his guilt at the time).
- Used to Be a Sweet Kid: He's shown smiling in the flashback picture with Knightley.
- Voice Changeling: Mocked Edgeworth by imitating his voice.
- Villainous Breakdown: His is one of the most awesome and hilarious Big Bad breakdowns in Ace Attorney, considering that all of his animal friends beat the crap out of him when he is exposed.
- Earlier, he also has a fake one, complete with Skyward Scream and his dad's theme music, then both abruptly cut out and he says "Just kidding!"
- Walking Spoiler: His true colors are not revealed until the very end.
- Who's Laughing Now?: Towards the conspirators who ruined his life.
- Woobie, Destroyer of Worlds: After all the crap he went through, you almost can't blame him for becoming a Monster Clown.
- You Killed My Father: His hatred of Knightley resulted from his mixed-up memories: he believed that his father was Isaac Dover, and Knightley's father was Dover's murderer, when it was actually the other way around. He's quite shocked to find out that he had hated and orchestrated the death of his only friend for no reason... but he's still too much of a misanthropic jerk to feel any remorse for it. To be fair, Knightley did tie him up and lock him in a car, an event that would ultimately lead to all the bad things that happened in Simon's life.
Shūji Orinaka (Jay Elbird)
One of the prisoners in the jail. He used to be a boxer and he continues practicing in prison. His prison number is D-259. He has a polar bear called Rocky, who's always hanging around with him (literally). He tried to escape the prison. His bear knocked a guard unconscious and then Elbird stole his cell keys and disguised himself as a guard. His plan was foiled when Rocky recognized him in the uniform.
- Gonk: Just as how you'd expect a boxer from a prison to look like.
- Meaningful Name / Punny Name: His full name is a pun on "ori no naka shūjin", which means "prisoner in a cage". His name in the Fan Translation sounds like "Jailbird", a slang term for a prisoner.
- Mugged for Disguise: He even mugged another guy just to have someone to pin it on.
- Noodle Incident: It's never explained exactly what he's in for. He can get quite violent when provoked, and threatens to kill Edgeworth on at least one occasion, which could imply something. But then again, Ryōken says several of the inmates were falsely accused, so you never know.
- Ridiculously Cute Critter: His polar bear buddy Rocky hangs off his chest with its tongue out and has the cutest puppy dog eyes. It loves him so much that it knows when he's in disguise...which completely blows his escape attempt.
- Tunnel King: He dug a tunnel in his cell that connected to Horace's cell, where he stole a guard's uniform.
- Villainous Breakdown: His face repeatedly snaps every which way like he's being punched in the face, then he collapses with his mouthpiece knocked out.
- Weight Woe: As a former boxer, he is obsessed with exercising and losing weight, trying to "make the weight limit". Though it might have something to do with being skinny enough to fit into the escape tunnel he dug and/or the guard's uniform he stole.
Ryōken Hōinbō (Sirhan Dogen)
A former assassin whose weapons of choice were a long knife and his large black dog, Anubis (Kuro in Japanese). The ringing of his signature bells — one attached to the handle of his knife and another to Anubis's collar — was said to be the last sound his victims would hear before their deaths. He is blind and Anubis is his guiding dog. He saved the lives of Horace and Simon when they were trapped in a car while it was freezing outside. Their parents abandoned them so he brought them to an orphanage. Later, when he was asked to assassinate Di-Jun Huang; near this very orphanage, Simon recognized him and saved his life. He was eventually caught, prosecuted by Edgeworth, and imprisoned.
- Anti-Villain: Type I. He's ruthless, make no mistake, but he's still honorable enough to refrain from any "needless" cruelty, and he also has a soft spot for children (such as when he saves the lives of two dying kids in a genuine Pet the Dog moment rather than any Pragmatic Villainy, as well as when he gives John a chance to kill him for Revenge over Huang's assassination).
- Badass Grandpa: A figurative grandpa figure to Simon.
- The Bad Guy Wins: In a sense his situation has improved by the end, revenge has been taken on his enemies and he looks forward to having Simon for company.
- Bald of Evil: Subverted. He may be an assassin, but he's not completely evil.
- Canine Companion: Anubis.
- Chekhov's Gunman/Red Herring : Zig-zags repeatedly between the two.
- You first meet him after a very ominous buildup, and upon seeing him he's practically the definition of Obviously Evil. But you don't really get much worthwhile information out of him. But later, after finding out the victim was seemingly killed by a dog, the player begins to suspect him. By the time you confront him again, Edgeworth is utterly convinced he's the killer. He isn't. Later subverted again when you find out though he didn't commit the murder, he was the indirect cause of it.
- As if that wasn't enough, in Case 5 you find out he was hired to kill the real president of Zheng Fa 12 years ago, so his body double could pull a Dead Person Impersonation. Said double turns up dead in the present. Surely he's the killer this time. Nope. But he does provide the final piece of the puzzle Edgeworth needs to work out who the real mastermind is.
- Contract on the Hitman: His employers planned to kill him after he killed the president of Zheng Fa. He was warned of this by Simon shortly after, so he was able to escape.
- Death Seeker: He offered John a chance to kill him, saying he is already tired of carving statues anyway. Being reunited with Simon seems to bring back his will to live though.
- Disc One Final Boss: Of Case 2. A very notable case, in that even Edgeworth is convinced he's the killer, and the scene is even set up just like a final confrontation.
- Handicapped Badass: He's blind. However, neither an age disparity nor a blindness disparity were enough to keep him from keeping rival Professional Killer Shelly from killing Simon in the game's climax.
- Hell Is That Noise: The ringing of his bells. Patricia Roland seemed to think so, given how the sound features in her breakdown.
- Hitman with a Heart: He, despite it not being a task to him and having no financial/personal incentive to him, saved two children who'd been abandoned in a car that was freezing; had Dogen not done this, the children would've almost certainly perished. As it turns out, the two kids were actually Simon and Knightley. He also has (and has a very loyal/heartfelt relationship with) his dog, Anubis.
- Karma Houdini: He dodges nearly everything the police tries to do to him, except for his arrest, which he isn't that disappointed about.
- Leitmotif: "Tone of an Assassin," a brooding, sinister theme bearing the ringing of his signature bell.
- Luxury Prison Suite: Perhaps even more so than Kristoph. Kay lampshades it during an investigation. Later deconstructed when it's revealed he gets his luxury treatment by threatening the warden.
- Might as Well Not Be in Prison at All: Though he's not able to kill directly anymore, he still maintains the influence he once had. The mere knowledge that he has 'dogs' outside the prison and that they know where her family is allows him to manipulate the warden into giving him anything he wants. Through this he established himself as the prison's "supplier", 'ordering' items for other prisoners in exchange for favors. Hell, his imprisonment allows him to play a major role in the Big Bad's plan.
- Named After Somebody Famous / Genius Bonus: In the fan translation, he's named after Sirhan Sirhan, the man who assassinated US Senator Robert F. Kennedy.
- Nightmare Fuel Station Attendant: The way how he operates and describes his assassination plots are perturbing.
- Noble Demon: It turns out the man's bullying of Roland was based in the knowledge she made his godson suffer greatly, and he cares deeply for said godson otherwise.
- Non-Standard Character Design: A blind, corpse-looking old man who can most likely kill you.
- Noodle Incident: We never find out exactly how he got caught and imprisoned.
- Parental Substitute: A father figure to Sōta.
- Pet the Dog: He is fond of his dog Anubis and he also rescued Horace and Simon when they were children, being a father figure to Simon.
- Please Kill Me If It Satisfies You: Offers this to John. He turns it down.
- Professional Killer: Rivals even Shelly de Killer in this department, although he's just as much a general crime lord.
- Prophet Eyes: He has cataracts.
- Punny Name: Dogen. Sure, it's probably pronounced "Doh-gen", but the letters are still there.
- Right-Hand Attack Dog: Pretty much his whole gimmick.
- The Rival: Shelly. As the dialogue during their standoff reveals, Shelly and Dogen knew each other in the past.
The Inherited Turnabout (Uketsugareshi Gyakuten)
Issei Tenkai (Jeffrey Master)
A professional chef who has his own show where he sings, dances, and makes sweets, such as cake. He's also slowly losing his sense of taste, but he's working on a cure. He is also the main suspect in the IS-7 case. Gregory Edgeworth was his defense attorney. He didn't manage to completely prove his innocence, but since he revealed that the autopsy report had to be faked because the victim's body was missing, the prosecutor, Manfred von Karma, had to charge him with accomplice to murder instead.
- Ambiguous Disorder: His "low blood sugar" episode in jail along with his sweets-only diet suggests he has diabetes.
- Chekhov's Gun: While in the detention center, he discovers he has an illness that leaves him unable to taste salt (he never noticed it before since he usually only eats desserts). Turns out, the real killer has a more severe form of the same illness and can't taste anything, and it plays a part in his motive.
- Cruel to Be Kind: Master bluntly telling Katherine to stop focusing on his own imprisonment, as well as himself and his well being altogether breaks Katherine's heart. He did so to try to break Katherine's Undying Loyalty towards him so that she can focus on her own life when she grows up. Sadly becomes deconstructed, because Katherine never really takes Master's words to heart and still ends up planning revenge for his false imprisonment for nearly 18 years....
- Disease Bleach: If you want proof of how scary von Karma is, just look at this man's afro. It went white after a single day of interrogation.
- False Confession: He eventually cracked under the pressure and confessed. The fact that von Karma questioned him day and night, causing his hair to turn white, helped a lot.
- Leitmotif: "Sweet Happiness".
- Meaningful Name / Punny Name: His name comes from the phrase "tenka ichi", meaning "the best on earth", referencing his reputation of his pastries being the best around. For once, the pun is actually acknowledged in-game, since it's his nickname. Meanwhile, his Fan Translation name refers to him being a master at pastry-making. Or, rather, a "Masterchef."
- Nice Guy: An extraordinarily kind man, a fact that underscores the tragedy of his false imprisonment.
- Parental Substitute: To Katherine Hall.
- Perpetual Frowner: Only his past self.
Delicy Scone (Delicia Scones)
An another confectionery chef who participated in the dessert-making contest. She is from England. She is actually a pharmacist who works for the Master Group, who was sent to oversee the secret Master Recipe. She acts as an old lady and is the only character who hasn't changed a bit in 18 years.
- Big Eater: She snacks on the other contestants' works. It depends how much she snacks on them but Gustavia doesn't seem to take kindly to that habit.
- Character Tic: Most of the time, you'll see her stirring in her bowl or holding it.
- Cheaters Never Prosper: She apparently cheated her way into the competition so she can do her job: never let Master's works go public. That's one more reason for the murderer to attempt to frame her.
- Feminine Women Can Cook: Subverted. She's not incompetent, but she herself admits she can't really cook on a scale required by a competition and is honestly surprised her own cutting of corners wasn't discovered until Gregory Edgeworth came along.
- Frameup: Gustavia tried to frame her by placing the murder weapon in her room. She only becomes a suspect for a short while as a result.
- He Knows Too Much: The Master Group sent her to spy on Master and made sure his work never goes public.
- The Mole: Her true purpose in the competition was to get the Angel's Recipe and the great deal of pharmaceutical genius contained within. Since the organization that sent her technically owns the Angel's Recipe, it's not held against her.
- The Napoleon: Only partly. She's not evil, but she can get angry real fast when you insult her.
- The Nicknamer: To everyone. Including Manfred Von Karma.
- Non-Standard Character Design: Her eyes look different from the rest of the Ace Attorney characters but of course, no one comments on it.
- Obfuscating Stupidity: Multiple layers of it, in fact! When Gregory first exposes the fact that she doesn't know the first thing about cooking and her contest entries are just props, she claims she is just a Big Eater who entered the contest on a whim because she loved sweets, and never expected to get all the way to the finals. Naturally, it's much more complicated than that, and when you meet her in the present it's clear she's much smarter than she acts. She's able to produce irrefutable evidence clearing her name when accused, for one.
- Older Than They Look: Her exact age is unknown but she claims to be very old. It's a running joke in the case.
- Punny Name: Delicious scone. A scone is a small British quick bread of Scottish origin, and she claims to be from England.
- Rummage Fail: Does one when looking for the theft report giving her a perfect alibi, but it's played with: it's a blink-and-you-miss-it moment, but one of the "wrong" objects she produces actually is relevant to the case, it just won't play a part until later.
- Secret Identity: Not really. She's actually a pharmacist, even though she looks like a pastry chef.
- Why Did It Have To Be Bugs?: Hates cockroaches with a passion, so much so that she carries an incredibly strong pesticide with her at all times.
Tsukasa Oyashiki (Katherine Hall)
A girl who assists Jeffrey Master on his show. She was abandoned by her biological parents who left her at Master's doorstep. He raised her as his own daughter. She hid the body of the IS-7 victim and prepared a trap for the real murderer, knowing that he would eventually return.
- Dangerously Genre Savvy: Her trap against Gustavia. Realizing only the two of them know about Dover's body, she manages to lure Gustavia into an attempted Vigilante Execution by switching the hiding spot with a fake rigged with poison gas.
- Doorstop Baby: How she first appeared to Master.
- Framing the Guilty Party: Tries to do this after 18 years.
- Happily Adopted: By Master, though it's hard to see this relationship at first glance.
- Leitmotif: "Sweet Dance".
- Meaningful Name / Punny Name:
- Her name contains the kanji for "resident of mansion" and "blanket". A reference to how she first hid the body.
- Her full name is a pun on "o yashiki o tsukasadoru" which means "[to be] responsible for the residence". She takes care of Master's mansion.
- Her surname Oyashiki may be a pun on "okashi", which means sweets.
- Her name in the fan translation is a pun on "catering hall."
- Meido: Acts as this during the show and outside of it.
- Red Herring: Edgeworth concludes fairly early on in the case's present-day segment that she was responsible for the murder 18 years ago, and also the attempt on Gustavia's life. Subverted; while she didn't commit the original murder, she did try to kill Gustavia.
- She Is All Grown Up: Appearance only, her personality is still the same as 18 years ago.
- Single Tear: When she breaks down she reaches a hand up dramatically and cries a single tear.
- Sympathetic Murderer: More like Sympathetic Attempted-Murderer. After losing both Master and her home for almost two decades, combined with believing Gustavia got Off on a Technicality for it, it's no surprise she finally snapped and attempted to commit a Vigilante Execution.
- Tears of Remorse: Subverted. She is arrested for poisoning, but she's glad that Tenkai finally got free after all those years.
- Undying Loyalty: Her devotion towards Master, which concerns him regarding that she hardly focuses on her own well-being as a result.
- Unwitting Instigator of Doom: With her hiding the sculptures, one of which, unbeknownst to her, contained the body, she's indirectly responsible for the forgery of evidence, which led to von Karma's penalty, and then the DL-6 incident. And considering the aftermath of THAT case she is also indirectly responsible for the fall of the Fey Clan and Dahlia's Start of Darkness, the poor girl has a lot of blood on her hands. Though as Raymond points out, there's a good chance that things would have unfolded mostly as they did anyway, except with Delicia Scones being the falsely convicted one rather than Master.
- The Woobie: Considered one in-universe by Gregory and Raymond, her backstory even makes Gregory shed a few tears.
Yutaka Kazami (Dane Gustavia)
A pastry chef without the ability to taste. His son was therefore very valuable to him. He and the victim of IS-7, Isaac Dover, secretly collaborated together in a dessert-making contest. Gustavia was in charge of the flavor. Isaac betrayed him, abducted his son and later blackmailed him when he found out about his disability. Gustavia killed him and fled the country.
- Anti-Villain: Played with. Gustavia as a person is actually pretty awful (chiefly, completely cutting his son out of his life just because he couldn't assist with his final dessert entry but also equating Delicia's actions during the contest as enough of an offense to warrant framing her and despite claiming respect for Master, acting remorseless about his wrongful incarceration for 18 years) but on the subject of murdering Dover, he wasn't as much a Jerkass as Dover (with Dover reneging on their agreement at the last minute and then threatening to ruin Gustavia's career and livelihood by revealing his taste disorder unless he paid up a blackmail followed by attacking Gustavia first; Dover is also the reason Gustavia's son no-showed for the finals and what set off the chain of events to follow).
- Arrogant Pastry Chef Guy: He considers his work almost akin to martial arts.
- Asshole Victim: Almost became this when a Despair Event Horizon-crossing Kate tried to get Revenge for Master.
- Badass Beard: In the present.
- Bring My Red Jacket: He claims that he frequently manages to burn or cut himself when cooking, so he started wearing red so that his clothes won't show bloodstains. It probably came in handy when he was killing someone else, too.
- Chekhov's Gunman: At the end his role becomes a lot more important. He's not just a simple criminal. He's the father of Simon Keyes.
- Evil Laugh: Even more proof that he's Simon's father. Edgeworth actually sees the resemblance.
- For Want of a Nail: Gustavia's whole feud with Dover is what essentially kickstarts the whole series's plot. After Dover is murdered, Gregory Edgeworth meets von Karma, then the latter's forgeries are exposed (Though the one that was exposed actually wasn't his doing) and he gets his first penalty ever. Then Gregory Edgeworth gets killed and Miles is taken by von Karma...
- I Have No Son: Claims this in the present. He pretty much only valued his son as a guinea pig for his cooking, and once he started to get his taste back, his son had outlived his usefulness.
- Ironic Word: His English fan-translated name comes from the same Latin root word "to enjoy or rejoice" (which many characters do not do directly or indirectly as a result of his actions). This word also happens to be the root for the word "gustatory", as in "gustatory system", the combination of saliva and taste buds that facilitate the sense of taste, which Gustavia lacks.
- Jerkass: Once his son didn't show up for the last legs of the competition and Gustavia recovered his sense of taste after the event was over, he never went back to look for him. He also displays joy to cause so much trouble to Katherine and Master while the law can't touch him until it does.
- Leitmotif: "Brandished Flavor"
- Luke, I Am Your Father: To Simon Keyes.
- Meaningful Name / Punny Name: His name means "full of flavor". He most certainly isn't. His surname contains the kanji for "weathercock". In the fan translation, his first name can be seen as a shortened form of "danish," and Gustavia is a corruption of the spanish for tastebuds 'gustativa', as well as a name associated with Sweden, which would make him sweetish.
- Not So Stoic: He normally speaks very polite, somewhat archaic language and acts like your typical Cool Old Guy in the present. He has one hell of an Evil Laugh, and practically borders on Evil Is Hammy once he's cornered.
- Real Men Are Pastry Chefs: And he's very serious about it too.
- Seppuku: Uses a dough effigy of himself as a surrogate for this in his Villainous Breakdown.
- Serious Business: Desserts. So much so that he framed Delicia simply on account of her being "not a real pastry chef", and is deeply disappointed Jeffrey was suspected instead, as he considered him a Worthy Opponent.
- The Bad Guy Wins: Arrested but managed to pursue and fulfill his goal during his long freedom. He may lose his freedom but his talents can still be appreciated.
- To Be a Master: Claims this as his sole goal for entering the contest. There's more to it than that.
- Took a Level in Badass: Uh, as "badass" as pastry sculpting can be. He absolutely sucked in the flashback portion. In the present, he's creating works of art in seconds (including a life-sized replica of himself).
- Villainous Breakdown: Carves a dough effigy of himself with his bare hands, then slices it in half.
- Wake-Up Call Boss: His testimony is considerably harder to crack than anything beforehand. And even then, he still has the Statute of Limitations on his side...
- Your Princess Is in Another Castle: You prove his motive, means and opportunity and then, in a shock subversion of the series' normal conventions, he proceeds to flat-out admit everything you said is true and gives a full confession. It seems like it's all over... until he goes Laughing Mad and reminds you of the Statute of Limitations.
The Forgotten Turnabout (Bokyaku no Gyakuten)
Tōko Mutō (Karin Jenson)
A university hospital nurse. She's Bonnie Young's granddaughter and she assists her from time to time. She found and treated Kay after she fell down and lost her memories. She was forced to work with Blaise Debeste. He made her don a mask and the victim's clothes to pretend she was one of the auction customers.
- Dead Person Impersonation: After Blaise killed Jill during the auction, he made Karin switch clothes with her and pretend she was one of the customers.
- Generation Xerox: She ended up just like her grandmother.
- Meaningful Name/Punny Name: Her Japanese name comes from the word for glucose (budoutou). Her name in the Fan Translation comes from "injection".
- Obfuscating Stupidity: While her treatment of patients is a little too much (Kay didn't need to be covered up so much with bandages), her clumsiness comes to a full stop when she deliberately writes down false information about patient records only because her grandmother's reputation was being threatened.
- Translator Buddy: To her grandma.
Otome Itami (Bonnie Young)
A coroner and the director of the Dye-Young hospital (Itami Hospital in Japanese) who works with Karin Jensen;, her grandchild. She's very old and when speaking she always whispers it to Karin who then relays it loud enough to the others. She was forced to work with Blaise Debeste. He made her create a fake autopsy report, which he then gave to von Karma. Blaise then threatens to ruin her and her hospital's reputation with this fact, in order to get Karin to work for him.
- Boke and Tsukkomi Routine: Whenever she appears with Karin, acting as the tsukkomi whenever Karin starts going out of topic during conversation and doing a Dope Slap at her with her cane. Gumshoe lampshades this upon your initial meeting with them together, wondering if they're currently witnessing a comedy act at the moment.
- The Dividual: She never appears without her granddaughter.
- Meaningful Name / Punny Name: "Itami o tome" means "stop the pain".
- Non-Indicative Name: Usually, "otome" is used to describe a young lady. She most definitely isn't.
- Genius Bonus: Bonnie is Scottish for "pretty."
- Screw Politeness, I'm a Senior!: She's kind to those she likes. To the others, not so much.
- The Voiceless: She does talk, but you can't hear her.
- Younger Than They Look: She looks like she's in her eighties or nineties, but she's only sixty years old. This is especially weird when you look at Blaise Debeste, who is 8 years older than she is and quite spry.
The Grand Turnabout (Oinaru Gyakuten)
Shimon Aizawa (John Marsh)
A 13-year old boy. He's a middle school actor, often mistaken for an elementary school student. He has a starring role in the upcoming Moozilla movie, which is being filmed by the Global Studios. His mother, Amy, died a few years ago so her cousin, Justine Courtney now takes care of him. He is the son of the real Di-Jun Huang.
- Animal Motif: Based around the cow theme.
- Badass Adorable: When he's introduced, he impresses Edgeworth by holding his ground against Lang. In the end, he even almost kills a professional assassin, and his reason for ultimately stopping from doing so isn't cowardice, but love for his adoptive mother.
- Berserk Button: Don't call him an Elementary School student.
- Bratty Half-Pint: He addresses adults as old people and doesn't like to be seen with his mother whenever she wants him to behave.
- Cheerful Child: Not that it's easy to tell, but he's not as surly as he seems. You never see him smile once, however.
- Chekhov's Gunman: He first appears during Case 3, watching the ice sculptures in the gallery, then in Case 4, helping with the Moozilla movie, before finally becoming a witness in Case 5.
- Disappeared Dad: He's been dead for a long time.
- Failed a Spot Check: Completely failed to notice Blaise Debeste hiding in the lot and Simon Keyes lowering a body into the lot from a hot-air balloon. Granted, he had earphones in at maximum volume and was talking on the phone for the latter event, but still.
- Happily Adopted: He's aware that Judge Courtney is not his biological mother, yet he calls her as his mother anyways and genuinely does think of her as family.
- Jerk with a Heart of Gold: He's about as brash and cranky as you'd expect a 13-year old boy to be, but he cares about his adoptive mother and can concede to showing respect to people if they impress him. He's really not a bad kid. He also refuses Dogen's Please Kill Me If It Satisfies You, not because of If You Kill Him, You Will Be Just Like Him, but rather because allowing himself to become a murderer would cause pain for his adoptive mother and everyone else who cares about him.
- Leitmotif: "Pointed Age," a cool and slightly funky theme that reflects how assertive and uncaring he is.
- Meaningful Name / Punny Name: "Shimon" means fingerprints.
- Missing Mom: She died a few years ago so he was adopted by her cousin.
- The Napoleon: He's as short as an Elementary school student and isn't proud of it, being a Berserk Button of his. It's possibly also the reason why he's keen on drinking so much milk.
- Older Than They Look: He's 13, and a Middle School student. Most people are surprised once they find out.
- The Stoic: He doesn't smile throughout the entire game. Once you startle him though, he's just like any other boy.
- Tell Me About My Father: The Huang they saw killed is an imposter. And only the cowardly imposter, an animal-loving warden, a corrupt prosecutor, a blind monk-assassin and a circus clown knows. So it's perfectly understandable.
- Trademark Favorite Food: Milk. His damage sprite shows that his backpack contains more milk cartons, and when he gets kidnapped, a milk carton is used to track him down.
- You Killed My Father: To Dogen. He contemplated Revenge for a while, but ultimately decided against it.