Note: Due to the sheer amount of marked spoilers, all spoilers for Miles Edgeworth: Ace Attorney Investigations have now been unmarked. Read cautiously!
Jacques Portsman (Makoto Yuki)
Detailed on Prosecutors and Judges.
Rhoda Teneiro (Ichiru Konomichi)
A chief flight attendant for iFly Airlines, and a witness and Edgeworth's temporary partner in case two of Ace Attorney Investigations.
- Anime Hair: However you describe her hairstyle. You can't see it from the picture provided, but her bun is a series of stacked cubes.
- Break the Cutie: Edgeworth gives her this after telling her her suitcase idea stinks and foiling her logic before that.
- Expy: Of Jane Grey from Death in the Clouds. Including to looking similar to Grey's actress is she also The Protagonist's assistant during the case, also a Sexy Stewardess, the murder happens at the plane she worked at, and she falls in love with someone involved with the case (Teneiro with the first suspect (Edgeworth), Grey with the murderer).
- Postmodernism: Apparently why her suitcase starts to sell on the Internet.
- Punny Name: Both her English and Japanese names refer to roads.
- It also sounds like 'Rio de Janeiro' which is a popular flying destination.
- Sexy Stewardess: Although she doesn't have the Gag Boobs that Cammy has.
- Stepford Smiler: Prides herself on her "service with a smile even if we're crashing into the ocean" mentality; said smile is full of eye- and corner of mouth-twitching. Which leads to a Minor Moment of Heartwarming when she gives Edgeworth a genuine smile when he gets her off the hook. Aww.
- Tsundere: Called out by Cammy that she's this towards Edgeworth. Rhoda reacts appropriately.
Zinc Lablanc II (Zinc White II)
A Borginian art dealer with a short temper.
- Blunt Metaphors Trauma: Doesn't quite have a grasp on the English language, as the quote above will show.
- Butt-Monkey: He finds out that his treasured piece of art is a worthless fake, not before falling on it from a height without anyone caring. He gets tricked into buying the fake Primidux Statue in the ending.
- Eloquent in My Native Tongue: Obviously, he speaks very well in Borginian.
- Fat Bastard: Although he isn't the killer.
- Finger Gun: Sometimes he puts both his hands together and juts his arms forward.
- Giving Someone the Pointer Finger: He points at people so much that he might as well pass for a lawyer in this universe.
- Gonk: Compared to the cast, his face is incredibly pudgy. He also sports a long, pointy nose and multiple chins.
- He-Man Woman Hater: Played painfully straight, inwhich he has no respect for either of the flight attendants claiming that they have no right to talk back to him and he rather wouldn't see them.
- Jerkass: When Edgeworth is still pinned as the killer, Lablanc insists that it should stay that way so his flight can continue uninterrupted.
- Leitmotif: "Time is Money".
- Narcissist: Strongly implied as he's a huge Jerkass to people that aren't him but gives himself pretty things. He also sees his time a lot more valuable than others' time.
- No Indoor Voice: The number of times he's not shouting at Edgeworth (or anyone else, for that matter) can be counted on one hand.
- Punny Name: Zinc(II) oxide is white, and blanc is the French word for white.
- Rich Bitch: He has a lot of money thanks to his art collection and he is certainly a bitch to everyone he meets.
Cammy Meele (Wakana Shiraoto)
Rhoda's assistant flight attendant, an airheaded, sleepy young woman fluent in Borginian. Is actually part of the smuggling ring. Her job was to oversee the transportation of the smuggled goods in between countries. She murdered Akbey Hicks by throwing him over a rail in a panic upon seeing him inspecting the cargo hold when he was hot on the ring's trail.
- Absolute Cleavage: From the front flap of her uniform being removed.
- Big "NO!": After being exposed as Akbey Hicks' murderer.
- Chekhov's Gunman: She is first seen standing behind Leblanc, half asleep, right next to the emergency escape hatch in the first class area of the plane she's working on.
- Cunning Linguist: The only member of the crew who knows Borginian. This helps prove she's the murderer.
- Dangerously Short Skirt: As well.
- Dull Eyes of Unhappiness: She has these as a result of constantly falling asleep and waking up again. They become normal when she drops the 'sleepy' act.
- The Ditz: Comes from being only half-awake. As with that, it's an act. In fact, she's actually quite focused and intelligent, as her use of the Indy Ploy shows.
- Femme Fatale: The killer of "Turnabout Airlines".
- Gag Boobs: Probably the biggest rack in the entire game.
- Girls Love Stuffed Animals: Carries around a teddy bear of the airline mascot.
- Indy Ploy: Murdered her victim in the heat of the moment, able to think of a complex framing scheme in time to actually create a case out of whole cloth.
- Lazy Bum: While her sleepiness turns out to apparently be a facade, the messiness of her bed in the attendant's room and the lack of actual work she seems to do on the plane suggests that some of her laziness is genuine.
- Leitmotif: "Good Night~".
- Monumental Theft: She helped steal the Alif Red statue and have it swapped with a fake to fool Zinc Lablanc II.
- Not a Morning Person: She's always falling asleep, yawning, and rubbing her eyes awake. She's faking it, though.
- Obfuscating Stupidity: Once suspicion is raised on her, she drops the Sleepyhead persona and gets serious.
- Punny Name: "Cammy Meele" is likely derived from "chamomile"; chamomile tea is very effective in helping one fall asleep. "Shiraoto" means "white noise".
- Rapunzel Hair: Almost knee-length.
- Sexy Stewardess: It's mostly due to her open shirt showing off a great amount of cleavage.
- The Slacker: Seems to be this, as she describes Rhoda as being in charge of most areas, but it's noted that she handles passengers who can't speak English.
- Smoking Is Not Cool: Appears to have been a heavy smoker not long before the game begins as her hair is damaged and blowing bubbles aggressively when nervous (blowing bubbles is done by some to get over their smoking habit).
- Snot Bubble: When she's asleep. Invoked by way of bubble pipe.
- Villainous Breakdown: She screams a Big No while blowing on her bubble pipe, which causes millions of bubbles to repeatedly slap her in the face while she's screaming.
- Motive Rant: "He was interpol... I couldn't stop it... I brought him here... He started taking pictures... I... I couldn't be found out... I was scared... I was in trouble... I... I.... I I I I I I I I I I I I I..."
Ernest Amano (Joichiro Amanogawa)
Owner of a company called the Amano Group. Edgeworth is indebted to him because Amano funded his studies abroad. Member of the smuggling ring, and used his company to help it. He isn't the murderer though. Nice try.
- Affably Evil: Even after he reveals his true colors, he's relatively polite.
- Bald of Evil: He has a big, shiny head while he's also head of a smuggling ring.
- Broken Pedestal: Edgeworth had a great deal of respect for him and agreed to carry in the ransom money as a personal favor. He says he "owe(s) Mr. Amano a debt of gratitude. But he must pay his debt to society."
- Corrupt Corporate Executive: It didn't seem like it at first, but backstories introduced later shows that his company has connections with the smuggling ring and assisted in their works and cover-up.
- Dirty Coward: He tries desperately to get off the hook for his attempts to cover for his son, even to the point of saying his son is the only one they need to arrest. Unfortunately for him, Lang has enough evidence already.
- Evil, Inc.: His company, the Amano Group, was a front for an international smuggling ring.
- Eyes Always Shut: He beats Mr. Kitaki in this instance since they never open.
- First-Name Basis: Refers to Edgeworth, Von Karma and Portsman by their first names.
- Punny Name: Either Ernest Man or Honest Man. It's also an Ironic Name considering his true nature.
- Screw the Rules, I Have Money!: Gets him into prison for the effort.
- Verbal Tic: "Now, now..."
- Yakuza: Implied as the yakuza is often linked to smuggling.
Lance Amano (Hikaru Amanogawa)
Ernest's only son, and victim of kidnapping. He orchestrated his own kidnapping with his girlfriend Laruen and the Amano butler Oliver Deacon in order to extort money from his father to pay back a large debt he owes. During the kidnapping he accidentally killed Deacon during a scuffle where Oliver became uncooperative (or so he claims) then set about creating a framing scheme where he tried to convince Lauren she was the responsible party.
- Bishōnen: A parody. He fits all of the criteria but is nonetheless unattractive.
- Chained by Fashion: Not by his own choice; Lance spends all the case handcuffed. His hurt/take damage animation shows said handcuffs are a bit too big for him, though, and in his breakdown, they snap apart.
- Chick Magnet: His father thinks so, but while he does have a cute girlfriend (whom he doesn't hesitate to betray), the only other girl supposedly interested in him is Viola Cadaverini.
- Distressed Damsel: Subverted. As shown above, he orchestrated his own kidnapping to pay off a debt.
- Dramatic Wind: He somehow has the ability to summon one when he makes a point.
- Indy Ploy: Lance wound up with a body after the kidnapping at the haunted house went sour. Out of thin air, he crafted an elaborate plan to pin the blame of the murder on his girlfriend Lauren, starting by convincing her he was still alive.
- Inelegant Blubbering: Bursts into utterly undignified tears during his Villainous Breakdown.
- Jerkass: He orchestrated his own kidnapping to get money from his worried father, threatened to harm his own girlfriend to get help from her father and tried to get her sentenced for the death of said father... which he, of course, caused himself (accidentally, or so he claims).
- Mafia Prince: Implied along with his father implied to be a Yakuza boss.
- Meaningful Name: "Amanogawa" is the Japanese name for the Milky Way. See Lauren's section below for relevance.
- Smug Snake: He really doesn't care about his girlfriend at all and tries to pin the killing on her. It's also suggested that he roped Oliver into the whole affair by threatening to harm Lauren if he didn't play along.
- Talks Like a Simile: He even berates Edgeworth for not understanding what he meant by saying he was "left behind like an unwanted mutt".
- Tears of Remorse: As part of his Villainous Breakdown.
- Villainous Breakdown: Manages to break his handcuffs, and then sniffles and then starts sobbing.
- Wounded Gazelle Gambit: Part of his on-the-fly plan is to fake a kidnapping using himself.
Lauren Paups (Himeko Orito)
Lance's girlfriend. Seems prone to falling in love with bishonen. Involved in the kidnapping plan. Is Oliver Deacon/Colin Devorae's daughter.
- Attack Backfire: Borderline. Edgeworth's trademark Death Glare does worry her... because she finds it so attractive that she has to loudly tell herself that she's in love with Lance.
- Blush Sticker: When she gets all lovey-dovey, she sports these.
- Important Haircut: To the point of exaggeration; she takes a pair of scissors to her hair whenever she feels deeply ashamed or distressed. Although she never actually cuts any of it in-game, when you consider how much shorter and more uneven most of her hair is compared to the two locks she has in front, you can probably figure out for yourself just how often this sort of thing comes up.
- Karma Houdini: Narrowly averted. She confessed to extortion, but at the end of the case she appears to just walk away. Then again, she lost something bigger than a few years of freedom... The end sequence shows that she got in trouble with the law after all, as she refers to spending some time in the detention center.
- Love Martyr: She goes along with the kidnapping scheme entirely for Lance's sake. He repays her devotion by leading her to believe she killed their accomplice and, unbeknownst to her, her father, and setting her up to take the fall for it.
- Meaningful Name: Her Japanese name, along with Lance's, is a reference to the East Asian folktale "The Princess and the Cowherd", wherein the princess, Orihime (Lauren's name being Himeko Orito) is separated from her lover, the cowherd, by the Milky Way (Amanogawa).
- Meido: In appearance only, it seems.
- Punny Name: Lance's nickname for her is Lollie, making it Lollipops.
- Self-Made Orphan: Was led to believe that she was this.
- Shrinking Violet: She's a shy lady that follows Lance wherever she goes. Edgeworth spooks (and even enamors) her very easily.
- Thinking Out Loud: Doesn't understand the concept of inner monologue. This is lampshaded by Kay.
- Trademark Favorite Food: Ice pops, to the point where she takes a lick or two every so often.
Tyrell Badd (Ittetsu Bado)
Detailed on Detectives and Other Law Enforcement Officers.
Calisto Yew (Himiko Kazura)
Detailed on Defense Attorneys and Assistants.
Colias Palaeno (Damian Hinge)
Ambassador of Babahl. Outwardly a bit of The Slacker, but tries really hard to promote tourism to his country.
- Animal Motifs: Butterflies, just like Dahlia Hawthorne, but he's completely innocent, despite his somewhat shady behaviour.
- "Ass" in Ambassador: Of the too-eager variety. Not as bad as most examples, though.
- Be as Unhelpful as Possible: Arguably the only character in the entire series to completely avert this. He is always polite, answers all your questions honestly and helps in any way he can. In a clever subversion of player expectations, he is also completely innocent.
- His specific kind of helpfulness and honesty, in fact, is an early clue that he is exactly the kind of person he seems to be. When Edgeworth discusses the statue switch with Palaeno, Palaeno replies that they've confirmed they have the other country's statue. He knows because Babahl's own statue is the replica, and the one sitting in Coachen's office now is the real deal. That he knew this beforehand and freely admits it now, where most people would feign ignorance in the same situation (especially since it's against the interests of Babahl to admit such a thing), speaks well to his character.
- Competition Coupon Madness: Kind of. These coupons are only useful in Babahl. But you have to wonder where he gets all those coupons from?! Even his guards give away coupons! His country must really be kind to tourists.
- One suspects his secretary, Manny Coachen, came up with the coupons as a legitimate reason for their embassy to have its own printing press...
- Color-Coded Eyes: They are really bright, and probably a reference to how whitcrystal oil burns green.
- Crazy-Prepared: Subverted. There was going to be a test to see which country's Primidux statue is the real deal. The Primidux statue of Babahl is fake, so he planned to negotiate with Alba to say the test results were inconclusive. However, by that time Coachen had already planned to steal the real statue for Babahl — and Alba and Shih-na had already arranged to swap the statues anyway — so it was pointless twice over.
- Dark-Skinned Blond: He has tan skin and golden hair that flows behind his head.
- Department of Redundancy Department:Palaeno: [Babahlese ink is] made from whitcrystal oil, which is mined from our mineral mines.
- Determinator: He is determined to find Coachen's killer. He goes as far as forcing Alba to testify about his alibi since it would look bad for him if he refused.
- Diplomatic Impunity: He never even bothers to use his immunity though. And the only time this is in effect in Babahl was around the beginning of the case, causing Franziska to turn to Palaeno.
- Don't Touch It, You Idiot!: He very politely asks you not to touch the Primidux Statue since it's a national treasure. And since the statues were switched, you'll become pretty suspicious. But when it is discovered the statue currently in Allebahst has a plate made for counterfeiting, someone else is being suspected.
- Everybody Knew Already: He knew that Coachen is the killer of KG-8, which isn't that surprising to the player but to Edgeworth it is.
- Eyes Always Shut: Due to his incessant smiling. He only ever opens his eyes when he gets serious. Several players reported being disturbed upon seeing it. Others reported swooning.
- A Father to His Men: He really does have Babahl's best interest in mind, and on a personal level he feels obligated to help solve Coachen's murder because Coachen was his subordinate, even though he knows full well at this point that the man was a crook. This gives him something in common with (of all people) Agent Lang.
- Hand Rubbing: If you look carefully, his hands resemble a butterfly.
- It's All My Fault: When he realized the Babahlese statue was the fake, Coachen reassured him that Palaeno would still be the Codohpian ambassador. Then Coachen ordered a heist of the real Primidux statue. Palaeno blames himself for this, but by the time we have the full story, it's obvious Coachen did it all for himself.
- Leitmotif: "Two Embassies ~ The Lands of the Butterfly and the Flower"
- Let's Get Dangerous!: Keeps Alba and co. from leaving with a squad of his own.
- Meaningful Name: Colias palaeno is a bright green-yellow butterfly. The green and yellow match his own colors, and the butterfly is the Bahbahlese national symbol. His second Japanese name is 'Hinge' or 'Hinji'; referring to the butterfly hinge.
- Names to Run Away from Really Fast: Only his Japanese name though. You will think he's the killer because his first name is Damian in the Japanese version.
- Nice Guy: This can easily fool anyone into thinking he's the murderer.
- The Pollyanna: His country is not doing well, his embassy is even worse off, and the one person he'd come to depend on to fix everything is dead and a crook. Yet Palaeno is, for the most part, genuinely cheerful and optimistic.
- Reasonable Authority Figure: Stands as one of the all-round nicest guys in the whole series.
- Red Herring: His eyes, Hand Rubbing gestures, way too wide smile and ingratiating personality serve to make him look sleazy and suspicious early on, but he proves to be genuinely amiable as the case wears on.
- Sheep in Sheep's Clothing: He's so eager to cooperate that he must have ulterior motives, right? Nope. He really is just a helpful guy.
- Stepford Smiler: He keeps up his smile, even while talking about how his embassy is ruined. Edgeworth even notes it in his thoughts. It's almost as he was happy his embassy was in trouble. Although later on, you can see it's only a habit of his of his words not matching his facial expressions.
Quercus Alba (Carnage Onred)
Ambassador of Allebahst. Appears to be a good old man who occasionally blames himself for mistakes. Leader of the smuggling ring, thus the Big Bad. Killed Manny Coachen during a fight where Coachen attempted to attack him then orchestrated a complex alibi to make it seem as though Coachen had died in a different part of the Allhebast/Babahl embassy.
- Annoying Laugh: Has a mocking laugh after his reveal.
- "Ass" in Ambassador: Especially after The Reveal, but even before that there are some subtle hints that he's not a nice guy.
- Badass Baritone: When he speaks the screen shakes almost constantly.
- Beard of Evil: Especially once his "true self" is revealed.
- Beard of Sorrow: Goes with how he blames himself for all the problems. Of course, that's just to go along with his "frail old man" act.
- Big Bad: He's ultimately responsible for everything that happened in this game.
- Bitch in Sheep's Clothing: He appears to be a weak, kindly old man, but in reality he's in complete control of just about everything and is absolutely ruthless.
- Bling of War: His chest is covered in medals. He has a habit of smirking and letting his largest one gleam once he shows his true face.
- Breaking the Fourth Wall: Take a look at his eyes every time he does this. He's not sneering towards Edgeworth... he's sneering towards you, the player. What a shameless troll!
- The Chessmaster: The man behind everything in this game.
- Climax Boss: It takes two whole gameplay segments just to take this guy down.
- Cool Old Guy: Very cooperative and kind... until his true colors were revealed.
- Determinator: He's probably caused more than a few players to scream "JUST GIVE UP ALREADY!" However, Edgeworth is just as determined to take him down as Alba is determined to get away with it.
- Diplomatic Impunity: Being an ambassador, he has this. Invokes it to trying to get out of the country after Edgeworth learns of his role as the smuggling ring's leader, before it's revoked. That said, he puts up one hell of a fight even after he loses it, fitting for the game's Final Boss.
- Evil Old Folks: The leader of the smuggling ring with a giant rap sheet of crimes. He's not even remotely sorry for any of it, feeling as if he's above it all.
- Evil Sounds Deep: His "OBJECTION!" soundbyte is very similar to Manfred von Karma's.
- Evil vs. Evil: He and his victim are equally as self-centered and corrupt. It all came down to who got to who first, really.
- Eyes Always Shut: They open when he "transforms".
- Fan Boy: Of the Steel Samurai. Or rather, he pretended to be one to secure an alibi.
- Final Boss: And an annoyingly persistent one at that.
- Four-Star Badass: Manny had a longer knife and was half Alba's age. He barely nicked Alba's shoulder. Also, if Alba has to make that transition out of his weak-old-man facade to stand up-right, he was able to defend himself from an ambush while hunched over by using a statue, of all things, as a bludgeon.
- From Camouflage to Criminal: He goes from a general who saved his country to a leader of a smuggling ring.
- General Ripper: While we never hear much about Alba's former military career, if this exchange (and his overall ruthlessness) is anything to go by...Edgeworth: Is not every life precious?
Alba: That doesn't even warrant an answer.
- Hoist by His Own Petard: Twice. One occasion has him attempting to secure an alibi by claiming to have been watching a Steel Samurai stage show and citing the Samurai's debuting special move as proof that he was there. Problem is, not only was a different move used due to unforeseen circumstances, but the only way Alba could have known of the move he named was if he had been backstage during the time of the murder. Later, you present him with a bloodstained hot dog box, assuming that the blood belongs to the victim. Alba correctly points out that such evidence would do nothing to place him at the crime scene personally, and the blood turns out not to be the victim's anyway. Rather, it is the blood of Alba himself, who tells you earlier in the case that he had been stabbed in order to create a justified self-defense plea for a separate murder.
- It's All My Fault: Part of his front.
- Large and in Charge: At full height, he's taller than everyone in the game.
- Large Ham: He's such a ham after he discards his "frail old man" facade that he gets his own Objection clip.
- Leitmotif: "The Enemy Who Surpasses The Law," which is only heard once you get him to stand up.
- Marathon Boss: A rare example of one in a Visual Novel. His entire interrogation sequence will likely take the player around an hour and a half to complete it all. There's a good reason the game gives you a checkpoint in the middle of the entire interrogation.
- The Man Behind the Man: He is this to all the murderers in AAI; they're all connected to him or the smuggling ring somehow. Portsman? Amoral Attorney whose job was to make trials end in the ring's favor. Cammy Meele? Undercover agent tasked with overseeing the transportation of smuggled goods inbetween countries. Lance Amano? Well, he's not a member of the smuggling ring, but his dad certainly was. Calisto Yew? The Dragon.
- Manipulative Bastard: His actions actually
- Meaningful Name: Quercus alba is the scientific name for the white oak. The national symbol of Allebahst is the flower, and by extension plants. Fans have suggested that "Carnage Onred" is a pun on "red carnation".
- Names to Run Away from Really Fast: His Japanese name is Carnage Onred. It's probably a play on "carnation red", but damn if "Carnage on Red" isn't appropriately evocative.
- Obfuscating Disability: The weak frail old man look is just an act, though he later admits he knows the pain of having a bad hip because of it.
- Obfuscating Stupidity: He pretends to be a good, if feeble, old man, but is actually a Manipulative Bastard.
- Pet the Dog: He calls a doctor to call for Wendy Oldbag when her hip acts up, claiming that the main characters don't know the pain a bad hip can cause. He even seems empathetic about it after he's discarded his pretenses.
- Screw the Rules, I Have Connections!: It's heavily implied that the Allebahstian court system is in his back pocket, thus protecting him from prosecution if he killed anyone within the confines of his embassy. Once it's revealed that Shi-Long Lang has had Alba's Diplomatic Impunity revoked, his future plans seem to rely solely on his underworld connections, as Lang had shown the incriminating evidence to the royal family...meaning Alba could no longer count on the courts being in his favor.
- Screw the Rules, I Have Money!: It isnt made clear exactly whether his confidence that he can get away with anything in Allebahst is because of his influence and/or corrupt connections or if its because hes paying off people to work the system for him but regardless, his smuggling empire more than makes enough dirty money to bankroll his injustice.
- Screw the Rules, I Make Them!: If he retreats back to his homeland, he'll have full diplomatic immunity in Allebahst since he has enough clout to twist the rules there.
- Smug Snake: Even after all his subordinates are either dead or imprisoned, he is still confident that his extraterritorial rights will keep him safe. That is, until Lang has them revoked. And even then, he still claims that they've got nothing on him until Edgeworth can finally secure some evidence to prove that he killed Manny Coachen outside of Allebahst.
- Spikes of Villainy: His hair and beard have more than a few downward spikes.
- Stroke the Beard: He has a habit of this, though the manner changes between his "stances". When posing as a frail old man, he just rubs one bit of his beard between two fingers. When he's standing up-right, he tends to grab the whole beard and run it through his fingers.
- Villain: Exit, Stage Left: Tries really hard to get out of the embassy so he can dodge the ever-tightening noose around his neck, but is cut off at every turn by someone blocking his way.
- Villainous Breakdown: He's knocked backwards by military explosions on his chest, and then slumps forward into his "hunched old man" persona but looking much more decrepit and missing a few teeth.
- Walking Spoiler: His real purpose spoils the entire plotline of AAI.
- You Meddling Kids: His last line before said Breakdown.