Character sheet for Atelier Lydie & Suelle: The Alchemists and the Mysterious Paintings. Note that this page contains unmarked spoilers for Sophie and Firis.
Lydie and Suelle "Sue" Malen
A pair of twins who dream of making their family's downtrodden atelier into "the number one atelier in the country" in spite of their family's poverty and father's horrible work ethic. Their discovery of "mysterious paintings" that allow them to find rare materials they can't in the real world kicks off the plot.
Lydie, the older one, has a softer, milder personality, while Suelle is more outgoing and brash, but in spite of their different personalities, the two of them are tied at the hip and do everything together.
- Action Girl: Although she plays the role of one of the game's protagonists, in terms of battle Suelle actually plays more like a standard party member than the usual Squishy Wizard alchemist (which Lydie takes the role of); although she's not quite as hard-hitting as other party members, her skills do in fact have a reasonable amount of damage and her high speed makes her perfectly viable as a frontliner. In fact, in contrast to all the other alchemists in the party, she's completely incapable of using healing items.
- Always Someone Better: Suelle feels this towards Lydie, as the burden of Lydie's natural prowess at studying and better talent than her at theoretical alchemy gives her an inferiority complex.
- Book Dumb: Suelle has a hard time reading anything above comic book level and is so bad at it that she's borderline illiterate, preferring to leave it all to Lydie.
- Born Lucky: Lydie always wins in games of chance, to the point where even a working potion of luck cannot overcome it.
- Clingy Jealous Girl: Lydie tends to immediately get cold every time Alt accidentally being a Chick Magnet comes up, implying that she might have a crush on him (or, at least, when the game decides it wants to bring it up).
- Cute Bruiser: Most alchemists use some kind of staff or weapon to ambush enemies, and Firis and Lydie would normally use their staves to break rocks or harvest from trees, but Suelle's preferred method is to just kick them. In addition, while most female alchemists in the series have favored using staves as their weapon of choice, Suelle prefers using guns and shooting enemies directly.
- Cuteness Proximity: Ilmeria sometimes trips it when acting especially flustered.
- Deadpan Snarker: Lydie is too nice to be particularly scathing about her criticisms, so she tends to come off as this sometimes. Suelle is more willing to deliver her criticisms upfront, but falls into this often as well.
- Fragile Speedster: Suelle's attacks don't actually do that much damage compared to how much the other members of the party can dish out, but she has high speed and can therefore attack extremely often. This also means that if you put her in the front, whoever's her support partner will be taking a lot of turns.
- Guns Akimbo: Suelle's weapons of choice. She admits she doesn't actually use them for any reason of practicality; she just thought they looked cool after seeing a comic book protagonist use them.
- Hearing Voices: Like previous Mysterious series protagonists, Lydie has the ability to hear the voices of alchemy materials, which allows her to make items as according to her wishes. She's also able to hear the mysterious voice (later revealed to be Honnete's) coming from the paintings. Suelle starts off unable to hear materials, but eventually gains the ability over the course of the game (although she's never seen picking up the ability to hear from paintings).
- Hidden Depths: Suelle usually prefers to go by instinct instead of following a plan, and is not as book-smart as her sister. Despite this, one of the game's endings reveals that she has a surprising amount of business sense, and she becomes the manager of her own very successful shop.
- Magic Staff: Lydie's weapon, the traditional Atelier heroine staff. Uncommonly for an Atelier female protagonist, Suelle notably does not, nor does she even something to whack things with like Logy or the Shallies did, instead preferring to kick or shoot with her guns.
- Multicolored Hair: Pink ending in purple.
- The Nicknamer: Suelle has a habit of calling her and Lydie's alchemy creations by extremely odd names — a trait she apparently got from Honnete.
- Not So Above It All: Despite her generally kinder demeanor, Lydie can be just as scathing as Suelle in her observations — she just delivers it in a nicer manner. In fact, her "kind" demeanor is simply just a demeanor, since she's functionally just as willing to get up to mischief as her sister is.
- Only Known by Their Nickname: Suelle is called "Sue" by nearly everyone else in the game, including even the text boxes.
- Polar Opposite Twins: Come off as this superficially, at least in terms of their dispositions. In practice, both of them are equally as prone to mischief.
- Single-Minded Twins: For the most part their personalities are different enough that they aren't this trope, but it comes into play in terms of the fact that they always do everything together no matter what, to the point where the game allows you to switch between them freely at any time they're playable. This culminates in them sticking together even when they're so mad at each other they're no longer on speaking terms.
- Spell My Name with an "S": Early after the game's initial reveal, the official romanization of Suelle's name was "Soeur". At some point the name was abruptly changed to "Suelle", with even the logo getting a last-minute change. Presumably, Gust realized that naming a character "Sister" may not be the best idea. (That said, the design drafts for her final-tier gun clearly depict a "Sue ♡" depicted on the barrel, suggesting possible miscommunication.)
- Squishy Wizard: As far as battle goes, Lydie plays as the typical staff-wielding Atelier heroine; she dishes out low skill damage and has poor stats (she takes hits even harder than most Atelier protagonists!), but is excellent as a support healer and is the primary backliner to use Battle Mix.
- Stripperiffic: Lydie's outfit only barely covers her front and is held together by strings on the side, exposing far more skin than one would expect for a 14-year-old. Even more jarringly, she's apparently been wearing this outfit since she was much younger.
- Taught by Television: Suelle uses Guns Akimbo mainly because she thinks they look cool in comics.
- Technician vs. Performer: Lydie is the Technician, using formulas and logic while crafting. Sue is the Performer, she just goes with her gut.
- Trauma-Induced Amnesia: Sue has a comical example: she can't handle the fact that Pamela is a ghost so much that she erases the information from her mind.
- Trickster Twins: They're both incredibly mischievous; Suelle is more likely to engage in the hijinks directly, while Lydie cheerfully cooperates.
- Why Did It Have to Be Snakes?: Bugs, for Suelle after Honnete played a prank on her with them in her childhood. She absolutely cannot stand them, and will even comment on it in the field if she's set as the player character and has to collect them or if she has to use them in synthesis. She's likewise also terrified of ghosts, to the point that upon learning that Pamela is one she gets so traumatized she accidentally erases it from her own memory so that she can continue interacting with her like a normal person.
Mathias Ferrier Adalet
A knight of Adalet who proclaims himself to be the twins' guard, who's absolutely atrocious at flirting with and picking up women. In actuality, he's Mireille's brother and the crown prince of Adalet, but happens to work as a knight.
- Badass Normal: He's the only member of the playable party (even after DLC) to not be an alchemist. When he tries doing alchemy himself at one point, the results are so disastrous that Alt tells him that he should just go back to refining his own talents.Not even a glimmer of something we could work with. I mean, absolutely zero potential at all. Nothing.
- The Badass part in combat relates to his survivability, having better health and defenses than every other character, DLC included.
- Baleful Polymorph: Gets subjected to this when Lucia tests medicine on him that temporarily turns him into a Puni.
- Bishie Sparkle: Attempts to turn this on at one point after receiving advice from Alt on how to become more popular with girls. It works about as well as you'd expect.
- Butt-Monkey: When he's on screen, it's almost a given that nothing is going to go in his favor, and the twins certainly don't spare their insults in front of him. For extra humiliation, the player can even have him equip the Puni mask he's wearing in his introduction for the rest of the game.
- Casanova Wannabe: Saying that his flirting attempts go "badly" is a massive understatement.
- Cowardly Lion: Despite being a knight, he's terrified of monsters and will try to back out of a battle if possible, but will gladly help the twins no matter what they end up getting into.
- Crutch Character: In the early stages of the game when there aren't many options for frontliners, his high HP and good defenses make him an effective tank when both twins are up front, as the way defense stand-ins work means that he'll be accepting hits for two characters at once. While he still serves the party well with good area of effect attacks and excellent defenses even into the post game, that is all he remains good for. His offensive with Beast Mode does not come close to matching the power needed for some post game bosses, and while he has access to healing and buffing items, his damage will always remain sub-par, and his speed is not that great either.
- Glass Cannon: His skill Beast Mode makes him into one, trading his defense for significantly higher attack.
- The Heart: He may be relatively inept compared to his sister and a huge klutz, but he legitimately wants to work hard for other people's sake. It's because of this that Mireille considers him to be far more suitable to be a king than she is.
- Made of Iron: The hardest character to kill outright, he serves as a perfect meat shield for the sisters if you put both of them in the front line. His Accel Guard is his fastest skill, which increases defense and restores MP from damage for a while, making him more or less focused on being a tank.
- Precocious Crush: He's far past it now, but apparently he wanted to marry Mireille when he was little, despite the fact she was his sister.
- Royals Who Actually Do Something: He's technically a prince, but he spends his time working as a knight for the twins and takes his job quite seriously. The twins believe otherwise, teasing him for being "unemployed" every time he so much as sits around.
A mysterious young boy about whom almost everything is unknown, who suddenly shows up in Merveille, sets up an atelier, and takes an interest in the mysterious paintings the twins are investigating. Despite coming off as cold and blunt, he's actually quite the nice guy.
- The Atoner: If there was any doubt that Luard/Meklet/Atomina wasn't going to lapse back into his old ways, this game takes it and makes it abundantly clear he's extremely remorseful about his actions, upset about how his friendship with Plachta fell apart, and immediately labels himself as a disappointment and "the worst, most awful alchemist who betrayed and hurt his friends" when the twins ask him about it. It's only when he hears that Plachta's version of the story called him "a very, very important, kind, and reliable friend" that he realizes he needs to stop being stuck in the past and move on, and he eventually manages to reconcile with Plachta and his past with the help of the twins.
- Brutal Honesty: His favorite way of talking to people. He's well aware it can be off-putting, and even seems to enjoy seeing people's shocked reactions, but he does mean well in what he says.
- Can't Catch Up: This was Luard's initial motivation for developing Ablation Alchemy, as he felt that he was falling behind Plachta and couldn't catch up to her. It was only after he got so absorbed in pursuing it that he lost his original purpose and made it into a pursuit For Science!.
- Composite Character: A retroactive one since he's actually their original incarnation, but as this is the first time we actually get to see Luard's personality when he's not busy being the final boss of a game, he's basically an older version of Meklet with elements of Atomina's blunt and aloof nature.
- Chick Magnet: After word of a "handsome young alchemist" having an atelier in Merveille gets out, he ends up getting uncomfortably smothered by women at his atelier for his looks, making it very difficult for him to deal with the giant amount of requests they tend to pile on him when all he wants to do is practice alchemy. After a certain point, he starts hiding in the twins' atelier whenever he's particularly overwhelmed.
- Dark Is Not Evil: His methods of alchemy are dangerous and even "evil" by his own admission, but he's dedicated himself to using it helping the populace. His entire ordeal with coming to terms with his past makes it abundantly clear he has no intention of going back to using it for selfish purposes, like he did as Luard. Fritz comments that if he's using it in that way, it can't be called "evil" alchemy.
- Foreshadowing: You can pick up on the fact that he's actually Luard in a new body if you're perceptive enough:
- When asked what he'll do with alchemy he gives the exact same "Take Over the World" answer as Atomina.
- Upon meeting him for the first time, Firis immediately starts sizing him up and swears she's met him somewhere before. She had, back when he was in the form of Meklet and Atomina.
- Not long after meeting him, Lucia visits his atelier and threatens him to not do anything untoward to Lydie and Suelle. After she leaves, he remarks about how soft she isjust as Meklet and Atomina would often describe Sophie, Plachta and Firis as soft in the prequels.
- After fainting from lack of food, he comments that in the past, his body used to let him function without needing to eat. He's referring to his past as the Artificial Human Meklet and Atomina.
- At one point, Lydie and Suelle dig up the first thing they'd ever made with alchemy (a Uni Bag) and ask him what his was. Alt claims he doesn't remember, and Suelle insists that he's got to be lying. As it turns out, he damn well is, because it's the bottle of fertilizer he made with Plachta, and he considers it to have just as much importance as she does.
- After the twins show off their creation to him, he warns them not to get Drunk with Power, implying that he's had some kind of bad experience with it before. Indeed, getting addicted to the power of Ablation Alchemy was exactly how he ended up having his fallout with Plachta.
- He refuses to intervene when the twins get into a fight, saying that it's not the place of an outsider to do anything about fights between twins, but denies having any twin siblings when asked how he'd know. He's probably referring to his time as Meklet and Atomina.
- When the party first goes to Etel Nepica, Alt says that he might not want to stay there for too long, hinting there's something in his past he doesn't want other people to see — and indeed, we get to see flashbacks for everyone in the party but him. During a later trip, he immediately gets nervous when the twins decide to have Sophie and Firis tag along, and as soon as they enter the painting he splits up the group so that they won't accompany him. This is most certainly because Sophie and Firis potentially bearing witness to his past would immediately out his identity...although it ultimately ends up not mattering as the twins end up putting two and two together anyway.
- His Leitmotif features a riff taken from Liela Xea, the song that plays during Luard's boss battle in Atelier Sophie.
- Evil Laugh: Very fond of doing this, even when he's not actually doing anything bad.
- Forgets to Eat: At one point, he gets so caught up in his alchemy work that he faints from lack of food, and when he does eat he gets by mainly by things like fruits and nuts. Since he'd been spending 500 years in the form of the Artificial Human Meklet and Atomina, he hadn't needed to think about things like that. Lydie is naturally horrified to find out he'd been eating so poorly and resolves to bring him a proper meal.
- For Science!: His main interest is in practicing alchemy for the sake of alchemy itself, to the point he even stops bothering with the alchemy exams after rank B because he doesn't care about the money. He does, however, act in the interest of being far more altruistic than he suggests, unlike in the past when his obsession with it led him to develop Ablation Alchemy at the potential cost of everyone's livelihoods.
- HeelFace Turn: He's the final boss of Atelier Sophie, having given up on Ablation Alchemy and come to Merveille to start a new life.
- I Hate Past Me: When everyone's shown embarrassing memories of their past in Etel Nepica, Alt implies that he's also got things he doesn't want people to see. Sure enough, he's eventually forced to deal with his past as Luard, which he does by literally summoning a copy of his past self and having his party beat it up.
- Inconsistent Dub: He's supposed to be named after the man who was Luard and Plachta's disciple, who was mentioned in Firis as being named "Ald" in the localization, but his name is romanized here as "Alt" (which is a direct copy from the Japanese version).
- Jerk with a Heart of Gold: He isn't exactly the nicest person around and is constantly fond of shoving Brutal Honesty in people's faces, but he's dedicated to helping the townspeople and has Lydie and Suelle's best interests at heart. In fact, when the twins ask Plachta what he was like as Luard, she describes him as "kinder than anyone else".
- Lightning Bruiser: He easily has the highest-damaging skills of any of the available party members, but put him as support behind Suelle and he immediately becomes this — on top of being able to act on her high speed stat, his attacks pierce through elemental resistance, allowing for massive damage at repeated intervals. Subverted a bit in the front lines, where he's as vulnerable as you might think.
- Mad Scientist: Has shades of this; the objects in his atelier include medicine that can turn humans into horses and a bomb that can blow up entire pieces of land in one explosion...
- Musical Spoiler: His Leitmotif is a remixed version of Luard's theme "Scar" from Sophie, so perceptive players may be able to pick his true identity out early.
- Not So Above It All: For all his attempts to seem cool and collected, he's not without his Butt-Monkey moments, to the point where he eventually gives into the temptation of being coddled by Pamela despite identifying as a grown adult who's lived 500 years. As his voice actor comment says, "as soon as you think he's smart, he does something stupid."
- He's one of the most vocal members to support Captain Backen's ridiculous antics, and seems to genuinely think he's cool.
- Promoted to Playable: Makes his debut as a playable party member after having been a major presence in the first two games. As you might expect from the Final Boss of Sophie, he's one of the strongest members of the party.
- Redemption Promotion: In terms of the story, anyway; after defeating his past self, he notes that it was much weaker than he'd expected, because alchemy is the power of dreams — anyone who doesn't understand that would naturally be weak.
- Reformed, but Not Tamed: It's unclear whether he'd been like this even in his youth or if he'd ended up this way after his stint as a villain, but he can come off as this with his penchant for Brutal Honesty and generally suspicious demeanor.
- So Beautiful, It's a Curse: He really doesn't like the overly flirtatious women who come to his atelier just to hit on him.
- Spell Book: His weapon of choice, just like the one he used as Luard.
- Take Over the World: He gives this as his reason for doing alchemy when the twins ask him about it, but doesn't clarify whether he's joking or not. Knowing that Meklet and Atomina also made this joke in Sophie's extra scenario, and given what we find out about his feelings about his past later in the game, he very probably was.
- Terrible Artist: Apparently. He actually has a bit of a complex over it after Plachta made fun of him for it.
- Vague Age: His age is given as simply "???" in official materials, and he's only called a "boy" or "young man" by those around him. It's still unclear how old his current body is supposed to be, but he's been living longer than 500 years.
- Walking Spoiler: Pretty much everything about him is shrouded in mystery, and given his suspicious behavior, it stands to reason that effectively any revelation about him is a spoiler.
- White Hair, Black Heart: Falls right into the archetype; in addition to his darker personality, he's described directly as Bishōnen in the game to the point it makes him uncomfortably popular with the ladies. It's unclear whether his current body resembles his original one to any degree, but it turns out he'd had white hair even back then; considering that Plachta and Kald (the descendant of the original Alt, whom he's said to greatly resemble) also have it, it might simply be a trait endemic to their childhood village.
The protagonist of the previous game, who's still continuing her travels around the world as an alchemist. She's also matured quite greatly in the last four years, and has come to work extremely well with Ilmeria.
- Big Eater: She's capable of chowing down large amounts of meat, and food tends to be the first thing on her mind during outings.
- Bonus Boss: You can rematch her at any time at the end of the game.
- Character Development: And how; compared to all the other characters returning from previous games, Firis is the most drastically matured, having become a dependable and mature lady — very different from the immature young girl she was in her home game.
- Chuunibyou: She sometimes adopts Revy's overly dramatic speech pattern to sound cool.
- Genki Girl: She's dropped a number of her more immature qualities that she had as a young teenager in her home game, but none of the natural cheerfulness; she enjoys making up a cheerful song on the spot for every area the party visits.
- Improbable Use of a Weapon: Hagel lampshades it after he hears how it fires rocks and flamesRocks? That's not a bow! That's a catapult!
- Jack-of-All-Stats: Or utilities, in any case; while most party members do noticeably better in either the frontline or support roles, Firis can function well in either, as she does reasonable damage with her attacks and also has excellent support skills.
- Jack-of-All-Trades: Having traveled with a large, diverse cast in her home game, she's not just a master alchemist; she's also proficient in hunting, archaeology and puppet theatre. After a certain point, Lydie and Suelle begin to wonder if there's anything she can't do.
- Mage Marksman: She's picked up archery from Liane, but unlike Liane's (comparatively) conventional arrows, her arrows are alchemy-imbued and cause large elemental explosions. (In accordance with this, she notably aims with somewhat less precision than Liane does; she comments that without the aid of alchemy she probably would be able to hit one in a hundred at most.)
- Skippable Boss: Since the twins only need three recommendation letters, it's possible to get them only from Sophie, Ilmeria, and Roger, meaning that you technically don't need to fight her to advance the story. However, skipping her recommendation letter challenge means missing out on a trophy.
- Walking the Earth: She's so addicted to traveling that she has a hard time staying in one place, which ends up hindering her progress in the Atelier Ranks. It's also the reason her plans to set up an atelier with Ilmeria fell through, as Il felt she was holding Firis back by tying her down to one place.
- Warp Whistle: She ends up crafting one for Ilmeria, allowing them to visit each other even when Firis is out journeying.
The protagonist of Atelier Sophie, a master alchemist who's still on a journey to find a way to restore her friend and teacher, Plachta, to human form. Having become even more proficient in alchemy over the years, she's well on her way to surpassing Plachta in skill...
- Big Damn Heroes: Her way of entering the plot is basically this, as she saves the party from Falgior and would quite likely have been able to defeat him had he not fled.
- Bonus Boss: The 1.03 update added her as a boss you can battle anytime at the end of the game. True to her story presence, she's Level 100 and very hard to defeat.
- But for Me, It Was Tuesday: Handwaves things like time travel as just things she happens to be looking into.
- When the twins ask her for a recommendation letter, her challenge for them is to make a Philosopher's Stone. You know, one of the final recipes of Sophie and Firis, and generally considered to be one of the ultimate goals of all alchemists? Yeah, just a little challenge.
- Legendary in the Sequel: Although not quite legendary to those around her, Sophie is now so strong she can nearly take down a god (or, at least, an extremely strong, nearly invincible demon) in one hit. She also manages to create a new human body for Plachta, something that had been considered unattainable up to this point, and is implied to basically be able to do whatever she pleases with time and space if she puts her mind to it.
- As with in Firis, Firis very obviously still considers her in the utmost highest esteem, as she's utterly thrilled to see her when she saves the party from Falgior.
- Surpassed the Teacher: She's officially considered to have surpassed Plachta when she succeeds in giving Plachta a human body.
The twins' childhood friend, who runs her prestigious family's shop Atelier Borthayre. While known for being a "flower outside everyone's reach" to the townspeople, she's far more ambitious than that might suggest — but she also is legitimately kind-hearted, and really wants to be friends with the twins.
While initially not playable in the original game, she was later added as DLC.
- Butt-Monkey: Her attempts to be a respectable and clever lady in front of the twins often end up in this, most illustrated when she ends up the victim of being frozen in a chunk of ice by an ice dragon and has to be extracted by the rest of the party.
- Demoted to Extra: Inverted; she has nearly the prominence of a playable character, showing up in almost all the painting events and playing a large role in the twins' story, but, prior to DLC, wasn't actually playable.
- Heroic BSoD: Momentarily shuts down completely when the twins ask her about her dreams in life — apparently she'd been so focused on inheriting the family atelier she'd completely forgotten to even consider any personal goals. Eventually, she decides that kind of goal is good enough for her.
- Large Ham: Easily one of the most dramatic in the way she talks to others.
- Luke, I Am Your Father: She's the twins' cousin, as her father is Roger's brother. When the twins learn about this, she's shocked that they were unaware this entire time.
- Noblewoman's Laugh: She does this a lot, sometimes so forcefully that it sends her into a coughing fit.
- Pining After Protagonist's Parent: Roger was actually her first crush, though she's grown out of it by now.
- Prone to Tears: Apparently she'd been quite the crybaby in her childhood — something the twins are quick to tease her about when reminded about this in Etel Nepica.
- The Rival: Effectively serves as one to the twins, since she's also trying to get her atelier up in the ranks.
- Tsundere: All of her "ambitions" aside, she legitimately wants to be friends with the twins — she just puts up a front of being high and mighty. Suelle eventually gets to read her workbook, and finds a bunch of notes involving her genuinely wanting to take time out her busy schedule to go play with the twins.
- She's actually much more of a workaholic than she lets on, as she's simultaneously succumbing to the pressure of being the heir to Atelier Borthayre and her self-imposed need to be a "role model" for her younger cousins. Her arc eventually boils down to the twins convincing her that it's okay for her to rely on them in return if she needs it.
- Vitriolic Best Buds: It's a wonder she continues to care about the twins so much, given how much they bully and prank each other.
Ilmeria "Il" von Leinweber
A returning character from Firis, the twins' official alchemy teacher, and Firis's friend. She's mellowed out significantly since the last game, being generally very kind and sweet and supportive of the twins in their endeavors.
While initially not playable in the original game, she was later added as DLC.
- Demoted to Extra: She was one of the more prominent party members in Firis, but while her role is still fairly significant here, she doesn't factor into the plot quite as much and, outside of DLC, isn't playable.
- It Was a Gift: Her atelier is filled with cute plush toys, which she insists were all gifts from other people, though the twins suss out the truth pretty quickly.
- I Will Wait for You: She promises to wait for Firis to return so they can open their atelier together.
- Shining Goodness: The moment she introduces herself to the twins, her radiant confidence is described as being so "shining" that it makes the twins faint.
- Took a Level in Kindness: In the previous game, Il was effectively an Expy of Mimi, being a high-class Tsundere rival to the main character. By the time of this game, however, she's dropped much of the arrogance and considerably mellowed out to the point she's less "tsundere" and more just straight-up "dere". This ends up serving the twins well when they end up apprenticed to her, because she's now in the position to be a fully supportive mentor to them.
- Tsundere: Not actually in most cases, since she's now become more of an adult and is a lot more honest in dealing with people, but she stubbornly refuses to admit she has a soft spot for cute things because it goes against her desired image of an adult. This despite the growing and growing pile of plushies inside her room...
- She also still turns into one in regards to Firis.
The twins' father, a Mad Scientist who's constantly flaking off on the atelier duties, forcing the twins to take matters into their own hands in order to run it like a proper business.
- Crouching Moron, Hidden Badass: He's actually a licensed alchemist, and in his youth was far more motivated to make a name for himself and bring his family to prosperity. Honnete's death broke him, but once the twins start motivating him to shape up, he stages a takeover of Atelier Borthayre.
- Genius Ditz: Roger can make some pretty incredible things when the urge strikes him and is even a licensed alchemist, but his house wouldn't even be able to eat if the girls weren't always cleaning up after him.
- Mad Scientist: He has an awful work ethic and constantly flakes off his duties in running the atelier, but he has a penchant for experimenting and making things explode. Over the course of the game he has the twins assist him in his bizarre experiments, including a tree that produces coll (but drinks in more money that it gives), a potion that grows the drinker to giant size and last but definitely not least, a bomb that could split the planet in half.
- Multicolored Hair: Green ending in purple.
- My Greatest Failure: He considers his failure to save Honnete this, to the point he wasn't able to commit himself to doing alchemy afterwards.
- The Promise: He made a number of these to Honnete long before her death — that he'd make the family atelier the best in the country (a promise that the twins eventually take on), that he'd make Honnete happy, and that he'd take them on a journey as a family around the painting worlds. Although he believes he's failed in all of these by the time of Honnete's death, the twins help him make do on them.
- Tragic Keepsake: He began painting what would become the Heavenly Flower Garden as a gift to Honette, but continued working on it as a tribute to her after her death. As it eventually turned out, this painting would be far more than just a tribute...
The twins' late mother, who passed away from illness prior to the start of the game, and a kind woman who put her family before all else. The twins' promise to make their atelier "the number one in the country" is their major motivation behind doing so.
- Action Girl: She's no alchemist, but she's the one who taught Suelle to shoot guns, and has been wandering the painting worlds protecting herself with them. It's also worth noting that she was a traveler of paintings even when pregnant with twins.
- Art Initiates Life: Traveling with Roger into Mysterious Pantings allowed her spirit to remain in them even after her death. The twins eventually manage to solidify her form and bring her out into the real world as if she'd never died.
- Deceased Parents Are the Best: Honnete was kind, loving, important to her family, and is basically portrayed as Too Good for This Sinful Earth in flashbacks. Subverted when we finally get to meet her in the painting world. She's definitely no angel, although she is still a kind and loving woman — it's just that Suelle has undoubtedly gotten her petulance from somewhere...
- Ill Girl: Died prior to the events of the game due to her weak constitution.
- The Promise: It's the promise with her to make the family atelier the "best in the country" that fuels the twins' motivation to do so. Roger had also made a number of similar ones to her in the past, and his perceived failure to protect them is what caused his Heroic BSoD.
- Shared Family Quirks: While Lydie is marveling at Suelle's questionable naming sense for alchemy items, Roger treats the audience to a flashback where Honnete had also given Roger's creations a number of unusual names, including calling a Craft a "Uni Buster". Cut to Lydie presenting Suelle a Craft, and Suelle immediately naming it a "Uni Buster"...
- Your Days Are Numbered: Even though her spirit is being preserved in the painting, her existence is unstable and she's eventually going to disappear. Achieving the true ending allows the twins to successfully prevent this.
Mireille Ferrier Adalet
Mathias's sister, the princess of the Adalet Kingdom, who works at a receptionist at the castle and gives the twins their exams for their Atelier Ranks.
- Almighty Janitor: She doesn't exactly make a big show of her true position in the country, running it simply like a mere receptionist.
- Drunk Personality Change: Her royal demeanor completely flips upside-down when she gets drunk.
- Gilded Cage: She wasn't allowed outside of the castle as a child, so now that she's an adult she's developed a desire to see what it's like outside.
- I Want My Beloved to Be Happy: A non-romantic version. When Mathias was little he'd naively expressed a desire to marry her, and given that she wanted to make him happy but obviously couldn't do so in that way, she decided that she'd cede the position of Adalet's ruler to him so that he could be a great king who could make the country happy.
- The Man Behind the Man: She agrees to be the real ruler of Adalet while Mathias sits on the throne.
- Not So Above It All: Most of the time she acts like you'd expect a princess to, but once in a while signs of a more vulgar personality break out, especially when she's in private with her brother.
- Pungeon Master: She puts effort into thinking up awful puns, some of which she even admits herself are groaners. Lydie and Sue try not to react if possible, so as to try not to encourage her.
- Royals Who Actually Do Something: Spends her time at a desk job despite her position as a princess.
- Spoiled Sweet: She has remarkably little idea what life outside the castle entails, as her perception of a "homestay" sounds more like a master-servant relationship and she ends up asking the twins to make fancy silverware to make her feel more comfortable as she makes preparations to live outside.
Sophie's friend and alchemy teacher, who accompanies her in her travels. Although she was once a gifted alchemist, she's currently in an artificial body, and Sophie's goal is to find a way to finally restore her to human form.
- Demoted to Extra: After featuring as the secondary protagonist in Sophie and being playable in the last two games, she shows up only as an NPC whose events are largely tied to Sophie (although she has a more prominent role in Lydie and Suelle's story than Liane, who receives similar treatment).
- Humanity Ensues: It's apparently not easy readjusting to a human body after having been stuck in a doll body for too long, as she finds out the hard way; soon after becoming human again, she has to deal with problems such as motor skills and the fact that overeating will make her gain weight.
- I Want My Beloved to Be Happy: She offers to part ways with Sophie so that Sophie can find her own happiness. Sophie is unimpressed. It's only when they both admit that they are each other's happiness that they make up.
- The Mind Is a Plaything of the Body: Plachta's manner of speaking and personality get slightly (only slightly) more mature and ladylike once she gains a human body and isn't trapped in a doll body resembling a 16-year-old.
- Older Than They Look: When she first sealed herself into a book 500 years ago, she was likely somewhere in her thirties, but is currently in the form of a doll that resembles a 16-year-old girl. The human body that Sophie gives her looks somewhat older, but is still definitely younger than 30.
- Pinocchio Syndrome: She's in an artificial doll body, patiently awaiting the day Sophie can restore her to human form. She eventually does.
- Really 700 Years Old: She's an alchemist from 500 years ago who spent much of that time dormant in a book before being awakened eight years prior by Sophie. The twins immediately take to calling her an old woman as soon as they discover this.
- Surpassed the Teacher: Sophie getting Plachta a human body marks the point when she officially surpasses Plachta in alchemic skill. While Plachta maintains that she's surprisingly much happier about this than she would have been in her more competitive youth, she initially worries that she'll be holding Sophie back if she stays with her before Sophie reassures her that she still wants her around as a friend.
- Stripperiffic: Her second outfit (the one for her new human form) has what's effectively a loincloth over her underwear. Despite this, it still covers up more skin than her previous one!
Firis's older sister, who supports her atelier financially via her hunting spoils. Her affection towards her sister only seems to have gone up...
- Cuteness Proximity: This is basically her reaction to anything regarding Firis, to the point where even mentioning her will cause her to immediately gush over Firis's cuteness. Late in the game, she ends up having a face-off with Honnete where they compare how cute they find their sister/daughters to be.
- Demoted to Extra: Despite being considered the secondary protagonist of Firis, she has a comparatively smaller role in this game, with her playable status removed and her events largely revolving only around Firis.
- Does This Remind You of Anything?: Liane ends up demanding Fritz's Firis doll for an unspecified but exorbitant amount of money. Given her very obvious sister complex towards Firis, one can only imagine what she wants to do with that doll...
- Flanderization: In Atelier Firis, her defining traits were her love and protectiveness for her sister, her aptitude for housework, and her skill as a hunter. In this game, her love for Firis has grown to the point where it overshadows all of these other aspects; it's hard to find a Liane moment where she's not gushing about how cute Firis is and how much she loves her.
- Hidden Depths: For all her siscon tendencies, at one point she admits that the person she calls "the most important person in [her] life" is actually not Firis; it's implied that she's found out who her biological father is (likely Norbert, given the events of Firis), and advises the twins to appreciate their own father as well.
- My Beloved Smother: Unlike in the previous game, Firis is abundantly aware of the unusual level of Liane's affection for her and finds it extremely embarrassing, to the point where she's capable of using "if you don't stop, I won't come to see you for the rest of today" as blackmail against her.
A nun who works at the local church, who is actually in her fifties despite looking like she's in middle age. As the one in charge of holding church gatherings, she seems to have an odd fascination with the "entertainer" aspect of it...
- The Atoner: She's currently upset over something in her past, which she says ended up putting someone into despair. She's referring to the fact she walked out on the Weissberg family without considering how it'd make her husband and daughter feel.
- Deadpan Snarker: She's extremely good at taking thinly veiled potshots at almost everyone she's talking about.
- Luke, I Am Your Father: She's the missing member of the Weissberg family. The game makes this very clear at the beginning by dropping her surname in her introduction, but the halves of the family don't know where the other is until very late in the game...
- Older Than They Look: She's in her mid-fifties despite her youthful looks (to the point Mathias tries to hit on her and gets a nasty surprise when he discovers the truth). She's old enough to be Drossel's mother, in any case.
The nun from Sophie's town in Kirchen Bell, who got lost on a carriage to Merveille and now needs to gather the funds to get home. She retains the same cheery outlook as ever.
- Aura Vision: Of a sort; it's not explained exactly how she sees them, but she's able to sense Meklet and Atomina's presence in Alt, commenting that "it feels like they're both here, but they're also not".
- Cute Ghost Girl: Pamela casually drops the fact that she is a ghost, and gets a kick out of Sue's reactions.
- Remembered I Could Fly: Only after saving up enough money to get home does she remember that, as a ghost, she could have simply flown home at any time. She decides to use the money to buy gifts for people.
A girl who specializes in duplication alchemy, who's grown her shop into the "Corneria Company". Her goal is to find her father, whom she'd never met, and she hopes that getting her shop famous enough will get him to take notice and find her. Since her powers still subtract from her height, she hasn't gotten any taller from her appearance in Sophie.
- Adam Smith Hates Your Guts: If you're having financial problems in the later parts of the game, chances are Corneria's the main cause of them; the higher the quality of the item goes, the more she charges, and unlike in Sophie, refills aren't free. This is to the point where a max-quality N/A spirals completely into "impractical" tier for a player, because while the item itself may be potent, the sheer cost of maintaining it is prohibitive.
- Disappeared Dad: Finding him remains her motivation from Sophie. She pulls it off at the end of the game.
- Make My Monster Grow: Ends up victim to an experimental medicine made by Roger that makes her grow so big she blows a hole in the atelier's roof. Lydie and Suelle eventually have to pass off the incident as having been All Just a Dream.
- Older Than They Look: Late in the game, she goes drinking with Sophie, where the bartender refuses to serve her alcohol due to her childlike appearancedespite being in her mid-twenties.
Fritz and Drossel Weissberg
A father and daughter pair of puppet show performers, who are in search of Fritz's wife (and Drossel's mother).
- But Now I Must Go: After getting the family back together, Drossel decides to depart on a journey to make the best puppet show in the world, leaving her parents behind as Grace isn't quite comfortable with leaving behind her role as a nun in Merveille.
- I Should Write a Book About This: The "ultimate puppet show" that they put on is effectively a recap of the three Mysterious games, up to and including this very one.
- Missing Mom: Their goal is to find Grace, who walked out on the family when she got fed up with their obsession with puppets. As it turns out, she's much closer than they think...
- No Sense of Direction: Drossel's infamous penchant for getting lost makes a return, as she actually walks through a house while looking for Fritz. She does, however, manage to pull it together when successfully locating the village Corneria's father hails from.
The legacy Atelier series blacksmith, making his first appearance in the Mysterious series — and as bald as ever.
A great alchemist who was considered to be the first to create a Mysterious Painting, and appears in her own painting as a small girl. Her general disinterest in the matters of the real world provide difficulty when the twins need to consult her on how to defeat Falgior...
- Growing Up Sucks: After feeling betrayed by everyone around her in life, she decided to seclude herself in her painting and stay in the form of a child forever.
- I Just Want to Have Friends: Her true feelings, which she initially refuses to admit.
- Older Than They Look: She grew fully to adulthood in life, but takes on the form of a child while in the painting.
- Portal Picture: Known as the first alchemist to create a Mysterious Painting, which allows people to enter them. It's her paints that the twins end up using to restore the paintings they find.
- Really 700 Years Old: She's an alchemist from 300 years prior, whose spirit lingered in one of her paintings after her death.
A curious young girl who lives in Great Enfer Falls, who has wings sprouting from her back.
- Artificial Human: She and the others of her kind are native to the painting world, making them homunculi of a sort.
- The Beastmaster: At the end of the game, the party discovers that the Fire Dragon's returned to the village and is rampaging...because he has a thing for Fuoco. Though initially perturbed, she eventually takes on this role with him to help him relieve this stress, which also accordingly changes his monster entry from "Fran Pfeil" to "Fuoco's Fire Dragon".
- Ditto Aliens: Her village is populated entirely by girls who look exactly like her, and have similar names.
A pirate who, despite his Ghost Pirate state, continues to cheerfully go along his business as a pirate.
- Creepy Good: He's reduced to nothing but bone, but he's a very nice person overall.
- Dem Bones: A skeletal pirate.
- Ghost Pirate: More of a skeleton than a ghost, but he's definitely a pirate.
- Large Ham: Between his gruff laugh and his habit of screaming his own name, the guy's probably the hammiest member of the cast.
- Not Quite Dead: Despite his dramatic farewell complete with fading into light, the good captain is actually fine and shows up again when you visit his painting again later.
- What Happened to the Mouse?: He refers to Lydie and Suelle as "Minion C and Minion D", which prompts Lucia to ask whatever happened to Minion A and Minion B. As it turns out, Roger and Honette were the original Minion A and Minion B, having visited his painting before the arrival of Lydie and Suelle.