Picked up as an orphan by an Alchemist at a young age, she became a host for the dark Alchemists curse. Although the magi-crystals were fused with her body at a young age, for 10 years she lay sleeping while the curse matured to its full form. It was during this period that the demons arrived, meaning that she missed their appearance and awoke with a mild form of amnesia, not quite fully understanding what happened to her.
She is a woman of few words but strong of purpose. Her youth is deceiving, making her seem confrontational and quick to judge, though in reality she is constantly evaluating her next step. The pain she felt as an orphaned child fuels her compassionate desire to protect her loved ones and friends.
She's also one of the recruitable playable characters in Curse of the Moon.
- Action Girl: She's the protagonist of a Castlevania Spiritual Successor.
- Aloof Dark-Haired Girl: Downplayed. Miriam has shades of blonde hair and seems aloof at first, but she's more approachable and friendlier than most examples and has a bit of a plucky side, such as the cute pose she strikes when she cooks a meal.
- Amnesiac Hero: During her ten-year nap, she missed the arrival of the demons. As a result, she has a minor case of amnesia and cannot completely comprehend what has become of her.
- Ascended Meme: Miriam can utilize a special called Winestained, where she tosses a wine glass a la Dracula. This special increases the effectiveness of certain abilities.
- Bad Powers, Good People: This is apparently her stance, if her scolding on Gebel is any indication.Miriam: You TOLD ME: Our power doesn't make us good or bad. Our choices do.
- Body Horror:
- A mild example; the markings on Miriam aren't tattoos, they're patches of her skin crystallizing. It doesn't look as disturbing as Gebel's case due to them being smaller and resembling roses in various states of blooming. The one on her back even extends outward from her body.
- Concept art of the actual game, conversely, plays this straight, as it depicts Miriam's body crystallizing from rose-esque blue to an eerie stained glass-esque red a la Gebel, in what appears to be access to a Superpowered Evil Side.
- Color-Coded Characters: Her primary color is a light, crystal blue, but the patch of crystal skin on her back is a red rose.
- Cool Chair: Her Magical Throne special, where she summons a cozy chair to relax in. While she sits on it, her MP regenerates faster.
- Cool Sword: Her other primary weapon, as depicted in her concept art.
- Drop the Hammer: Seen wielding one in concept art.
- Every Girl Is Cuter with Hair Decs: An odd example. Miriam wears a strange circlet that makes her look like she has horns. It's her favorite.
- Miriam bears more than a passing resemblance in both story and appearance to Shanoa. She even utilizes most of her skills by using the giant rose-like crystal patch on her back.
- In Curse of the Moon, Miriam is the game's Belmont-analogue thanks to her whip as well as several of her subweapons being similar to Castlevania classics.
- The Corruption: Though Johannes' efforts keep her from fully suffering the curse, he says there's no guarantee that it'll hold if she absorbs more crystal shards. Oh, and guess what you gain more powers and attacks from?
- Fashionable Asymmetry: Has a regular sleeved right arm opposite a detached sleeve on her left.
- Feminine Women Can Cook: There's a cooking mechanic she can perform at Johannes' lab. She gets a stat boost for each unique food she consumes, which is justified by them being malnourished due to low supplies.
- Fighting Your Friend: She and Gebel used to be friends.
- Flower Motifs: Roses, which also serves as the game's prevalent motif.
- Hair of Gold, Heart of Gold: She was a blonde before the curse changed her hair colour. The only remnant of her old hair color are the ends, and even that has dulled down to a dark blonde. Despite what she's gone through, she's also very friendly, understanding, and more than willing to help those in need.
- The Hero: She's the main character, and the plot deals with her facing down Gebel. Additionally, in Curse of the Moon, she takes up the hero mantle once more in the Nightmare Mode after Zangetsu became corrupted, as she ends up being the only character controlled by the player during the final battle against Zangetsu.
- Impossibly-Low Neckline: One has to wonder how she keeps the top half of her dress from falling down.
- Katanas Are Just Better: She even has elaborate animations for re-sheathing them after she swings.
- Kick Chick: While unarmed or wearing a "Shoes"-type weapon, she can perform martial arts kicks as a method of attack.
- Lag Cancel: She can cancel her attack animations with her backdash.
- Literal Change of Heart: Of the transforming sort; part of her heart is also affected by the magi-crystal curse, which is causing it to crystallize as her skin is.
- Modesty Shorts: Certain attacks, such as the Katana's swing, enable you to see under Miriam's skirt, which reveals that she wears these.
- Ms. Fanservice: A Stripperiffic backless dress, pretty large bust, an Impossibly-Low Neckline, and luscious black hair all make her very attractive and very much designed to appeal to fanboys.
- Multicolored Hair: Black, with the ends being either a light brown or dark blonde.
- Multi-Melee Master: If all the other tropes didn't tip you off, Miriam is skilled with a wide variety of weapons, including swords, whips, maces, knives, and spears.
- Nice Hat: Miriam can get a number of different hats in the game to wear, from a classy tricorne to fur hats to bunny ears.
- Plague Doctor: She can dress like one.
- Power Glows: In-game, the giant crystal on her back exudes a blue aura. This translates into a trail of light that follows Miriam as she walks around.
- Raven Hair, Ivory Skin: Miriam sports this look, though she was blonde before becoming afflicted with the magi-crystal curse.
- Sexy Backless Outfit: One that reveals a giant red-and-blue rose-esque crystal on her back.
- She's Got Legs: Her outfit shows off her nice legs. And quite fittingly since she's also a Kick Chick.
- Shock and Awe: Voltic Chain, which causes chains to lash out across the screen before shocking targets. Unlike all of her other abilities, this is a special "Seventh" ability known only by Azure Strikers.
- Summon Magic: Miriam has an entire set of skills dedicated to the summoning of various familiars to follow her around, in addition to much more short-term summons for attacks.
- Sword and Gun: Miriam is as fond of being a Multi-Melee Master as any IGAvania protagonist, but she can also use guns.
- Traumatic Superpower Awakening: Implied. When Miriam absorbs a shard in the E3 2018 demo, she has this to say.Miriam: "I'd...forgotten the way it felt... Like uninvited claws scraping across my bones...
- Whip It Good: Wouldn't be a Castlevania descendant without one. It's also her main weapon in the spinoff game Curse of the Moon.
- Whip Sword: Just in case you couldn't decide between a Cool Sword or wanting to Whip It Good, one of the strongest weapons Miriam can find is one of these.
- Woman in White: In her "Pure" costume.
- Zettai Ryouiki: Miriam's fondness for combining skirts with boots leads to this trope in more than one of her outfits.
Original host for the magi-crystal curse that summons demons to the planet. Gebel (JEE-bill) was the only one to survive its effects at such a high level. He destroyed the guild that created him, but in doing so, realized he was no longer human and had no place on Earth. This, in turn, led him to summon the demon castle from hell to appear on the planet.
It is said that his real purpose in summoning the castle was to give Miriam a place of her own, but as his Magi-crystal disease progressed, he soon forgot his own reasoning. The more he surrounded himself with hell-spawn, the quicker the magi-crystals engulfed his body. He continues to plot the downfall of man, and how to best convince (or use) Miriam to achieve his dark ambition.
Gebel is also one of the recruitable playable characters in Curse of the Moon.
- Adaptational Heroism: He's the main antagonist of Ritual of the Night, but is firmly one of the heroes of Curse of the Moon. Ultimately inverted, as it turns out not to be so "adaptational" after all. His true nature is staunchly paragon.
- Anti-Air: His basic attack in Curse of the Moon is an upward-angled Spread Shot, making him exceptionally good at dealing with enemies hovering above him. The downside, of course, is that he is lousy at dealing with low-lying enemies.
- Big Bad: The nemesis of Bloodstained, who summoned a hell castle and wants to destroy humanity.
- Body Horror: His body is more crystal than skin. According to IGA, one of the few parts of him not crystallized is his heart.
- Color-Coded Characters: Takes on reddish-violet as the villain of the story.
- The Dark Side Will Make You Forget: He has forgotten any good intentions he once had for Miriam when summoning the demon castle. Given that his corruption had progressed to a near-terminal stage and that Gremory was toying with his plague-addled mind at her leisure, he didn't rightly invoke the dark side in question of his own, either.
- Expy: His role in this game is quite similar to that of Dracula, though appearance-wise, he looks more like Alucard. He also plays like Alucard's Castlevania III appearance in Curse of the Moon, in particular being able to shapeshift into a bat. He also has some similarities to Richter Belmont from Symphony of the Night, namely being a heroic character who was turned evil by an outside source and a Disc-One Final Boss. Killing him also nets you the Bad Ending just like what would happen if you killed Richter.
- Evil Cannot Comprehend Good: It's unknown to what extent it's played, but it seems that being reminded of some of the good things about humanity and his past causes him pain. Somewhat subverted when, at the end of his conversation with Miriam, he mentions that if she gets through his castle, absorbing shards, and is still capable of calling herself human, he's willing to listen to what Miriam has to say.
- Face Death with Dignity: In the bad ending, as he dies he assures Miriam that she made the right choice and thanks her for stopping him.
- FaceHeel Turn: He was once a Hope Bringer to Miriam, showing her that she still had her humanity when she crossed the Despair Event Horizon. Now the tables are turned, and he's the despairing villain to her hopeful hero.
- Fighting Your Friend: He, Johannes, and Miriam used to be friends. His initial intention upon summoning his demonic castle was to give Miriam a place to belong, but when his magi-crystal curse got worse, he forgot why he summoned the castle.
- Four Eyes, Zero Soul: Before the curse changed his physical appearance, he used to wear glasses.
- Humanoid Abomination: Due to the Alchemists' curse, Gebel has basically become more crystal than human. He plans to plunge the world into chaos using demons summoned from hell.
- Humans Are Bastards: Believes in this after what the Alchemists did.
- Mask of Power: He wears a golden mask over the right half of his face, which has, at this point, completely crystallized.
- Sleeves Are for Wimps: When he's not fully wearing his cape, he's got a vest that doesn't close.
- Unwitting Pawn: He is actually this to Gremory, who intends to use him to call forth Bael the Demon King to the human world.
- Walking Shirtless Scene: He doesn't actually wear a shirt. His vest remains open, exposing the center of his chest. It's somewhat difficult to notice this because his chest also happens to be completely crystal.
- We Can Rule Together: He offers this to Miriam in the E3 2018 Demo, in part because they're the only ones who can understand each other.
- Woobie, Destroyer of Worlds: He seems to have this lined up for him. Part of his modus operandi, besides bringing the castle so Miriam would have a place to stay, also involves taking revenge upon humanity. It's also in no small part mentioned that the process of getting the crystal curse is painful and he even seems to be in pain when remembering the past.
A member of the defunct Alchemist guild and Gebels best friend. Johannes (yo-HAH-nis) was the only Alchemist who dissented with the plan to call demons to the earth to cement Alchemy as the prevalent philosophy. His rejection of the other Alchemists' scheme is what kept him from sharing their fate. He has a vague understanding that Miriams awakening and the demon castles appearance are no mere coincidence.
- The Atoner: He has shades of this from the E3 2018 demo, apologizing to Miriam for what the Alchemist's Guild subjected Miriam and Gebel to. Even when Miriam says he's not to blame and that he's taken care of her and Gebel, he responds that he didn't do enough.
- Color-Coded Characters: Green is his color theme.
- Defector from Decadence: Was once a member of the Alchemist guild that created the magi-crystal curse, but left when they decided to summon demons from hell.
- Megane: A handsome fellow who sports a pair of glasses, and he's also protective and supportive of Miriam.
- We Used to Be Friends: Towards Gebel when Miriam and him talk about who should take him down.
- Whip It Good: He wields a whip as a sidearm.
A samurai-turned-demon hunter of 43 years hailing from a small country in the East. When the demons appeared ten years prior to the beginning of the story, he traveled to England to face a new threat, armed with his two katanas and the magical power of the ofuda. A decade of waging war against the hellspawn have not only cost him his left eye and right arm, but also many dear friends, spurring his hatred towards not only the demons, but also to the Alchemists who brought the demons to Earth.
Zangetsu is also the main protagonist of Curse of the Moon.
- Artificial Limbs: A rather unique take. He sports a wooden prosthetic right arm, and uses a special ofuda spell to animate it to nearly the same level of mobility he had with his original arm.
- Aura Vision: Courtesy of his eyepatch.
- Awesome Mc Coolname: His name literally means "cutting moon."
- Badass Beard: A neatly trimmed goatee.
- Covered in Scars: Has quite the collection.
- Demon Slaying: Ever since they arrived on Earth.
- The Dreaded: Gremory wants nothing to do with this man, spending the game's near-entirety doing her best to avoid any direct contact.
- Eyepatch of Power: Uses an ofuda as one in order to see the auras of the dead and the living.
- Expy: He looks a lot like Gabriel Belmont from the Lords of Shadow series, if Gabriel were Japanese. He also shares Gabriel's fate as a Fallen Hero in Curse of the Moon, where he undergoes a FaceHeel Turn and becomes the very thing he swore to destroy. Gameplay-wise, he serves as an analogue to the various Belmonts who served as secondary playable characters throughout the IGAvanias, allowing players to experience the game differently.
- Guttural Growler: His voice is literally that of Solid Snake.
- Handicapped Badass: He's missing an eye and has a prosthetic arm, but it doesn't slow him down in the least.
- Hero of Another Story: He is the main character in Curse of the Moon.
- Iaijutsu Practitioner: His standard attack in Curse of the Moon is to quickly draw, attack, and re-sheathe his katana in one motion.
- An Ice Person: One development update shows him as a boss who uses a few ice attacks.
- Katanas Are Just Better: If one weren't enough, he's got two!
- Magic Knight: He combines his mastery of dual-katana combat with the power of ofuda paper incantations.
- Parrying Bullets: He can deflect bullets using his katana, even when not actively being on guard.
- Playing with Fire: Another gameplay demo shows him as a boss who uses flame-based attacks as well.
- Red Right Hand: He has a prosthetic arm covered in ofuda in order to animate it.
- Take Up My Sword: Literal example. When it becomes clear he can't rightly settle affairs on his own, and that Gremory's just going to keep running away from him until it's too late, he passes his blade onto Miriam trusting she'd be able to actually make use of it.
- Teleport Spam: When fought as a boss, he has an Akuma-esque teleport that he is quite fond of using.
- Uncertain Doom: After giving his sword to Miriam, Zangetsu finally finds Gremory and traps her so Miriam can finish her off, but he ends up caught in one of Gremory's spells that seemingly sends him through a portal to Hell. He is not seen again after this.
- Wake-Up Call Boss: He's one of the first bosses you face, and he's very powerful for how early you fight him. He's capable of countering your attacks, strikes very quickly, and can take out huge chunks of your life with each hit. And then he sets his sword on fire to do even more damage.
- Walking Shirtless Scene: Doesn't wear his right sleeve which shows off his body.
A young woman sent by the Church, Dominique the exorcist supports Miriam's adventure throughout the game as a shopkeeper. Whereas many saw both Miriam and Gebel as demons now, Dominique is one of the very few who still treat the two as genuine human beings. Also a friend of Johannes, and knows Zangetsu for reasons yet to be explained.
- Bitch in Sheep's Clothing: When she came to the perspective-shattering understanding that if God exists, He clearly could care less if His followers are slaughtered wholesale, she became committed to attaining a power that can slay gods, and began to manipulate all the other parties involved under the radar, playing up the angle of the sweet-tempered helper while amassing power via shards straight from Miriam just to get rid of them all ultimately.
- Expy: She is one to Vincent from Portrait of Ruin, being sent by the church to aid Miriam and Johannes by acting as a shopkeeper. This is a facade. In reality she combines aspects of both Shaft from Symphony of the Night and Barlowe from Order of Ecclesia.
- Hair of Gold, Heart of Gold: She is one of the few characters who treats Miriam as a fellow human being and helps her quest to stop Gebel. Turns out she's actually a case of Blondes Are Evil.
- Hidden Buxom: She's definitely stacked underneath that blouse of hers, though it's not played for fanservice.
- Meganekko: A kind and attractive woman who wears a pair of glasses? Check.
- Nice Girl: Treats everyone kindly. It's just an act.
- Peek-a-Bangs: Her hair covers her left eye. Due to wearing glasses, it must be getting in her hair.
- Rage Against the Heavens: If heaven or whatever greater force there is is going to be content in humanity's suffering at demon hands, then she's all-too happy to tear heaven down.
- Uncertain Doom: She is not explicitly shown dying despite her Death Cry Echo upon Bael's defeat. All that can be said for certain is that she has been sealed away in the demon world along with Bael.
The mentor of Johannes, he's a powerful alchemist who was involved in the incident a decade ago. He's also a father figure for both Miriam and Johannes, or at least he was. Right now, he's only obsessed with finding the Book of Logaeth kept in Gebel's castle for an unknown reason...
Alfred is also a recruitable playable character in Curse of the Moon.
- Badass Long Robe: His long robe is old and tattered, but Alfred himself is a powerful alchemist with many spells at his disposal.
- Expy: In Curse of the Moon, he plays similarly to Sypha Belnades from Castlevania III.
- Implied Death Threat: In the 2019 Demo, when Johannes walks into Miriam's meeting with him, Alfred makes note that his magical strength exceeds Johannes, and tells him to take Miriam and leave the castle or else they will die. Whether he means by the monsters or himself is unclear, but it's there.
- The Stoic: Quiet and intelligent.
- Squishy Wizard: In Curse of the Moon, where he has low health, but a wide array of spells.
A rather...familiar-looking man who serves as the master librarian of the demon castle. As his name suggests, he is a vampire. He permits Miriam to rent tomes which augment her power.
- Bonus Boss: If you don't return the tomes you borrow from the library, he will appear towards the end of the game and challenge you.
- Expy: He is Alucard, from the design right down to having the same voice actor, practically to the point of Lawyer-Friendly Cameo.
- Punny Name: O.D., as in "overly-done (over-the-top)" and "Original Dracula".
- Time Stands Still: His special ability when fought as a boss, and the move you obtain upon defeating him.
A little girl saved by Miriam and Dominique when demons attacked her village. Unfortunately, her parents were already killed by the time it all happened. Despite everything, she's still a cheerful child who looks after the shop when Dominique is away.
- Cheerful Child: Keeps a bright and cheerful demeanor despite losing her parents. Whether she's genuinely strong or just trying to keep them up is still unknown.
One of the demons in Gebel's army.
- Big Bad: Of Bloodstained: Curse of the Moon. Also applies to Ritual of the Night.
- The Dragon: She acts as Gebel's right-hand underling. Except she isn't. Or rather, she isn't Gebel's Dragon. She's Bael's.
- Expressive Accessory: In Curse, the camel head hanging on her waist changes expression depending on what she's doing.
- Leitmotif: "Silent Howling", which serves as her boss theme in both Curse of the Moon and Ritual of the Night.
- Lunacy: IGA himself has stated that she is a moon goddess, and thus her powers are tied to the moon. The only thing currently shown in Ritual is that her teleportation has the visual of a blood moon, whereas in Curse, her attacks depend on what phase of the moon is showing, she uses crescent moons a la Death's mini sickles, and she starts dropping blood moons near the end of her boss fight.
- The Man Behind the Man: Though she functionally allocates to the traditional "Death" role, in actuality she's the driving force of conflict, first twisting Gebel into serving her ends, and then signing on with Dominique when the latter was all for the summoning of Bael, who is the actual "Dracula" allegory.
- Walking Spoiler: Due to being the true villain of Ritual of the Night.
The King of Demons who was sealed away long ago. Gremory and Dominique both seek to release him, the former to usher in a new age of Hell on Earth, the latter to gain ultimate power and become stronger than God.