DorotheaAn agency directly under the Prime Minister that investigates and suppresses Fairy-related crimes.
Voiced by: Kana Ichinose (Japanese), Jill Harris (English)
A new recruit to Dorothea. She has the peculiar power to summon a fairy without having the needed transplanted organ.
Her Fairy, Ash Clad, can turn anything it grabs into ashes or launch great jets of flame with its high-heat arms.
- Action Girl: She joined the mafia as a security guard before she even manifests a Fairy.
- Born Unlucky: She describes herself as such, having a history of attracting misery to herself, such as her parents dying shortly after she was born and her village being burned down. The fact the villagers of Suna treated her as an pariah did NOT help.
- Childhood Friends: She and Veronica were friends since childhood until their village was burned to the ground and they ended up separated from each other.
- Conflict Killer: Her Fairy manifests for the first time to stop the fight between Free and Veronica.
- Dark and Troubled Past: Her village was burned to the ground due to the betrayal of Ray Dawn during the war. As a result, both Veronica and Marlya were separated and she tried her best to find Veronica by joining the mafia.
- I Am Who?: Something's special about Marlya, as she managed to be possessed by a Fairy despite lacking any Fairy Organ to do so.
- Mafia Princess: She was adopted by the head of the Baiklay family, and the head treats her kindly, as if she was his own granddaughter.
- New Meat: As of the 2nd episode, she's the newest member of Dorothea. While she could more or less take care of herself prior, she needs a lot of help adjusting to the kind of work the agency does, namely undercover investigations and busting illegal Fairy users.
- Scarily Competent Tracker: She's quite good at wilderness tracking, as evidenced when she follows footprints to a sudden stop in an alley, and immediately figures out that the target doubled back over his own prints just like how bears do.
- Significant Green-Eyed Redhead: Has dark red hair, light green, almost blue, eyes, and is not only one of the main protagonists, but is also the first person on record to be directly possessed by a Fairy Primordial.
- Spell My Name with an "S": The Funimation subs for the show spell her name as "Marlya" while in other materials it is Maria.
Voiced by: Tomoaki Maeno (Japanese), Ian Sinclair (English)
The captain of Dorothea's first unit and dual wielding swordsman. He served as a Fairy Soldier during the War of Unification.
His Fairy, Red Hood, uses a sonic roar alongside its claws and fangs.
- Dual Wielding: He uses two swords when deciding to fight seriously.
- Foil: To Marlya. While she is a newbie who has little experience in both fighting and fairies, Free is a veteran war soldier who used fairies even back during the war and is still fighting now. Despite this, both share similar goals and while she is looking for Veronica, he too finds an old friend on the enemy side now.
- Force and Finesse: While Red Hood fights savagely, Free uses much more precise and graceful sword movements.
- Former Regime Personnel: A former Fairy Soldier of Ledrad, he continues to serve the new government of Unified Zesskia as a Dorothea operative.
- Oh, Crap!: He realizes things are looking really bad for Dorothea during the train ambush the moment he recognizes that Beevee Liscar is the man leading the attack.
- Secret Keeper: He, alongside Nein, knows that Marlya did not get her own fairy through surgery.
- Shell-Shocked Veteran: His experiences at the war clearly affected him, including watching one of his friends sacrifice himself to save him.
- The Big Bad Wolf: He is a reference to Little Red Riding Hood, being a huge werewolf named after the titular character.
- I Am Not Left-Handed: When Free tells him to stop fooling around with Boneless, Red Hood immediately proceeds to toss the blob monster away without effort.
- Mighty Roar: Red Hood has such a powerful howl, it can blow away a carriage.
- Our Werewolves Are Different: Red Hood looks like a huge, four-eyed werewolf.
Voiced by: Yoshiki Nakajima (Japanese), Micah Solusod (English)
A friendly member of the first unit and the sniper of the team. He is a carefree, talkative man who acts flirtatious. He often works together with Klara.
His Fairy, Blind Tail, is a mix of a snake and a centipede that entangles around Serge's arms to shoot energy from its tail.
- The Casanova: Downplayed, but he constantly greets his female coworkers with mild flirting, which constantly annoys Klara.
- Friendly Sniper: His main role in combat is to provide fire support from long-range and he's a pretty laid-back guy.
Voiced by: Ayaka Suwa (Japanese), Apphia Yu (English)
A member of Dorothea's first unit and a sensible, serious individual. In the past she was saved by Nein Auler, leading her to voluntarily receive a fairy organ transplant and join Dorothea. She usually works together with Serge to her dismay.
Her Fairy, Tomereez, is a small frog-like creature. Although having no seemingly fight skills, it allows to see the world through its eyes and therefore allows for infiltration and reconnaissance.
- Action Girl: Much like Marlya, she's a trained soldier and an efficient fighter.
- Alliterative Name: Klara Kysenaria.
- Attempted Rape: During the war, when she was a young girl, three soldiers intended to do this before Nein saved her. This is the reason why Klara is loyal to Nein.
- I'm Standing Right Here: When Serge introduces her to Marlya, he calls her a very scary person. Clara reminds him that she can hear him.
- I Owe You My Life: The reason why she's loyal to Nein is because she saved her from three soldiers, who were heavily implied to intend to gang-rape her, as a young girl.
- Kicking Ass in All Her Finery: While Marlya takes down some of the mooks, she also knocks out one of the goons of a sleazy informant and draws a knife to his throat, all in a pretty pink dress.
- Meganekko: A rather cute glasses-wearing girl.
- Vitriolic Best Buds: Mostly one-sided, but she's constantly annoyed by Serge's laid-back attitude and flirting.
- Target Spotter: Her Fairy provides Klara with long-distance observation and support for Serge's sniping.
Voiced by: Mie Sonozaki (Japanese), Colleen Clinkenbeard (English)
The director and first unit commander of Dorothea who works to maintain peace and fulfill her agency's missions. She was one of the Seven Knights during the War of Unification.
- Beauty Mark: On the left side of her mouth.
- Da Chief: The head of Dorothea.
- Lady Looks Like a Dude: Without hearing her voice, it would be quite easy to mistake her for a man with her sharp features and thin, flat build. Ironically, she was more feminine during the war as a frontline soldier. The years running the Dorothea agency must have been rather harsh on her.
- Red Baron: "The Witch of Aideleen."
- Secret Keeper: She, alongside Free, knows that Marlya did not get her own fairy through surgery.
- The Squadette: Back during the Unification War, she was the one female member of the Seven Knights.
Voiced by: Kōji Okino (Japanese), Oscar Seung (English)
A former military soldier and a member of the Security Bureau who transferred into Dorothea after the war. He is mainly in charge of interrogation and investigation.
- Internal Affairs: Where he worked before joining Dorothea, which is why some of his co-workers distrust him.
- Last-Name Basis: He's never called Robert, which shows the distance his coworkers keep from him. When Marlya addresses him as Robert, he's genuinely surprised.
- Two First Names: Both Robert and Chase can be used as first names.
Voiced by: Atsumi Tanezaki (Japanese), Leah Clark (English)
The captain of Dorothea's third unit. She is not a fairy soldier but is a capable leader who is trusted by her subordinates.
Voiced by: Yasuhiro Mamiya (Japanese), Cris George (English)
A member of Dorothea's first unit. He is a large, quiet man.
- A Death in the Limelight: The only episode where he shows what he's capable of is the episode where he dies.
- Bald of Awesome: Completely bald and a member of Dorothea.
- Big Guy Fatality Syndrome: The biggest guy of the agency is also its first one to die during when Dorothea's train is ambushed during a transport mission.
- Heroic Sacrifice: Gets gunned down and then takes a fatal laceration trying to protect Marlya.
- A Load of Bull: His fairy looks like a multi-tailed, ram-like minotaur.
- The Quiet One: When compared to his colleagues, he doesn't talk too much.
Voiced by: Mikako Komatsu (Japanese), Gloria Vivica Benavides (English)
A doctor and fairy engineer from Redrad in Dorothea's medical technology department. She provides medical services for her colleagues as support personnel.
Voiced by: Aoi Koga (Japanese), Bryn Apprill (English)
A rare animal of the Czeschka maticarna species that can smell fairies.
- Affectionate Nickname: "Chima" is shorthand for Czeschka maticarna, the creature's scientific name.
- Ridiculously Cute Critter: A tiny fox-like creature that Marlya befriends.
- True Sight: Free notes that this little guy can see fairies outside of fairy bottles, which are otherwise invisible to humans.
Voiced by: Ayaka Fukuhara (Japanese), Emily Neves (English)
Marlya's childhood friend and one of the survivors of the village Suna that was burnt to the ground during the war. Since then, she swore vengeance against General Ray Dawn, the soldier responsible for the destruction of her home, and became an assassin.
Her Fairy, Blood Daughter, enters wounds that Veronica inflicts and destroys targets' bodies from inside.
- Affectionate Nickname: Marlya called her "Ver" in their childhood.
- Born Lucky: A rather dark subversion. Her luck made her a potential Human Sacrifice to preserve Suna from Fairy Imaginals.
- Big Damn Heroes: Crashes through a church window, just in time to save Marlya from Jonathan.
- Childhood Friends: She and Marlya were friends since childhood until their village was burned to the ground and they ended up separated from each other.
- Dark Action Girl: A female assassin who opposes Dorothea and has a deadly Fairy that lets her stand toe-to-toe against Free, a veteran Fairy Soldier.
- Fights Like a Normal: During her fight with Jonathan, she only summons Blood Daughter when she has finally injured him.
- HeelFace Turn: Marlya is able to convince to let go of her revenge against Duke Ray Dawn.
- Heroic Sacrifice: Downplayed as Veronica was already mortally wounded, but her last act is to push Marlya to safety.
- Knife Nut: Her main way of fighting is with a knife.
- That Man Is Dead: When she meets Marlya again after years she states that the Veronica from Suna is gone.
Voiced by: Takehito Koyasu (Japanese), John Burgmeier (English)
A Fairy Scholar working with Veronica to collect the Black Fairy Tome.
- Ambiguously Evil: His reasons for wanting to collect the Black Fairy Tome are unclear. Turns out he was working to destroy the Black Fairy Tome to keep it from the Eins Order
- Famous Ancestor: He's a descendant of the Black Fairy Tome's creator Cuicia Asbastora. He's secretly working to destroy his ancestor's work.
Voiced by: Mugihito (Japanese), Ben Bryant (English)
- Locked Out of the Loop: He doesn't seem to be aware of the secret dealings Cain is doing to obtain the Black Fairy Tome.
ArcameA mafia group that buys and sells illegal Fairies as well as manufactures artificial Fairies.
Voiced by: Yoshimasa Hosoya (Japanese), David Matranga (English)
A former Fairy Soldier who fought with Free during the War of Unification. After losing his wife and daughter during the war, he fell into despair and now works for the Arcame mafia organization. Although he usually does not show emotions, he can be hot-headed in battle.
His Fairy, Fitcher, uses its six bladed arms to slice enemies.
- Crusading Widower: We see at the end of episode 2 that his wife and daughter died some time ago.
- Former Regime Personnel: Being on the losing side of the war, he has gone rogue and started working for a mafia organization, unlike Free who continues to serve the new government.
- The Heavy: The chief operative for Marco Bellwood. He has been at the center of many of the various schemes involving the Dorothea agency and the Black Fairy Tome: it is practically a given that wherever there is chaos, Wolfran is involved.
- HeelFace Turn: Ultimately, he helps Free defeat Griff Mercer.
- Leave No Witnesses: When a deal goes sideways thanks to Dorothea, he executes all his accomplices so no one can be interrogated.
- Redemption Equals Life: He's the only associate of the Eins Order to survive. At the battle, he returns to his old home.
Voiced by: Shinji Kawada (Japanese), Kyle Igneczi (English)
An errand boy for Arcame.
His Fairy, Pillywiggin, is weak but able to fly and distract enemies.
- Batman Gambit: His whole plan to steal the Black Fairy Tome relied on causing a ruckus in Cain's house, causing Damian to panic and check to see if the tome was there... which would reveal exactly where it was being kept. Unfortunately for Axel, Damian Out-Gambitted him because the "tome" was actually the fake page stolen by Veronica at the auction, and thus worthless.
- Determinator: Gets up and tries to walk away after being shot by Bitter Sweet. He manages to survive.
- Weak, but Skilled: Pillywiggin might be useless for combat, but can be useful to distract opponents.
Gui CarlinA mafia group that specializes in buying and selling illegal antiques and valuables.
"Sweetie" Bitter Sweet
Voiced by: Minako Kotobuki (Japanese), Morgan Garrett (English)
A businesswoman partnered with Gui Carlin. Pleasant and merciless, she is pursuing the Black Fairy Tome and becomes acquainted with Free when he infiltrates the mafia group.
Her Fairy, Skriker, makes enemies receive whatever damage that they inflict.
- Affably Evil: For an enforcer of the mafia, she's surprisingly pleasant when in a good mood.
- Everyone Has Standards: She's rather disgusted that Free is so willing to serve Unified Zesskia as a Dorothea agent when it was the very country he was fighting against during the War of Unification.
- Femme Fatale: A pretty solid example of one, she can be very affectionate and teasing (particularly around men) one moment and ready to fight and kill the next.
- Lady in Red: Wears a nice looking red coat, and she's an efficient Dark Action Girl.
- Lady of Adventure: She styles herself as one, and would greatly prefer being called a "businesswoman" or an "adventurer" rather than part of the mafia.
- Lady of War: Fights gracefully with a revolver and Sword Cane at hand while wearing her stylish business suit and maintaining her pleasant, lady-like demeanor.
- Nice Hat: Her second outfit shows her wearing one.
- Reverse Grip: Equally skilled at wielding her blade in this manner as in the normal way.
- Screw This, I'm Outta Here!: After almost getting killed by Eajay, she decides the trouble over the Black Fairy Tome is just not worth it and starts making plans to leave Eastald for the distant continent of Westald. The very last shot of her in the anime shows she makes good on it and takes a ship to Westald with Patricia.
- Sword and Gun: Packs a seven-shot revolver in addition to her Sword Cane.
- Wicked Cultured: Able to tell the brand and year of a glass of wine before she even takes a sip. According to her, she knows her drink order due to her family being in the wine business for several generations.
- Attack Reflector: Its ability is to reflect whatever damage is done to it back at the attacker. However, it doesn't negate said damage to the Fairy or the pain Sweetie feels, just that both Sweetie and her opponent get the same effect. Marlya manages to drive her off by tanking the pain and outlasting Sweetie.
Voiced by: Yuka Iguchi (Japanese), Alexis Tipton (English)
A member of Gui Carlin, she carries around a huge trunk that houses a variety of weapons such as guns and daggers.
Her Fairy, Boneless, can turn parts of its body into a jelly-like substance that clings to an enemy, restricting movement.
- Alliterative Name: Patricia Pearl.
- Dark Action Girl: A female member of the mafia able to hold her own against Free, a veteran Fairy Soldier.
- Handbag of Hurt: She uses her giant trunk as a melee weapon while clashing with Free.
- IKEA Weaponry: One of the weapons in her suitcase is a takedown rifle that can be disassembled into two parts.
- Know When To Fold Them: When she realizes she can't defeat Free and Red Hood she quickly makes her escape.
- Trademark Favorite Food: She always orders fresh water to drink, because she apparently doesn't like any flavored water.
- Blob Monster: A creature seemingly made of jelly that uses its body to bind enemies.
Voiced by: Kazuyuki Okitsu (Japanese), Jerry Jewell (English)
Patricia's acquaintance. He is a sadistic self-proclaimed artist who wants to harm others, seeing it as an act of art to understand a person.
His Fairy, Jenny Haniver, can hold weapons in its body and blow up like a balloon to attack enemies in different directions.
- Affectionate Nickname: Invoked. He wants Marlya to refer to him as "Jona".
- Axe-Crazy: As Marlya can attest, he's clearly off his rocker.
- Dual Wielding: He wields two knives simultaneously.
- Go Out with a Smile: Just as Blood Daughter is about to kill him, he smiles like a lunatic as blood pours from every orifice in his body.
- Knife Nut: His main way of fighting are knives.
- Mad Artist: He wants to inflict pain, seeing it as an art and calling himself an artist.
- We Hardly Knew Ye: All there seems to be about him is that he's a psycho obsessed with art. He's killed by Veronica shortly after.
Voiced by: Hochu Otsuka (Japanese), Jim White (English)
- Big Bad: He's the main villain, the leader of the Eins Order, planning to unless the Original Fairy against Unified Zeskia.
- Eyes Always Shut: He usually has his eyes closed unless being serious.
- Famous Ancestor: He's a descendant of Hel S. Bellwood, the author of the Original Fairy Tome.
- Karmic Death: Bellwood is destroyed by the very monster he unleashed. Given his beliefs he was probably fine with it though.
Voiced by: Kenjiro Tsuda (Japanese), Christopher Wehkamp (English)
- Number Two: Serves as this for Minister Bellwood.
Voiced by: Eizou Tsuda (Japanese), Kent Williams (English)
A general during the War of Unification and one of the Seven Knights. After the war he became one of the Five Dukes and crowned the Duke of Kal-o. He ordered the burning of his hometown Suna Village.
- Cain and Abel: Killed his own brother, Jurgen Dawn, during the destruction of Suna. Jurgen had washed out of the army with a severe leg injury while Ray Dawn became a Duke.
- Four-Star Badass: Earned his rank during the War of Unification. Even at his age, he successfully took out Swarz Diese during the coup. Even injued, he was able to hold off Beevee Liscar for a while.
- Heroic Sacrifice: Dies saving Marlya and Veronica from Mercer. While his fairy holds off the attack, the feedback is too much for the wounded Ray Dawn.
- Human Resources: His Fairy Organ is harvested by the Eins Order and used to create the Divine Beast.
- Like Father, Unlike Son: His father, Thori Dawn, was a Fairy Guardian who worked to guard the village and its Fairies, Ray destroyed everything his Father protected.
- Moral Event Horizon: Feels he crossed it when he destroyed Suna and acknowledges his death could never atone for it.
- No Man Should Have This Power: The reason he destroyed Suna. He believes that Fairies have no place in the world and wishes that they had never existed.
- Pet the Dog: Released Veronica from jail after she tried to kill him.
- Treachery Is a Special Kind of Evil: The destroyer of Suna was himself a resident of the village, and Veronica has made it her life mission to execute him for his unforgivable act of treason.
- The Unapologetic: Claims he has no regrets for what he did.He does.
- Used to Be a Sweet Kid: Was a curious and likable young boy, then he went off to war...
- Well-Intentioned Extremist: It's revealed in episode 13, he destroyed Suna, because the power its fairies offered was too much of a temptation for abuse, along with the gifts of the villagers. Given the devastation fairy soldiers can bring, and how eager people are to acquire the secrets of the Black Fairy Tome, he wasn't wrong.
- Where I Was Born and Razed: Obviously. Grew up in Suna, went off to war, and returned to destroy it.
Voiced by: Takaya Hashi (Japanese), R. Bruce Elliott (English)
The duke of Hybranz and one of the Five Dukes who was given a special territory for his role in the War of Unification. He is also Nein Auler's former superior. Unlike the other Five Dukes, he is in compliance with the unified government.
Voiced by: Hiroki Tochi (Japanese), Clifford Chapin (English)
A hero of the War of Unification and one of the Seven Knights. He sacrificed himself protecting Free.
Voiced by: Kenji Nomura (Japanese), Robert McCollum (English)
One of the Seven Knights of the War of Unification, he was crowned as one of the Five Dukes and became the Duke of Nova after the war. He was killed for treason after instigating a rebellion.
His Fairy, Norca, was said to be the largest fairy of the Fairy Soldiers', and could swallow enemies with its giant jaw.
- Artificial Limbs: He had a telescopic artificial arm that served as a fairy weapon.
- Conspicuous Gloves: He wore a glove on his right hand, which was not only artificial but also a fairy weapon.
- The Paragon Always Rebels: Despite being one of the Seven Knights and crowned one of the Five Dukes, he was suspected of rebelling against the unified government. This accusation enraged him so much that he actually started a rebellion.
- Then Let Me Be Evil: He was so angered by suspicion that he rebelled against the unified government that he actually started a rebellion.
- Swallowed Whole: Due to its gigantic mouth it could do this to enemies.
Voiced by: Hisao Egawa (Japanese), Bryan Massey (English)
A legendary Fairy Soldier who was one of the Seven Knights. After the war he resisted unification and became a war agent.
His Fairy, Aizencup, is a three-headed dog with great strength from its large weight.
- Blood Knight: He clearly relishes in the challenge of facing strong opponents.
- Former Regime Personnel: Another former soldier from the Unification War. Like Wolfran, he is opposed to the new order of things and runs a mercenary outfit that is stirring up trouble on the continent.
- Hero Killer: Earns this distinction by episode 9, when he kills Ozz.
- Good Scars, Evil Scars: Has a long scar on the right side of his face.
- One-Man Army: In the first cour finale, he could have easily taken on the entire defense force at the imperial palace on his own, what with his possessing both a Fairy Weapon and one of the most powerful fairies to have seen action during the Unification War.
Voiced by: Shizuka Ito (Japanese), Mikaela Krantz (English)
Beevee's subordinate. A versatile soldier, she is an excellent sniper and fights with a dagger.
- Badass Normal: She does not have a Fairy, but is still a capable soldier regardless.
- Bodyguarding a Badass: To Beevee, who is far more than capable of taking care of himself.
- Subordinate Excuse: Holds strong feelings for Beevee, to the point that she'd die by his side on the battlefield than live on without him.
- Together in Death: Gets shot to death and expires mere moments after Beevee does, right by his body.