Arthur runs the Marsyas Orphanage for magical children. As a phoenix, he possesses fire abilities that historically made him a target of the human government. He focuses entirely on providing a safe and affirming home for his six young charges. His intense protective instincts stem from the severe abuse he suffered in the exact same facility during his youth.

Linus lives at the orphanage after resigning from his position as a government inspector. He provides grounded stability to the highly magical household. He wears sensible clothing and worries about propriety, offering a calm counterbalance to the daily chaos. He views the children as his own and actively fights his former employer's discriminatory policies.

Zoe resides in the woods of Marsyas Island as an unregistered sprite. She maintains control over the local flora and actively assists in running the orphanage. She operates with total independence from the human government and provides practical counsel to Arthur when he becomes overwhelmed by his responsibilities.

Jeanine works as the Minister of Education and the acting head of the Department in Charge of Magical Youth (DICOMY). She enforces strict regulations designed to marginalize magical individuals. She actively targets the Marsyas Orphanage, believing the children present a fundamental threat to human society.

Harriet serves as a severe DICOMY inspector sent to evaluate the orphanage. She insists on strict decorum and openly disapproves of magical beings. She spends her visit looking for legal justifications to permanently separate the children from their caregivers.

Lucy is a young boy and the literal son of the Devil. Despite his fearsome lineage, he is a deeply affectionate child who cares about his family. He often struggles with the world's expectations of him, trying to reconcile his destructive nature with his desire to make his parents proud.

Sal is a shy teenager who can transform into a small Pomeranian dog. He functions as a mature, protective older brother to the younger children. He frequently pushes Arthur to stop shielding the children from the reality of the prejudice they face.

Talia is a female-identifying gnome who proudly sports a long white beard. She devotes her time to gardening and brewing homemade poisons. She is highly protective of her family and often suggests violent but humorous solutions to their problems.

Phee is a young forest sprite with immense power over plant life. She possesses a strong sense of justice and frequently expresses frustration at the outside world's treatment of magical people. She develops her abilities under the guidance of the island's resident sprite.

Theodore is a wyvern who communicates through a unique series of chirps. He hoards small treasures in his room and participates enthusiastically in family activities. He remains highly loyal to his siblings and eager to protect his home from outside threats.

Chauncey is an amorphous green blob with tentacles and eye stalks. He dreams of working as a hotel bellhop and approaches the world with unbridled optimism. He often leads the family on imaginative, elaborate adventures near the ocean.

David is a ten-year-old, five-foot-tall yeti whose parents were killed by a big game hunter. He is an unregistered magical being who uses costumes and theatrical games to cope with his trauma. He initially struggles to believe he can find a safe home without hiding his true nature from authorities.

Helen is the mayor of the mainland village near Marsyas Island. She works to foster a welcoming environment for magical beings in her town. She treats the orphanage residents with warmth and supports their integration into the broader human community.

Charles is a former DICOMY worker who historically proposed reopening the Marsyas Orphanage. He later joins Extremely Upper Management and submits a written statement to the government attacking Arthur's character during the hearing.

Larmina is a sympathetic government employee who is married to a magical woman. She covertly assists Arthur and Linus by providing them with crucial information about the true nature of their hearing before it begins.

Jason provides temporary shelter for unregistered magical beings in the city. He keeps David hidden from authorities while arranging for his permanent placement at the orphanage.

Byron is Jason's partner who helps run the safehouse for magical youth in the city. They assist in keeping David safe from government detection before his move to the island.

J-Bone owns a record store in the mainland village. He maintains a friendly rapport with the orphanage children and happily plays along with their theatrical games.

Calliope is the family's pet cat. She operates with feline independence but remains fiercely protective of the children, especially when they are threatened by outsiders.