Ophelia is a four-year-old fairy with cobalt blue hair and eyes, taking her middle name from the flower that birthed her. As a recently graduated Granter, she views her job as the most critical profession in the Haven and approaches it with intense seriousness. She is highly meticulous, relies heavily on lists, and insists on strict adherence to fairy rules. Her over-preparedness masks her lack of experience in the human world.

Charlie is a Granter fairy with pink hair, pink eyes, and acorn-hued skin. He acts as Ophelia's foil, possessing a notoriously messy and laid-back personality that contrasts with her strict organization. He currently works desk duty after refusing to complete a previous assignment involving a spoiled child.

Barnabus Oleander Squint serves as the Chief of the Granter's Guild. He is taller than most fairies, with silver eyes and hair. He is highly calculating and fixated on maintaining the Guild's perfect completion rate by strictly enforcing traditional rules and processes, even when they seem ineffective.

Sam is a golden-haired, mangy-looking stray dog who lives in the human world. Abandoned by a previous owner on the side of the road, he generally fears humans and has grown accustomed to a difficult life on the streets. Despite his past, he maintains a highly positive attitude and lives entirely in the moment.

Gabe is a young boy with dark, wavy hair and chestnut eyes. He struggles deeply with anger, irritability, and a profound sadness due to his father's deployment in the military. His emotional distress creates a dark aura that Ophelia can clearly see, drawing her attention to his unspoken desires.

Anna is Gabe's younger sister. She helps her brother run a lemonade stand to earn money and frequently tries to catch insects or small animals in the yard. Like the rest of her family, she feels the absence of her deployed father but expresses it differently than her brother does.

Anthony is a corporal in the Marines who is stationed overseas. His absence creates a heavy emotional toll on his family, particularly his son Gabe. He is known by his family for making excellent chocolate chip and whipped cream pancakes.

Mrs. Morales manages the household while her husband is deployed. She works hard to keep her children supported and functioning, though she hides her own exhaustion and sadness from them. She frequently has to mediate Gabe's irritable outbursts.

Kasarah is a teenager from Kettering, Ohio, whose bicycle was recently stolen. She tosses a nickel into a mall fountain, wishing for a new purple bike. Her simple, material request initiates Ophelia's entire journey into the human world.

Paolo is a Founder fairy who brought Ophelia from her birth flower to the safety of the Haven. He assigned Ophelia her last name because of her constant movement as a child. He used to hum a specific tune that Ophelia still uses to calm herself.

Rebecca is a fellow Granter fairy in the Haven. She openly voices her frustration when she is assigned to grant a teenager's wish for a PlayStation, feeling that the task is unimportant and a waste of the dwindling magic supply.

Arnold is a Modder, one of the fairies responsible for creating and maintaining the equipment Granters use in the field. He is highly cautious about the outside world and provides Ophelia with knockout gas for protection against non-human threats.

Silas is one of the oldest fairies in the Haven and works as an archivist. As a former Granter, he holds strict opinions about which wishes are worthwhile, showing little enthusiasm for Ophelia's assignment involving a bicycle.

Patch is a declawed gray and white neighborhood cat. He enjoys stalking birds and initially mistakes Ophelia for one due to her camouflage. He regularly manipulates the local humans, including the Morales family, into feeding him.

Edna is a nurse in the Haven. She is practical and comforting, tasked with healing injured fairies who return from the outside world. She demonstrates an understanding of the difficult choices Granters face in the field.