Heather is a resourceful and agile young rabbit whose peaceful life in Nick Hollow is shattered by a sudden wolf attack. She possesses a natural speed that she relies on during times of crisis and feels a deep, almost maternal responsibility to protect her younger brother. As she enters the wider world, she struggles to find her footing in a resistance community while grappling with the heavy social burden of her family's name.

Picket is a young rabbit with a keen mind for spatial reasoning but a debilitating fear of heights and a tendency to faint under pressure. Following the destruction of his home, he wrestles with intense feelings of guilt, inadequacy, and resentment toward those he views as more capable. He channels his inner turmoil into a fierce desire to become a warrior, often clashing with those trying to help him.

Smalls is a highly capable and courageous white rabbit who assists Wilfred in rescuing the Longtreader siblings. Despite his unassuming name, he possesses immense skill in combat and a deep sense of honor. He serves as a steadfast protector during their journey to Cloud Mountain, bearing the weight of a secret duty to the resistance.

Wilfred is the Longtreader siblings' uncle and a valiant, highly skilled warrior. He serves as a critical bridge between their lost family and the wider resistance at Cloud Mountain. Haunted by a deep sense of guilt and failure regarding his family's past, he dedicates his life to protecting Smalls and bears the social stigma attached to his family name with quiet endurance.

Redeye is a formidable wolf captain marked by a scarred face and a single, menacing red eye. As a lieutenant among the wolves, he is a cunning and brutal military commander who hunts Heather and Picket with relentless efficiency. He harbors a deep, personal hatred for the rabbits, stemming from his father's defeat in a past war.

Morbin Blackhawk is the overarching villain of the realm and the leader of the Lords of Prey. Though he operates primarily in the background, his tyrannical influence and pursuit of a sacred object drive the relentless violence of the wolf armies against the remaining rabbit communities.

Helmer is a former captain in King Jupiter's army and an expert warrior defined by his brooding silence and harsh, pessimistic worldview. He isolates himself from the hopeful community of Cloud Mountain, believing that their war against the wolves is already lost. Despite his deep cynicism, he possesses a brutal expertise that he reluctantly shares as a mentor.

Emma is a cheerful and loyal medical apprentice living at Cloud Mountain. As an orphan who has found purpose in healing others, she provides immediate friendship and vital emotional stability for the newly arrived Longtreader siblings. She serves as their primary guide to the community's laws, layout, and hopeful philosophy.

Lord Rake is the elegant, diplomatic, and authoritative leader of the Cloud Mountain community. As a former councilor to King Jupiter, he carries the heavy responsibility of uniting various rabbit factions against a common enemy. He provides sanctuary for wartime refugees and works tirelessly to legitimize the resistance movement.

Kyle is a charismatic and mischievous rabbit who delights in spreading rumors and sharing folklore about hidden lands and secret heirs. While his charming exterior easily wins over newcomers, others in the community view him as a self-centered hooligan. His allegiance remains ambiguous as he navigates the complex social dynamics of Cloud Mountain.

Maggie, also known as Mrs. Weaver or Maggie O'Sage, is a revered counselor and mentor within the community. She channels the pain of her past losses into a deep empathy, providing essential spiritual and emotional guidance to those around her. She articulates the core philosophy of their resistance, encouraging others to anticipate a healed world.

Captain Frye is a gruff, belligerent soldier visiting Cloud Mountain from the Halfwind Citadel. He personifies the deep-seated prejudice against the Longtreader family, representing the mistrust and division that plague the fragile rabbit resistance. His open hostility makes the social burden of the Longtreaders' legacy a tangible threat.

Garten is the eldest uncle of Heather and Picket, famously known as King Jupiter's former chief ambassador. His historical actions cast a long, dark shadow over the Longtreader family, leaving a legacy of betrayal that profoundly impacts his relatives' standing in the current rabbit society.

Father is the patriarch of the Longtreader family, living a quiet, obscure life in Nick Hollow to shield his children from the dangers of the wider world. He is a loving parent who shares stories of past golden ages with his family, though he harbors deep sadness regarding his own family's history.

Mother is a caring and protective presence in the Longtreader household. She helps maintain the idyllic peace of their home in Nick Hollow and shares in the quiet, unspoken burdens of her husband's past, often singing songs that are both sad and hopeful to comfort her children.

Jacks is the baby brother of Heather and Picket. His presence in the family highlights the innocence and vulnerability of their peaceful life in Nick Hollow before the devastating wolf attack tears them apart.

Lady Glen is an elderly, stern rabbit dressed in black who visits the Longtreader home with urgent warnings about impending danger. She tests the children's loyalty to the ideals of the fallen kingdom, serving as a harbinger of the conflict that soon engulfs their lives.

King Jupiter Goodson was the heroic and wise ruler of the Great Wood during its golden age. Known as both a fearsome warrior and a skilled diplomat, his tragic fall and lasting prophecies form the mythological and moral foundation for the current rabbit resistance.

Doctor Zeiger is a medical professional at Cloud Mountain with a thick accent and a perceptive nature. He correctly diagnoses both physical ailments and emotional struggles, guiding his apprentice Emma in the holistic care of the community's refugees.