Ishi is an African elephant calf possessing an extraordinary, perfect memory from birth. He belongs to a herd led by his mother, Moon Mother, and quickly learns the harsh realities of survival on the savanna. His early life is violently upended when poachers attack his family, leaving him wounded and orphaned until humans rescue him.

Gichinga is a ruthless poacher operating in post-colonial Kenya. He views wildlife strictly as a source of ivory and profit, orchestrating violent attacks on elephant herds. He is shrewd and ambitious, using the political climate of the newly independent government to protect his illegal activities and evade legal consequences.

Kamau is a fourteen-year-old Kikuyu boy who possesses an unusual empathy for animals. While on his survival rite, he discovers an orphaned elephant calf and abandons his traditional journey to seek help. This act of compassion leads him to join the staff at Salisbury Hill Farm, setting him on a path toward a career in veterinary medicine and wildlife conservation.

Russell is a thirty-eight-year-old British professional safari hunter and former army officer. He guides wealthy clients on big-game hunts but maintains a respect for the African wilderness, placing his profession in direct opposition to his wife's animal rescue work. He actively opposes the illegal ivory trade, occasionally adopting vigilante tactics against poachers.

Jean is a dedicated animal advocate who runs an orphaned-animal rescue operation at Salisbury Hill Farm. She fiercely protects the vulnerable animals in her care and struggles with her husband's profession as a big-game hunter. She provides maternal care to both rescued wildlife and the young staff who work for her.

Amanda is the fourteen-year-old daughter of Russell and Jean, characterized by her sharp observations and growing independence. Her early exposure to the violence of poaching significantly influences her worldview and pushes her toward an eventual path in investigative journalism.

Terence is the twelve-year-old son of Russell and Jean Hathaway. He faces significant emotional and physical challenges when sent away to an English boys' boarding school. He struggles with severe bullying in a harsh, hyper-masculine environment, finding it difficult to cope with the expectations placed upon him.

Mother Blue is the wise and compassionate matriarch of a wild elephant clan. She demonstrates strong leadership and empathy, communicating with animals outside her immediate family. She offers guidance and a sense of belonging to young, displaced elephants on the savanna.

Big Black is an aging, ill-tempered rogue bull who leads a bachelor herd of male elephants. Despite his gruff exterior and cynical demeanor, he provides necessary structure and protection for young males who have been separated from their maternal herds.

Trevor is a fifty-three-year-old assistant game warden in Zambia who approaches wildlife management from a highly pragmatic, bureaucratic perspective. He views wandering animals primarily as nuisances or liabilities and prefers to handle problems quietly through lethal means rather than public rescue operations.

Jeremy is a preserve manager and naturalist tasked with overseeing expansive wildlife operations. He prioritizes the safety and health of the animals in his care, actively intervening to prevent harm to wildlife while managing the demands of his wealthy, eccentric employer.

Werner is a wealthy and eccentric American benefactor who funds a private game preserve in Zambia. He is drawn to spectacle and holds immense financial influence, using his resources to shape wildlife conservation efforts into large-scale public events.

Moon Mother is an adult female elephant who assumes leadership of her herd following the death of the previous matriarch. She is fiercely protective of her calf, defending him against both natural predators and rival herd members.

She Storms is a female elephant injured by a lightning strike who aggressively seeks dominance within the herd. Her ambition leads to violent conflict, threatening the safety of the herd's youngest members.

Tatiana is a female elephant carrying profound trauma from years of abuse in a captive entertainment setting. She is highly protective and deeply affected by her past, struggling to adapt to life in an enclosure.

Ariel is a charismatic older animal-rights activist who recruits college students into his radical organization. He organizes direct action campaigns against laboratories and corporations, often using extreme methods to achieve his ideological goals.

Little Stream is a young male elephant who shares early memories with Ishi. He offers companionship and a connection to the past during times of displacement and uncertainty on the savanna.