Isaac is a 10-year-old Choctaw boy who introduces himself as a ghost recounting the events of his people's forced relocation. He experiences supernatural visions preceded by warm shivers, which allow him to see future events before they happen. He takes his responsibility to his family and friends seriously, acting as a protective figure to those younger than him. His unique connection to the spiritual world places him in a position to help his community on the trail.

Joseph is a young Choctaw boy, slightly older than Isaac, who possesses the supernatural ability to transform into a panther. As the grandson of the oldest members of their community, he holds a strong connection to his people's traditions. He uses his shapeshifting ability and past experiences with the soldiers to assist his fellow Choctaws when they face danger on the trail.

Luke is Isaac's 12-year-old older brother who initially avoids chores and helping around the house. As the forced relocation pushes the Choctaws out of their homes, he learns to take on more responsibilities. He uses his blowgun to hunt for food and slowly steps into a more active role in protecting their community.

The leader of the Nahullo soldiers acts as the primary oppressive force carrying out the Indian Removal Act against Isaac's community. He uses intimidation, cruelty, and violence to maintain control over the travelers. He shows open hostility toward the Choctaw people, exploiting their vulnerabilities during the harsh winter weather and disregarding the terms of the peace treaty when it suits his agenda.

Naomi is Nita's sister who faces separation from her family during the forced removal. She endures harsh treatment while forced to work for the Nahullo soldiers, who use her as a servant. Despite the terrible conditions and threats from her captors, she maintains remarkable courage and hopes to reunite with her parents.

Nita is a young Choctaw girl who walks the forced relocation trail with her parents, Gabe and Ruth. She quickly bonds with Isaac, asking him to act as her big brother on the icy journey. Her safety becomes a primary motivation for Isaac as the harsh winter conditions take their toll on the traveling families.

Isaac's mother is a resilient Choctaw woman who understands her people's deep spiritual connection to their ancestral land. She acts as a guiding force for Isaac, helping him interpret the changes happening around them. She prioritizes keeping her family united and remains incredibly calm when Nahullo soldiers attack their town.

Isaac's father is a practical provider who focuses entirely on protecting his family from immediate physical dangers. When the Nahullo soldiers burn their homes, he organizes the survival efforts in the swamp by building lean-tos out of pine limbs. He teaches his sons how to keep moving forward when facing intense physical pain on the icy trail.

Jumper is Isaac's dog and constant companion who possesses the ability to communicate verbally with his owner. He shares Isaac's fears about the changing world and the appearance of ghosts in their community. He assists the family by hunting squirrels with Luke and provides vital emotional support to Isaac.

Gabe is a Choctaw father traveling the relocation trail with his family. He carries the heavy burden of a terrible secret involving his older daughter, fearing violent retaliation from the soldiers if he speaks out. He welcomes Isaac's family to travel alongside them for mutual support and warmth on the icy road.

Ruth is a Choctaw mother forced to walk the icy trails while enduring profound personal loss. She is initially terrified to speak about the injustices committed by the Nahullo soldiers due to direct threats against her remaining child. She focuses on putting one foot in front of the other during the grueling journey.

Old Man is the oldest man in the Choctaw town and Joseph's grandfather. When the Nahullo soldiers attack, he immediately organizes the Choctaws' survival tasks in the swamp, assigning hunting and building duties. He later makes a fatal misjudgment by trusting the soldiers when they arrive offering blankets.

Old Woman is the oldest woman in the Choctaw community and Joseph's grandmother. She follows her husband's lead in accepting the seemingly generous gifts from the Nahullo soldiers, which introduces devastating illness into their camp.

Mister Jonah is a dedicated elder in the Choctaw community who deeply respects their ancestral land. After his home is destroyed, he appears in Isaac's visions and continues to offer crucial guidance to the young boy from the spiritual plane.

Missus Jonah is an elderly Choctaw woman who participates in traditional farewell rituals before the forced relocation. She faces the hardships of the Nahullo attack alongside her husband and transitions into the spiritual world to watch over her people.

Nani Humma is a Choctaw councilman who travels in the lead wagons to ensure the soldiers uphold the treaty. He initially accepts Isaac's offer of help around their camp but quickly senses the boy is hiding his true motives. He acts as a bridge between the vulnerable Choctaw travelers and the political realities of the treaty.

Mister Tibbi serves as the head of the Choctaw council overseeing the relocation. He listens to the plight of the missing children and strategically decides how the councilmen can assist. He works to subvert the soldiers' cruelty without openly breaking the fragile treaty rules that keep his people alive.

General Pushmataha is the spirit of a famous historical Choctaw leader. He watches over his people from the spiritual world, offering them pride and recognition for their bravery. His presence brings a deep sense of cultural strength to the young Choctaws facing impossible odds.