Perceval is a young Welshman born to a noble family and raised by his widowed mother in deep seclusion. His sheltered upbringing leaves him thoroughly ignorant of the ways of the world, particularly the rules of chivalry and courtly life. Despite his bumbling, foolhardy nature and rustic manners, he is an adept fighter whose carefree disposition masks a sincere desire to learn. He sets out to prove himself, eagerly absorbing lessons while consistently taking instructions far too literally.

Gawain is King Arthur's nephew and one of the most distinguished, experienced knights of the Arthurian court. He represents the ideal of knighthood, displaying intelligence, steadfast loyalty, and strict adherence to the chivalric code. His unbending resolution to face any challenge frequently leads him into perilous situations and conflicts with aggrieved former combatants. Unlike younger, impulsive warriors, he maintains clear-headed dignity even when subjected to extreme disrespect.

King Arthur is the high king of the land and the central figure of the knightly court to which both Perceval and Gawain belong. He recognizes potential in aspiring warriors but maintains a somewhat passive presence, often letting his knights undertake labors on his behalf. He struggles with external threats to his authority but serves as the ultimate arbiter of knightly prestige.

The Fisher King is a mysterious, wealthy monarch who suffers from a severe, debilitating wound. Unable to move freely or participate in active recreations, he finds solace in fishing near his otherworldly castle. He serves as the guardian of highly significant, mystical relics and offers hospitality to wandering knights.

Perceval's mother is a widowed noblewoman who attempts to shield her only remaining son from the violent, tragic world of knighthood. Having lost other family members to martial endeavors, she fiercely protects Perceval in their secluded estate. She serves as his first, albeit frantic, instructor in the rules of basic chivalry.

Sir Kay is King Arthur's royal seneschal and one of his prominent knights. He exhibits a disdainful, mocking attitude toward newcomers, quickly earning Perceval's lasting enmity by slapping a young woman who shows support for the rustic youth.

Gornemant is a wise and hospitable nobleman who takes it upon himself to train an inexperienced young man in the practical and moral rules of knighthood. He teaches discipline, perseverance, and the physical mechanics of combat, officially establishing his pupil's entry into the chivalric order.

Blancheflor is a beautiful young noblewoman facing a dire military siege by a hostile force. She seeks out a champion to save her castle and town from depredation and forced marriage, finding both a defender and a romantic interest in her newfound guest.

Clamadeu is a hostile nobleman who attempts to conquer a neighboring territory through a prolonged siege. He aims to force the castle's lady into marriage but faces unexpected resistance from a newly arrived defending knight.

Anguingueron is a seasoned knight serving the nobleman Clamadeu. He enforces his master's siege but finds himself forced to beg for his life and surrender to King Arthur's court after an unexpected duel.

Guinganbresil is a knight seeking justice for his former master, the King of Escavalon. He rigidly adheres to the demands of chivalry, proposing complex compromises to honor guest-right while maintaining his legal and martial challenge.

The Princess of Escavalon is a young noblewoman who rapidly develops a romantic infatuation with a visiting knight. She fiercely attempts to shelter him from a violent mob, demonstrating loyalty to her guest even under complicated circumstances.

The young ruler of Escavalon unknowingly offers hospitality to the very man his house accuses of treason. He respects the intricate rules of chivalry, honoring the protections of a host even when a guest's true identity comes to light.

The Evil Maiden is a caustic, treacherous young woman who routinely subjects traveling knights to public shame and perilous trials. She carries deep inner pain that manifests as relentless taunting toward those bound by chivalric duty to assist her.

The Holy Hermit is a secluded spiritual guide who provides confession and spiritual instruction. He possesses deep insight into the spiritual and personal failings of his visitors, prescribing penance to help them find moral restoration.

The Red Knight is a hostile warrior who challenges King Arthur and offends the queen. His striking crimson armor catches the eye of a passing rustic youth, leading to a swift and decisive confrontation.

Greoreas is a knight suffering from severe injuries who harbors a deep grudge against the Arthurian court. Though he receives life-saving aid from a passerby, his desire for vengeance over past punishments drives him to opportunistic betrayal.

The Guiromelant is a knowledgeable but vengeful knight who illuminates regional mysteries for a traveler. He nurses an ancient, violent hatred for members of King Arthur's extended family, eagerly seeking opportunities for deadly retribution.

The High Queen is the matriarch of an opulent, mysterious castle populated by widows, maidens, and young men. She oversees a long-awaited prophesy regarding a virtuous knight and desires to maintain her savior's presence within her walls.

Sir Tiebaut is a nobleman whose household is torn apart by a violent dispute over his oldest daughter's hand in marriage. He relies on visiting knights to ride in defense of his honor and his besieged estate.

Meliant de Lis is a proud young knight who attempts to win a lady's hand by militarily dominating her father. His ambition drives him to upend a local power structure until he faces a superior combatant.

The Ugly Maiden is a mysterious visitor who speaks with the authority of a prophetess. She publicly castigates a young knight for his past failures and issues a series of grand chivalric challenges to the assembled court.

The Young Woman in Tent is an unfortunate maiden whose innocent encounter with a bumbling youth leads to a life of forced penance. Punished unjustly by her fiercely jealous partner, she endures severe degradation on the road.

The Proud Knight of the Moor is an intemperate, deeply jealous warrior. Assuming the worst of his partner, he subjects her to cruel abuse and public shame until a wandering knight forcefully corrects his misunderstanding.