Arthur is a curious and humble young boy adopted by Sir Ector and raised in the Forest Sauvage alongside his foster brother, Kay. Unaware of his true lineage, he is a dedicated pupil to his eccentric tutor, Merlyn, who instills in him a deep appreciation for the natural world and justice. He is introspective and deeply desires to correct the lawlessness of the land by establishing a new code of chivalry.

Lancelot is a highly skilled and devoted knight who joins Arthur's Round Table. He describes his own physical appearance as remarkably ugly, which drives him to overcompensate through intense martial training and strict adherence to chivalric codes. Deeply religious and conflicted, he desires to perform miracles but struggles with his earthly passions.

Guenever is the Queen of England and a central figure at Arthur's court. She is an intelligent, passionate, and complex woman who finds herself torn between her affection for her husband and her intense attraction to his finest knight. She attempts to support Arthur's vision for Camelot while managing her own desires and the political expectations placed upon her.

Merlyn is an eccentric, disheveled wizard who lives backward in time, granting him knowledge of the future but confusion about the present. His cottage is a chaotic mix of musty books, living magical creatures, and anachronistic objects. He takes Arthur under his wing, using unconventional hands-on methods—often involving transfiguration into animals—to teach the boy about society, power, and morality.

Mordred is the son of Queen Morgause, raised in a faction that harbors deep resentments against King Arthur's lineage. He is physically frail compared to the grand knights of Camelot, fueling his insecurities and his bitterness toward the Round Table's ideals. He actively looks for ways to undermine the unity of Arthur's court by exploiting the personal flaws of its members.

Sir Ector is a pragmatic, well-meaning English lord who raises Arthur alongside his own biological son. He manages his estate with a mix of traditional authority and genuine care for his dependents. While he does not fully understand the magical or grand political forces shaping the world, he provides a stable, grounding environment for Arthur's early years.

Kay is Sir Ector's biological son, raised to inherit his father's estate and title. He is proud, sometimes arrogant, and eager to prove himself as a proper knight. Despite his occasional cruelty toward his foster brother, he is capable of bravery and maintains a familial bond with Arthur as they grow up together.

King Pellinore is a bumbling, well-intentioned knight who has spent years chasing the elusive Questing Beast. He represents a more comedic, old-fashioned version of knighthood, complete with endless, seemingly pointless quests. Despite his comic nature, he is sincere, friendly, and becomes a loyal supporter of Arthur.

Queen Morgause is the sister of Morgan le Fay and the wife of King Lot. She is a practitioner of dark magic who raises her sons with a fierce hatred for King Arthur's family due to past wrongs committed by Uther Pendragon. She is a distant and demanding mother who uses her children and others to further her own vendettas.

Gawaine is the eldest son of Queen Morgause and a prominent member of the Orkney clan. He is raised on tales of blood feuds and grows up to be a fierce, hot-tempered knight. Despite his violent tendencies and clan loyalty, he possesses a basic sense of honor and attempts to navigate the rules of Arthur's new court.

Agravaine is one of Queen Morgause's sons, characterized by his volatile emotions and dark disposition. He is deeply affected by his mother's neglect and manipulation, which manifests in a cruel streak and a tendency toward violent jealousy.

Gareth is a younger son of the Orkney clan who distinguishes himself from his more volatile brothers. He possesses a gentler nature and a stronger inclination toward genuine chivalry, often acting as a peacemaker between his aggressive siblings.

Elaine is the daughter of King Pelles. She becomes deeply infatuated with Lancelot after he rescues her. Determined to bind him to her, she relies on deception and magic to achieve her goals, creating lasting complications for Lancelot's relationships and spiritual standing.

King Pelles is a regional ruler and the father of Elaine. He is knowledgeable about prophecies and genealogies, offering Lancelot sanctuary and friendship while hoping to secure a legendary lineage for his family.

Sir Bors is Lancelot's cousin and a deeply chaste, pious knight of the Round Table. He is rigorously devoted to his religious principles, often facing extreme moral dilemmas during his quests that test his commitment to his faith over his familial bonds.

Often misnamed "Robin Hood," Robin Wood is a famed outlaw and skilled archer who leads a band of resistance fighters in the forest. He resents the Norman occupation but proves to be an honorable ally, helping young Arthur learn about the wild forces outside the castle walls.

Morgan le Fay is a powerful enchantress, queen of the fairies, and sister to Queen Morgause. She poses a dangerous supernatural threat to the human characters, using magic to entrap knights and local villagers in her whims.

Sir Grummore is a hearty, traditional knight who frequently visits Sir Ector's estate. He often teams up with King Pellinore, participating in comical schemes and demonstrating the less serious, more physical side of medieval knighthood.