A legendary sacred sword with eyes and a mouth on the crossguard, capable of speech. He can float and move on his own when near Sonic. First person: I (Watakushi, gentlemanly). His personality is nagging and strict. He is in constant conflict with Sonic. He berates Sonic at every opportunity, calling him a "Fool!" His nagging is also intended to mold Sonic into a proper knight. He insults Sonic by calling him a "Knave." Sonic, in turn, calls him "Dull Blade" or "Sir Sacred Sword." He is the legendary sacred sword that sleeps in a stone floor under a giant tree deep within Misty Lake, said to choose his own wielder. Homing Spin Slash is extremely useful. Since Aerial Attacks have invincibility frames, the combo of Aerial Attack into Homing Spin Slash is effective in close-quarters combat. Soul Surge results in high-speed movement if no enemies are in range, and enters an attack stance once an enemy is within range.

One of the Knights of the Round Table. A high-spirited knight with absolute confidence in his own speed. He is proud, hates losing, and refuses to show any uncool side to others. He specializes in agile martial arts and uses his favorite twin swords to corner opponents with high-speed swordsmanship. A humanoid hawk covered in emerald green and dark emerald green feathers. He has a golden beak and a mohawk hairstyle. He is considered the fastest among the Knights of the Round Table. He wields two twin swords that look like a combination of a folding fan and a battle axe. First person: I (Ore-sama, arrogant). A semi-regular character.

The granddaughter of the great wizard Merlin and a court wizard serving King Arthur. She summons the Knight of the Wind, "Sonic," from another world to save the kingdom, which is being devastated by King Arthur, who has been consumed by darkness through the magical power of Excalibur's scabbard. She rarely travels with Sonic, perhaps because her face is well-known. She is fair-skinned and slender. Magenta-colored hair. Large blue eyes. Long, pointed ears. First person: I (Watashi). Real Name: Merlina Alias: Merlina the Wizard Gender: Female Species: Human (Half-elf?) Ability: Magic She is actually the mastermind behind everything and the final boss. The King Arthur of this world is an illusion created by Merlina's grandfather, Merlin, and never existed from the start. Through her ability to see the future, she knows the tragic fate the kingdom is destined to follow. She summoned Sonic to the other world not to save the ruined world from King Arthur or the underworld's undead, but to use him to obtain Excalibur's scabbard from King Arthur and build an eternal, unchanging kingdom with its power.

Gender: Male Eyes: Yellow Attire: Body armor A monarch whose heart was eventually corrupted by evil. Tall and clad in majestic, deep gold armor, he exudes an intimidating and terrifying presence. Weapon: Deathcalibur

The ultimate and strongest knight, but he has no sense of humor. He has a cool and calm personality. He also deeply values the code of chivalry. He possesses a calm, composed, and brilliant mind, and is a man of few words. He is a humanoid hedgehog covered in black fur. His eyes are red. Weapon: Arondight A magical sword said to never lose its edge. First person: I (Boku, polite/reserved) Second person: You (Kimi / Omae / Kisama) Characterized by calm, definitive speech patterns using "da" or "dana." He and Gawain are comrades-in-arms but also rivals. "Then let us go! Knave the Hedgehog!"

A humanoid echidna. A single-minded and serious personality. A member of the Knights of the Round Table serving King Arthur. He holds the title "Knight of the Sun." His loyalty to the King is firm, but he is equally stubborn. He carries the legendary twin swords, Galatine. Most of his body is covered in red fur, and his eyes are purple. In combat, he specializes in powerful swordsmanship. He and Lancelot are comrades-in-arms but also rivals. "Shut up, shut up, shut up!"

The only female member of the Knights of the Round Table, known as the Knight of the Grail. Serious with a strong spirit of chivalry, she is a loyal person who shows respect to those she acknowledges. Favorite food: Lollipops A humanoid cat with lavender fur. Golden eyes. Noble yet powerful. She creates and manipulates fire at will. Weapon: Laevatein First person: I (Watashi). "H-how can I say such a thing!" "Sonic... just what kind of guy is he..."

One of the Knights of the Round Table. A silver knight with powerful psychic abilities. His skills rival those of Lancelot. He flies using Levitation and restrains opponents with Psychokinesis. He is a humanoid hedgehog with silver fur. Golden eyes. First person: I (Ore, casual) Second person: You (Anta, familiar) He has a strong sense of justice and a straightforward, kind personality that never loses hope even in desperate situations. A semi-regular character.

The owner of the blacksmith shop in Camelot Castle. Friendly and kind. Nickname: Smithy Being a skilled blacksmith, he mentions having heard the name Caliburn somewhere before. He uses a slingshot and small bombs as weapons and can fly using his two tails. (His BGM is an arrangement of Tails' theme song "Believe In Myself") Eyes: Sky blue A young anthropomorphic fox boy. His fur is amber-colored. First person: I (Boku, soft/polite) "Welcome, Sir Knight!"

Eyes: Vivid green Nickname: Lady of the Lake An anthropomorphic hedgehog covered in pink fur. A calm and wise woman. A lady who lives quietly deep in the forest of a village for the poor who cannot live in the castle town; her speech is that of a refined lady. A crucial figure who knows the techniques to seal the power of the underworld and the true nature of Excalibur.