Elizabeth is the third princess of the Kingdom of Liones and a companion to the Seven Deadly Sins. She is kind and compassionate, always striving to help others—even at the risk of her own life. She never loses hope and believes in the goodness of people. She possesses the power of the Goddess, capable of healing wounds, creating barriers, and wielding light magic. Her bond with Meliodas is one of the pillars of the story.

Meliodas is the leader of the Seven Deadly Sins, bearing the Dragon's Sin of Wrath. He is cheerful and energetic, often joking around and acting like a child, though he knows when to be serious. He is one of the most powerful members of the Seven Deadly Sins; his Sacred Treasure is the "Demon Sword Lostvayne," a dagger featuring a blade with five distinctive holes and the dragon symbol on the hilt. His primary ability is *Jitsuzō Bunshin* (Physical Clone), which allows him to create up to four clones that split his base power.

Diane is the giant of the Seven Deadly Sins, representing the Serpent's Sin of Envy. She is cheerful, kind, and very protective of her friends, though she can easily become angry when someone threatens them. She is a 29 feet tall giant. (9 metres) She is one of the most physically powerful members; her Sacred Treasure is Gideon, a massive war hammer. Her primary ability is Creation, which allows her to control and shape the earth at will.

Ban is the Fox's Sin of Greed and is known for his immortality, which allows him to survive even fatal wounds. He is carefree and confident, and loves to taunt his enemies, though he always protects the people he cares about. His Sacred Treasure is the Sacred Staff Courechouse, a three-section staff. His primary ability is Snatch, which allows him to steal physical strength, speed, or objects from his opponents.

Gowther is the Goat's Sin of Lust. He is very calm and logical, displaying little emotion due to his nature as a doll. He always attempts to understand human feelings. His Sacred Treasure is the Double Bow Herritt. His primary ability is Invasion, which allows him to manipulate the memories, emotions, and minds of his targets.

King is the King of the Fairy King's Forest and the Grizzly's Sin of Sloth. He is calm, kind, and very protective of those he holds dear, though he can appear insecure at times. His Sacred Treasure is Chastiefol, a spirit spear capable of shifting between multiple forms. His primary ability is Disaster, which amplifies or worsens the natural state of anything he touches.

Merlin is the Boar's Sin of Gluttony. She is intelligent, calm, and extremely curious, dedicating her life to the study of magic and knowledge. Her Sacred Treasure is Morning Star Aldan, a crystal sphere that amplifies her magic. Her primary ability is Infinity, which allows the spells she casts to remain active indefinitely without consuming additional magic.

Escanor is the Lion's Sin of Pride. He is polite and humble at night, but with the rising of the sun, he becomes extremely confident and proud thanks to his immense power. His Sacred Treasure is the Divine Axe Rhitta, capable of storing and releasing solar energy. His primary ability is Sunshine, which boosts his strength, speed, and magic as the sun rises, reaching his peak power at noon.