Rimuru Tempest Features a neutral appearance that can look like a lovely beautiful girl or a young handsome boy, with long silver-blue hair and golden eyes. Possessed skills: "Azathoth, God of Void" and "Shub-Niggurath, Lord of Harvest".

Veldora Tempest The one who gave Rimuru his name. One of only four True Dragons in this world, the highest-ranking existences and Special S-rank Catastrophe/Calamity-level monsters. Known by the epithet "Storm Dragon." Originally a giant black dragon, he gained a human form after being resurrected using one of Rimuru's clones. His human appearance is a massive and mannish version of Rimuru's human form, with a wild look and blonde hair. Possessed skill: "Nyarlathotep, Lord of Chaos".

Benimaru A handsome man with crimson hair and eyes, and jet-black horns. Possessed skills: "Generalissimo" and "Amaterasu, Lord of Blazing Sun".

Shuna Has light pink hair and horns like white porcelain. Possessed skills: "Analyst" and "Creator".

Shion Has purple hair and a horn like obsidian. Possessed skill: "Susanoo, Lord of Tyranny".

Noir (Primordial Black) Strictly speaking genderless, but takes a male form. Dressed as a butler, he has jet-black hair with red and gold streaks. His eyes are golden with red pupils, and the sclera is dyed black. He has a beautiful appearance that is very close to human. Possessed skill: "Azazel, Lord of Temptation".

Blanc (Primordial White) A beautiful woman with white hair and red eyes. Possessed skill: "Belial, Lord of Death".

Violet (Primordial Purple) Characterized by short purple hair that doesn't reach her shoulders, tied in a ponytail. First person: I (soft/boyish). Possessed skill: "Samael, Lord of Deadly Poison".

Jaune (Primordial Yellow) Takes the form of a girl with dazzling blonde hair and blue eyes. Possessed skills: "Abaddon, Lord of Destruction" and "Sandalphon, Lord of Execution".