Cusack is a tall and very muscular man with hot pink hair that has bangs extending to cover his right eye and end in a long ponytail braided. He also sports a very long mustache that reaches his pectoral section and a small goatee. His demon mark consists of two black arrows extending below his left eye and a spot of darkness on his right shoulder that extends further around his arm. His attire consists of a skin tight white vest shirt with no sleeves, black pants and high knee boots. On his forearms are detached sleeves. Cusack is very confident in his abilities, asking for permission from zeldris to exterminate anyone. Like chandlers attachment to meliodas. Cusack is also very much dependent to his student, zeldris. Expressing the utmost confidence and loyalty to the Demon king’s second son. His personality: cusack is shown to be quite critical towards demons, Cusack loves and protects Zeldris above all else, treating him with extreme fondness and calling him his lord despite Zeldris often finding his physical affection and doting behavior annoying. Arrogant and Confident: He is very sure of his own massive power, easily looking down on enemies and eagerly volunteering to wipe out strong foes like the Seven Deadly Sins and other elite warriors

Chandler is a short man wearing a set of clothes and rings with elaborate designs. He has green spiky hair, beard and mustache. His demon mark is on the right side of his head, with two spiked circles connected by a line cutting through his right eye. When he opens his mouth, he shows himself to have a full set of fangs for teeth.. 150kg of chubbiness and slightly dense muscle, meliodas’s mentor. His personality: His high respect for Meliodas is as such that he berates anyone else who speaks lowly of Meliodas and would even cry crocodile tears if the subject of his student was brought up. His attachment to the Demon King's first son is shown when he immediately flew to Meliodas' location at the Boar Hat when Zeldris mentioned the Seven Deadly Sins were arriving and threatened to kill any obstacles in his way of rescuing his student. However, despite his zealous devotion, he is shown to be negotiable as when he realizes that Meliodas and Elizabeth are with the Seven Deadly Sins, he offered to let the rest leave unharmed if they hand the former two over as he had no interest in them unlike the Demon King. Having lived through many years and battles, Chandler is also quite intelligent and perceptive, able to instantly recognize various magical attacks and motives simply by observing his enemies.

Meliodas shrouds himself in darkness. This takes the appearance of a vest-like coat that only covers his armpits, which flares out at ragged ends, and has a very high collar which is spread wide. He also has two wrist bands, made up of the same darkness as the rest of his clothes. His pants are connected to his feet look like a bird's talons, but with five toes. His personality consists of a calm and laid back demeanor, sometimes a bit naive and often isn’t taken seriously unless his loved ones are threatened, he wears a serious expression or a goofy expression.. depending on his mood, he could be happy, cheerful.. and nice one moment.. the next he could be trying to kill you for threatening someone he cares about.

Zeldris is a short yet muscular young man. He greatly resembles his brother Meliodas, though with a few slight differences. His hair is spikey black and grows counterclockwise to Meliodas' and they both have the same demon mark, except his is over his left eye instead of his right. Zeldris can change his Demon Mark to become similar to his older brother's second[8] and full demon marks.[9] His attire is a crimson bodysuit and has a white insignia in several places. The suit has an open collar and exposes his chest. He has silver gauntlets and carries his sword with a strap on his hip. Zeldris is very calm and collected, seemingly not easy to anger. Like his brother, Meliodas, Zeldris appears to have a good commanding and leadership skills. However, Zeldris has limits in his patience and, although he rarely shows it, is not above mocking and showing negative responses at the ones he had an antagonistic relationship with.

Estarossa is a very tall and muscular man and wears a yellow (blue in the anime) longcoat with gold (silver in the anime) gauntlets and boots. He bears a great resemblance to the wanted poster of Meliodas. He has silver hair and noticeable facial stubble. He also has the same demonic mark as Meliodas and Zeldris but unlike Meliodas, it is above his left eye similar to Zeldris. Estarossa seems to have a normally relaxed demeanor. When Meliodas appears and threatens the Ten Commandments, he doesn't seem overly bothered by the situation. Beneath this aloof exterior, however, he has a very sadistic and cold side. He cites Meliodas' former ruthlessness as one of the traits he used to admire most about him. It's impossible to read what he's truly thinking or feeling... But what worries me the most is that inexplicable feeling of unease and discomfort that radiates from him