Allen is the main hero of the series. He was abandoned by his biological parents because of the supposed "deformity" of his left arm (which was later revealed to be caused by his Innocence). He was eventually found and adopted by a traveling performer named Mana Walker on Christmas Day. Some time later Mana died, and Allen, tormented with grief and manipulated by the Millennium Earl, turned Mana into an Akuma, hoping that his beloved surrogate father would be fully resurrected. But the Mana Akuma cursed Allen and sliced through his left eye, leaving the "Pentacle" — the mark of the Akuma — which scars the left side of his face. This enabled his left eye to see the souls trapped within the Akuma from then on. It was at this same moment that Allen's left arm first invoked as an Anti-Akuma weapon, which instinctively destroyed the Mana Akuma. During the course of this traumatic event, Allen's hair turned from brown into a stark white.

Although she appears to be a normal, cute, human girl in Chinese-style clothing, she actually belongs to the Yato Clan,
one of the strongest and most bloodthirsty of the Amanto races. The Yato are said to have "transparent" skin
that is highly sensitive to sunlight, so Kagura carries a purple parasol at all times.
The parasol is also the Yato clan's weapon of choice; Kagura's is bulletproof and fires bullets from its tip.
Because of her Yato blood, she is super-strong and can stop a speeding motor-scooter with one hand.
Although stronger than most humans, she cannot control her strength perfectly.
Her super-human strength makes her extremely bad with pets. Most of her pets,
with the exception of Sadaharu, have met with an untimely demise by her hands.

Mirajane is the cover girl or drawing point of Fairy Tail. She is 19 years old, a former S-class mage, and the older sister of Elfman. When Mirajane was an S-class mage, she was known as "The Demon." However, due to a past incident involving the death of her younger sister, Lisana, Mirajane somehow lost much of her magical ability and her will to fight. Given the recent event of Elfman regaining his lost abilities and Mirajane's increased confidence, Mirajane may someday regain her abilities and move forward with her life.

The protagonist. At the beginning of the series, Sakuragi was a slacker, always trying to ask girls out but getting constantly rejected (the 50th rejection occurring at the start of the series). He then met Akagi Haruko, with whom he fell in love immediately. This passion led to him joining the Shohoku basketball team. However, as a complete beginner, he was not able to keep up with the rest of the team at first despite his physical attributes (great height, athleticism, stamina, speed and leaping ability). He regards himself as a genius though, with self-confidence that borders on arrogance. His most recognizable trait is his red hair, though he shaves his head as reparation for an error that led to the loss against Kainan.

He is the king of Sindria and the leader of the Alliance of the Seven Seas. He was 14 years old when he first captured a dungeon, the first dungeon "Bael". Since then, he had sailed the seven seas and captured seven dungeons. He is known as the "Legendary Dungeon Capturer" being the master of seven djinn. He is also commonly known as "High King of Seven Seas". His nickname is Sin. His name is based on "Sinbad the Sailor".