This article covers the characters of a South Korean webtoon Tower of God ().
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Irregulars Twenty-Fifth Bam/Jyu Viole Grace
Twenty-Fifth Bam (; literal translation: Twenty-fifth Night) is the protagonist of Tower of God. Bam is the latest Irregular to enter the Tower, but because of his young age and naiveté, his abilities don't resemble those that previous Irregulars are known for. In the story, Bam enters the Tower in search of his best friend Rachel, the only person who visited him and cared for him in the years of isolation that he spent in a cave underneath the Tower. After entering the Tower, he is told that all the answers that he seeks will be answered if he climbs the tower, though he is immediately presented with a seemingly impossible and deadly test. Bam succeeds, and is allowed to move onto the second floor, where all would-be Regulars start their ascension. Throughout the webtoon, Bam makes several friends among the candidates, and together they pass the many tests of the floor. Bam returns in Tower of God: Part 2 – The Return of the Prince, which takes place six years after the original story, using the alias Jyu Viole Grace (). In this story, Bam is under the control of the infamous anti-Jahad group FUG, forced to cooperate to keep his old teammates safe. But then, not long after, his old teammates, including Khun, found out that he was alive, and was Jyu Viole Grace. They set out a plan to free Bam from FUG, which takes place in the Workshop Battle, and it was successful. After that, Bam and his teammates goes through a series of adventures on the Hell Express. Bam returns again in Tower of God:Part 3, taking place a few years after the Battle of the Last Stop. Ha Jin Sung, Bam's teacher in FUG, was caught by Kallavan, who is in control of a unit in Jahad's army. To rescue Ha Jin Sung, Bam needs help from the King of the Dogs, Baylord Yama, a FUG slayer, and him and his teammates set out on another adventure in the Cage, where the Dogs live. Rachel
Rachel () was Bam's best friend until she entered the Tower and became a regular (but that was only what Bam thought which is proved in the later half of the webtoon). She desires to see the stars in the night sky at the top of the Tower and is determined to reach it by all means. This wish comes from her fear of the darkness of the night. Later in the webtoon, she is wounded and pretends to be heavily crippled, at which point Bam declares that he will "be her legs" and help her continue climb the Tower. In a later test, she decides to betray Bam and attempts to kill him. She convinces his friends that Bam died protecting her and profits from the pity of the group that wants to continue the task Bam had started: carrying her to the top of the tower, then after six years Bam finds out Rachel is part of FUG. She then goes with Khun Aguero Agnes and climbs the tower. She and two new teammates in their new team decide to betray the group. They kill one and injure another one from their team then run away. She soon meets Bam again, only to push him away yet again. She meets a woman named Yura Ha on the train and they quickly become friends. She promises to show Yura the stars in return for helping her. She decides to help a former FUG slayer named 'White' to use him for her own purposes. Phantaminum The strongest and most dangerous being of the entire Tower. He is a highly enigmatic person, ranked first in the Tower. One day, Phantaminum breached Jahad's highly fortified citadel and single-handedly massacred most of its inhabitants, all of them High Rankers. Phantaminum vanished and since then hasn't reappeared. Most survivors of Phantaminum's rampage were deranged with fear. Since then he was regarded as the mightiest being of the Tower, capable of destroying it should he wish it. According to SIU, Phantaminum is an Axis user, a being who can warp reality around themselves, and his power far surpasses that of Enryu. Enryu Enryu is a mysterious Irregular and currently the second in rank. He is the first Irregular to enter the Tower during the reign of Jahad. His nickname is Red Tower because Shinsoo turns bright red in his presence. Enryu is a tall and handsome young man with red hair and eyes. His abilities are greater than the Floor Guardians and are considered heretical, breaking the laws of the Tower. He is rumored to be capable of creating life from Shinsoo and control at least 9000 baangs of Shinsoo, the greatest number recorded in the history of the Tower. Enryu is extremely powerful, capable of ravaging an entire floor and slaying its Guardian. His famous ability Red Rain can shroud the sky with an untold number of powerful spears made of red Shinsoo and strike them down on his opponents. One day, Enryu suddenly appeared at the 43rd floor, and warned its inhabitants that he will kill anyone who believed in the fake king Jahad. He then proceeded to slaughter Jahad's fanatics. The Floor Guardian of the 43rd floor was furious and fought him, but even he was no match for Enryu and was killed. Enryu is the only one in the tower who was able to kill an administrator, a feat impossible even for Jahad. Enryu disappeared and since then his location is unknown. He left behind a huge red fragment, called the Thorn. It is rumoured that the Thorn is the weapon destined to kill Jahad. It is speculated that Enryu has a connection with Arlene Grace, the object of Jahad's affections, wife of V and the mother of 25th Bam. Urek Mazino
A ruthless irregular currently the fourth in rank. As the strongest currently active Ranker, as an irregular, and as one of the founders of the Wolhaiksong, Urek Mazino is one of the most influential people inside the tower. His nickname is Ray Barracuda. Ray refers to his combat style, in which he fires Shinsu at the speed of light. Barracuda is the name of the most aggressive fish in the tower. Urek is a tall and muscular young man with short blonde hair under a white baseball cap, and fiery red eyes. On his back, a tattoo of a tree with 7 pairs of wings (the symbol of Wolhaiksong). He is a respected by every men. However, he is disliked by every woman he meets. Ha-Yuri-Jahad said: "He is the best man to fight with, but the worse man to live with." The most famous quote of Urek is: "What fun would it be to become the king of the tower? Tell Jahad to keep his boring seat. I will get out of the Tower. Outside the Tower, there exists a vast world, rolling skies stretch endlessly, and countless stars illuminate the darkness. A place that is a thousand times—no, a billion times wider and freer than the tower. Once you imagine that such a world exists, don't you think all those things you want are all so trivial?" Although his main position is fisherman, he excels in every other position better than almost all of the rankers. He beats everyone in agility, strength, Shinsu control, etc. After entering the tower, he passed all of the tests faster than any other ranker.
Regulars Khun Aguero Agnes
Khun Agnes () is from one of the 10 Great families that first climbed the tower, and the direct son of High Ranker Khun Eduan. He meets Bam in the first test of the second floor, and deems him interesting enough to accompany and aids him while they climb the tower. He and Rak quickly become Bam's closest friends. He is usually in the Lightbearer position, but he has been shown to be capable of basic close combat as well when the situation calls for it. His name is a reference to the Argentine former footballer Sergio "Kun" Agüero. Rak Wraithraiser
Rak Wraithraiser () is a large, powerful, and very confident spear bearer. He unwillingly teamed up with Twenty-Fifth Bam and Khun Aguero Agnis early in the story, and he quickly became attached to them during the following tests. Due to his reptile-like features, he is sometimes referred to as "Alligator" or "Gator" and even "Crocodile". Rak refers to his friends and people he meets as "turtles" of different colours and features (ex: black turtle, blue turtle, crazy turtle); the term by which he also earnestly addresses his "prey". Rak is able to change his size so that he is smaller and convenient to walk around because he is a Compression Lisensor which gives him the ability to shrink his size at will so he can move around the Tower more easily. On the hidden floor in an encounter with the data of Khun Eduan (the head of the Khun family) Rak learns that he has the power to control rocks/stone and might be a part of/a descendant of a native species in the tower until the king of the tower hunted them all down and killed them. Ja Wangnan
Ja Wangnan () is another primary protagonist introduced at the beginning of part II, which initially focuses on him before spreading attention to the other main cast again. On the 20th floor Wagnan is initially selfish and willing to resort to trickery to pass the test to the 21st Floor, as he has been stuck on the 20th floor failing the same floor advancement test repeatedly ever since arriving on the 20th floor which results in him falling into financial debt with loan sharks; but later in his last chance test he starts to display his inner caring side and is shown to be sympathetic and forgiving to people who similarly used trickery against others to survive. His goal is to become the King of the Tower. He is blond haired, has red protrusions on the back of his head, and has a red ring with the symbol of Zahard (also known as Jahad in other translations) inscribed on it, a ring that Karaka, a FUG slayer wears. He has not displayed any special abilities with shinsu or martial arts, but was able to survive a fatal pierce through his heart in the Workshop battle when Beta tried to stop him from summoning Baam later showing a full recovery, which garnered suspicion and interest from the few people who took notice of this. He is also referred to as Prince of the Red Light district. Wangnan wishes his horns would grow. "Wangnan Jah" read backwards in Korean means "I am the prince." White White was the 10th of eleven slayers in FUG. He belongs in the Arie family, one of the '10 great families'. His body has been lost, and only his name and souls remain. He is good at using swords, and has white hair, just like all the other members of the Arie family. His height varies depending on the size of his power. He often competes with Jue Viole Grace, the new slayer candidate of FUG. White has been interested in spells or dangerous magic since ancient times, especially those that needed human sacrifice. Because of that, people in the tower feared him. The cruelest spell he could use was used at a hidden place in the tower. He caused war between two countries, and cheated them so that they would pray for his help. Many people died for him, and he ate the souls of these people, which made him stronger. This spell supposedly killed more than one billion people. Finally, a 'princess of Jahad' suppressed him and he lost almost all of his power. After that, he went into the hell train to regain his lost power. He manipulated people in the train to kill each other. One of the people in the train, Roen, made sacrifices to stop White, and he has been sealed for 600 years.