Characters who appear in the two entries of the Fuun Series (Savage Reign and Kizuna Encounter)
The main protagonist of the series. A young Japanese man who happens to be a practitioner of Fu'un Ken: a special type of fighting style that combines karate with the mastery of the boomerang. Hayate is best known for his brash nature and his loud voice.
A beautiful young female French gymnast who practices her family's gymnastic arts with Aikido. Her father, Jeanrick had arranged for her to be married to King Leo so that their family's gymnastic arts could be secured for the future. Carol, who isn't too happy to know of this, is determined to break away her engagement to King Leo.
An American pro wrestler who is well-known and loved by the fans of the SWF (Southtown Wrestling Federation). Max suspects that King Leo is his long-lost older brother and thus, he embarks on a personal mission to find out on whether or not his suspicions are true.
An American obese police officer whose ruthless methods in apprehending criminals makes him a dangerous threat to those who want to commit crime. Upon learning that his young daughter, Canbee is gravely ill with a life-threatening disease, Gordon enters into the tournament in order to help secure the prize money needed for her expensive surgery.
An old Chinese man who apparently holds a past grudge against King Leo. His cap was given to him by a man known only as the "Legendary Wolf" when he was young.
A mysterious red ninja warrior who works for a terrorist organization called the Jaguar. Alongside with his brother Mezu, Gozu seeks to eliminate King Leo in an attempt to avenge Kazuo, who happens to be the slain brother of Gozu and Mezu.
A mysterious blue ninja warrior who works for a terrorist organization called the Jaguar. Alongside with his brother Gozu, Mezu seeks to eliminate King Leo in an attempt to avenge Kazuo, who happens to be the slain brother of Gozu and Mezu.
Marco "Joker" Bariadrid
A Spanish clown-like criminal who happens to be the leader of a violent street gang known as the Looly Po Po. Joker seeks to make himself and his gang the most well-known and feared throughout Jipang City and the rest of the world.
A young Russian genius who has an IQ of 600. Upon developing a Super Suit with a Super Shield, Nicola decides to participate in the tournament in order to test out the very depths of his own creations.
A mysterious warrior whom King Leo had hired in order to impersonate him so that he can help throw off his enemies. Despite doing his job quite well, King Lion wishes to do much more than just be an impersonator and that he seeks to eliminate King Leo himself so that he can take his place.
The main antagonist of the series who happens to be a legendary fighting champion. King Leo organizes and sponsors The Battle of the Beast God tournament in order to find an opponent who could easily give him a much-needed challenge.
A young amnesiac woman who leads a strong resistance force against King Leo. When her young brother and a couple of her friends are captured by King Leo, Rosa embarks on a rescue mission to help save them while fighting against King Leo.
Kim Sue Il
A young Korean detective who happens to be an expert in Taekwondo while wielding a staff. Kim is determined to complete his latest case, which is to find and arrest Joker while disbanding his gang, the Looly Po Po.
An unknown yet sadistic ninja warrior who happens to be the leader of the Jaguar terrorist organization. Not much is known about Jyazu and his past history.