Sugata is a young rich man who is betrothed to Wako. He is the master of his family martial arts. He is cool and intellectual, and seems to keep his sadness to himself. He's the candidate to inherit the power of the King Cybody. As a candidate to inherit the power of King Cybody, he's not allowed to leave the island. He hates his own birthday because, on his birthday five years ago, his father told him about his destiny to be bound with the King Cybody power. He is resentful of his fate. His first phase power, the King's Pillar, is so powerful that he falls into a coma after using it to save Wako and the others. He eventually wakes up from coma in Episode 7 but, unfortunately, Scarlett Kiss has used her charming kiss power to manipulate him. However, Sugata managed to break from Scarlett Kiss' control and take over her Peshent to test whether Takuto is worthy enough to protect Wako. After the fight, both of them seem to come into an understanding. From then on, Sugata trains Takuto to be prepared for battle. Recently, Sugata seems interested in Head's painting and often visits him to know the progress of the painting. Meanwhile, Head takes this opportunity to get closer to him.
Keito is 15-year old girl with dark green hair. She is the class representative of Takuto's class. She reproaches Kanako for teasing Takuto during the lesson. She is also the president of Southern Cross High School Science club and often does experiments, sometimes using students as lab rats, as seen with Tiger. She is the leader of third division of Crux Brigade, Bouganveila. Her alias is Ivrogne. She was childhood friend of Wako and Sugata. They also once built a totem pole in the past. She is the east maiden of the island. It is later revealed that Keito has been in love with Sugata since they were kids.
Usamaro is a young demon Rin meets in the Phantom Train subjugation mission. He seems to be sealed in a shrine for an unknown reason. He is looked after by Rin during the festival. (Source: Wikipedia)
One of the Warner Brothers, and the brother of Ner-san. He, along with his brother, was tricked by the makers of Gintama into believing Gintama was a popular anime which would turn into a movie successful all over the world. After the Shinyaku Benizakura-hen movie finished, he and his brother left, stating they would not again cooperate to make a movie out of the show.
Hiruko (�留呼) is the main antagonist of Naruto Shippūden 3: Inheritors of the Will of Fire. He is a missing-nin of Konohagakure who wishes to plunge the world into a Fourth Great Shinobi World War, and then conquer it. Though he was born with no natural special abilities, Hiruko compensates by using the Chimera Technique, a kinjutsu which he developed, allowing him to obtain Kekkei Genkai by integrating the bodies of other ninja with his own. Having already stolen four Kekkei Genkai from the other Great Nations, Hiruko possesses other abilities and physical traits from his victims, such as enhanced strength, and seeks to obtain more. In addition to these abilities, Hiruko and his followers are able to use the Chimera Technique to produce creatures that are literal chimeras, including a large, bird-like monster that molts explosive feathers and wolf-like beasts that attack using appendages resembling tentacles. Through his Chimera Technique, Hiruko has acquired four Kekkei Genkai: Steel Release, Swift Release, Dark Release, and Storm Release and also an Unnamed Three-eyed technique. It is unknown if he acquired more. In addition to this he also has a section on the palm of his hand where he can literally "absorb" the technique being thrown at him. (Source: Narutopedia)