The Cardinal of Richelieu is the regent of the kingdom of France. He particularly deals with the collection and the distribution of the finances of the State. He was called by the King Louis XIII who, at the beginning of his reign, was still very young and lacked experience. For this reason Richelieu enjoys a considerable influence at the palace. But it sees it is not enough for him to be only number two of the country. Moreover, he hates Anne of Austria and thus requests Milady to carry out his lowest blows. Rochefort is one of his right-hand men.
D'Artagnan is still a teenager when he leaves his native Gascogne "to go up" to Paris. In the series, he is just 15 years old and he dreams to become a musketeer. He is far from knowing the difficulties he will encounter and the very important missions which will be given to him thereafter. even if he is still impetuous and inexperienced, courage and a strong will help him to achieve his goal. A great sense of honor is also one of his qualities. He is weak against women - the disconcerting Milady or the soft Constance with whom he is very in love. (Source: souslesigne.free.fr)
Suika is the only oni currently living above ground in Gensokyo, with the remainder of the oni race living underground. Just as the folktales say, she has two horns on her head that symbolize her oni heritage, and enough physical strength to throw large boulders single-handedly. Her personality is jolly and quite childish as you would expect from her appearance. She also likes to drink and loves to party with all her heart. Her power in the games is to manipulate density. (Source: Touhou Wikia)
Kino is the lead character in the story and is described as being around 15 years old with short black hair, large eyes and a fearless face. Kino usually wears a black jacket, brown overcoat, white shirt, goggled cap and wide belt with lots of pouches—using special gear depending on the weather or season as necessary. Kino travels with the motorrad, Hermes. The two have a contract—Kino provides the balance, Hermes provides the speed, and together they can travel anywhere they wish. Kino is an excellent marksman with deadly speed and accuracy, and is typically armed with two large-caliber pistols. On the journeys with Hermes, they both try and stay neutral to the situations they come across and avoid getting into other people's business. It is revealed in episode 4 of the anime and the final chapter of volume 1 of the light novel series that Kino is a female. Her name "Kino" is actually the name of the traveler who saved her as a child and caused her to take to her current lifestyle. Her actual birth name is left unstated throughout both the show and LN but there are implications in the anime that it is "Sakura."