They're just awesome. Enough said.
(Can you tell mei is getting tired??)Ginko (Mushishi) Memento
[spoiler]Ginko's unusual white hair and green eye color is the result of an incident involving a mushi that occurred when he was a child. No explanation is given as to why his rather modern clothes do not seem to match the time period reflected by all other characters. Ginko is a rare person that attracts mushi, and thus the reason he wanders constantly. Staying in one place too long will gather a potentially dangerous amount of mushi. He also smokes constantly in order to keep mushi away. In terms of personality, Ginko is rather laid back, but can be very serious when it comes to protecting people from mushi. He also often stresses that the mushi are not evil, but merely trying to survive like everyone else.[/spoiler]Kyon (The Melancholy of Haruhi Suzumiya) Memento
[spoiler]A cynical and apathetic high school student, Kyon is the sole voice of reason in the SOS Brigade, and he sometimes intervenes when Haruhi behaves too erratically. Much to his irritation, this responsibility is his alone, since the other members passively go along with Haruhi's schemes. Despite his apparent discontent and his continued complaints, Kyon remains with the SOS Brigade and Haruhi, even though he is not required to do so. He feels certain that Haruhi should learn that not everything can go her way. It is because of this that Kyon develops a bond with Haruhi, the potential start of a romantic relationship.[/spoiler]L (Death Note) Memento
[spoiler]L is the world's top-rated detective, tasked with tracking down and arresting Kira, and Light's nemesis. His disheveled appearance masks his great powers of deduction and insight. L has many quirks, such as sitting in an odd manner and snacking on sweets in the middle of meetings. He often takes drastic strategies to confuse and force his opponents, and on several occasions he has willingly disclosed several of his weaknesses to Kira at the risk of his own life in the hopes that he would lure him into a trap.[/spoiler]Yuu Kanda (D.Gray-man) Memento
[spoiler]An 18 year old Exorcist from Japan. He can recover much faster due to a mysterious tattoo above his heart (which looks like a Hinduism seal), and it is related to a flower sealed in a hourglass that was said when wilted, will kill Kanda with it. His purpose in life is to find "that someone"; until then, he will never allow himself to die... He seems to be able to withstand the blood of Akuma, most likely due to the tattoo above his heart. The hourglass and flower is said to be his only personal possession. He was grudgingly partners with Allen in Allen's first mission. [Despite his feminine appearance] he has a rough tongue, foul mouth and a cold manner, and tends to say "Tch" a lot. Yu is Kanda's given name, but he dislikes being called that... His anti-Akuma weapon is a black katana, "Mugen", which turns silver when activated.[/spoiler]Tamaki Suou (Ouran Koukou Host Club) Memento
[spoiler]The usual instigator of all of the Host Club's antics, Tamaki is prone to dramatics and often acts without thinking or overreacts to trivial things; the other members of the club, particularly Hikaru and Kaoru, often take amusement at his expense. However, they also almost always follow his lead, and staunchly support him when it's needed. Despite his foolish behaviour, Tamaki is very generous and easily moved by the distress of others, even strangers. Once aware of others peoples' problems, he will do all he can to help them and "ascertain justice". He often makes elaborate plans or "strategies" to fix many solutions... For all his immaturity and silliness, Tamaki proves to be a naturally excellent student, routinely placing second in his class (behind Kyoya) without making any particularly great effort towards studying. He is a talented piano player, and unlike the other members of the Host Club (such as Kyoya and the Hitachiin brothers) there is surprisingly little artifice in his treatment of the club's customers.[/spoiler]