Soichiro Yagami

Soichiro Yagami (夜神 総一郎 Yagami Sōichirō^?) is Light's father and a police officer that initially leads the Kira investigation team that later joins with L. He is voiced by Naoya Uchida in the Japanese anime and Chris Britton in the English dub. When L begins to suspect Light of being Kira, Soichiro is unwilling to believe his son would be capable of such a thing. After L's death, he is sent to retrieve the Death Note stolen by Mello by obtaining Shinigami Eyes and infiltrate Mello's hideout, though Light had planned for Matsuda to fill the role.^[3] He retrieves the note and learns Mello's real name, but is unable to kill him, and is instead fatally wounded. Because Light has given up his Death Note, making his lifespan visible above his head, Soichiro dies believing that Light is not Kira. In the film, Soichiro, portrayed by Takeshi Kaga, survives- discovering that Light is Kira and holding him as he dies- but chooses to hide the knowledge from his family.

Soichiro was envisioned as an "honest police officer with a strong sense of justice" that the reader "would have to feel sorry for everything he has to go through." Though Ohba did not want Soichiro to die, the writer felt that he had to because the character's continued existence would have interfered with too many of the already set up plot points. He did not want Light to kill him, so he wrote Soichiro's death as an accident.^[3] Obata designed Soichiro to look like a "stereotypical detective", retaining the mustache and glasses found in Ohba's concepts. Over the course of the series, he changes visibly by losing weight and aging poorly- particularly during his and Light's confinement.^[4] Both Ohba and Obata found Soichiro to be the most pure character, and Ohba personally found him to be the third strongest character in the series "besides Light."^[5][6][7] His birthday is July 12, 1955.

Mihael keehl (Mello)

Mello, a character present in the anime and manga versions, was an orphan who grew up with Near and Matt in Wammy's House, Watari's shelter for "gifted" children. Like Near and Matt, Mello was one of the candidates to become L's successor. Similar to L's fondness for sweets, he is often seen eating bars of chocolate. Although Mello is quite intelligent, he often lets his emotions get the better of him. His goal in life is to surpass L and Near. Mello was also killed by minor character Takada Kiyomi. The light novel "Death Note Another Note: The Los Angeles BB Murder Cases" is written out of his view. His real name is Mihael Keehl.

Nate River (Near)

A calm and stoic character that appears in the second half of the series. He subtly represents an albino-like figure with his white hair, and plain white clothes. In the anime and manga versions, Near is a primary candidate to become L's successor and calls himself N during the course of his investigations. He shares a number of similarities with L. Much like how L plays with things such as sugar cubes and forks, Near is frequently shown playing with toys or his hair, and he is constantly shown sitting in an unusual manner. Also, like L, Near likes to stack objects such as dice, while L likes to stack sugar cubes. If you compare the two, you can see they bear some resemblance in appearance as well. After L's death, he was asked to join forces with Mello, who refused (it is explained that Near lacks the emotional insight to beat L, while Mello is too emotional and impulsive). In the manga, Near accepts the fact neither Mello or himself can surpass L, saying that perhaps he lacked dynamics while Mello lacked composure. Near then gained the support of the Government of the United States and formed the Special Provision for Kira (SPK). In the 'extra' manga story, set after the end of the series, Near states that, while he respects Light's drive for justice, he can never find his 'Kira' actions excusable. His real name is Nate River. In the film L: Change the World L gives the name "Near" to a Thai boy who is a mathematical genius; L intends for Near to succeed him

Misa Amane

A girl with an immense crush on Kira, Misa is a popular Japanese model. She is immature and tends to refer to herself in the third person in an attempt to be cute. She is completely devoted to Light, saying that she loved him at first sight, although the feeling is hardly mutual- since Light merely views her as a rather annoying asset and uses her. She is even willing to make the Shinigami eye trade for him. In the manga version, she kills herself after Light's death, which is implied in the anime's finale which shows her standing past the safety rail on a building. What happens to her after the film version is uncertain the only remaining characters whose fates are revealed are L and the Yagami family. Also, In the Death Note: The Last Name Movie Misa finds a second Death Note notebook and uses it to become Light's deadly disciple.