Warning! Unmarked spoilers ahead!
Raye Penber's fiancee and former FBI Agent who worked under L in the L.A.B.B. murder case.
- Action Girl: Of the Dance Battler variety, since she's well-versed in Capoeira and trains L in it.
- Adaptational Intelligence: She quickly works out that Light is Kira in the first live action movie.
- Adapted Out: She's nowhere seen in the live-action drama.
- Alone with the Psycho: Twice!
- Aloof Dark-Haired Girl: Pale skin, dark hair, stunning good looks and a cool, collected personality.
- And I Must Scream: Part of what makes her death so horrifying. Light puts her in a situation where she knows who Kira is... and she can't do a thing about it. Instead, she is essentially forced to watch from inside her own head as she kills herself, utterly alone, deprived of free will and hope.
- Ascended Extra: Both in the prequel novel and in the live-action movies.
- Badass Biker: Rides a motorcycle and is one of the most competent characters in the entire series.
- Betty and Veronica: Though it's gender swapped with Beyond Birthday as the Veronica and Raye Penber as the Betty.
- Biker Babe: She rides a motorcycle and is very attractive.
- Born Unlucky: Her "luck" rating is 1/10. Ouch.
- Capoeira: She was actually the one who taught L how to fight with it.
- Color-Coded for Your Convenience: Official color seems to be blue.
- Crusading Widow: She is partly motivated to investigate Kira by Raye's death at his hands.
- Dull Eyes of Unhappiness: When she's Driven to Suicide.
- Fair Cop: Formerly, at least. She was an FBI agent prior to the beginning of the series and is very good looking.
- Final Girl: Of Another Note but not in the main story.
- Hell-Bent for Leather: Wears a leather jacket and leather pants throughout most of her screen time.
- Horrible Judge of Character: Well, Light seems trustworthy enough...
- Just a Kid: She's had... trouble with this. In the novel, it explains that she had a traumatic experience with having faced down a gang member that was no more than a child. Then there's Light the mass murdering high school student...
- Informed Ability: We hear and read about how competent she is. Seeing it on the other hand....
- Kick Chick: She knows Capoiera, and taught L some moves.
- Love Makes You Dumb: Downplayed. She's clearly very fond of L, and lets her guard down to Light despite being rightly suspicious of him because he reminds her a little of L.
- Mauve Shirt: She ends up getting a few episodes worth of solid characterization before her abrupt death at Light's hands.
- More Deadly Than the Male: Proves to be a much bigger threat to Light than Raye Penber ever was. She gets so close to figuring out Kira's identity that it takes Light pulling out all the stops just to keep up with her, (whereas he easily manipulates everyone besides L in the series), and her being unlucky enough to run into Light when L was away from the station, and getting handed the Idiot Ball to ensure her early demise. The writers have admitted she was meant to last longer but proved so competent that would have been unrealistic if she hadn't caught Light within a few chapters, whereas Light and L's drawn out game of cat-and-mouse over the series culminating in L's death is completely believable. In a physical sense, she was also the one who taught L Capoeira.
- Names to Run Away from Really Fast: At the F.B.I. she was known as "Misora Massacre" for her badassery.
- Never Found the Body: When Light wrote her name in the Death Note, he stipulated that she would kill herself in such a way that her body would never be found, so she just walks off into the distance and is never seen again.
- No Accounting for Taste: Is engaged to Raye Penber, who (in no uncertain terms) tells her to Stay in the Kitchen (despite being far less competent as an investigator than she is) and makes her promise that she'll quit her FBI job as a condition of marrying him. In spite of his lack of support for her career (and the fact that a photo of the two of them suggests that he is less-than-thrilled to be with her), she genuinely loves and cares for him.
- Noodle Incident: Commits suicide in a way that prevents anyone from finding her body. Even Light shows a bit of morbid curiosity about how exactly she achieves that.
- Nothing Is Scarier: How did she kill herself? Light stipulates in the Death Note that she kills herself in such a way that her body will never be found, and through Dull Eyes of Unhappiness she simply walks away in the distance and is never seen or heard from again. Given her intelligence and resourcefulness, Light somewhat regrets that he'll never find out how she pulled it off. Brr!
- Not So Stoic: In her literal final seconds as she learns that Light is Kira.
- Oh, Crap!: The sheer amount of terror on the poor girl's face after learning Light was Kira was just heartbreaking.
- Psychic-Assisted Suicide: Light uses the Note to make her kill herself.
- Properly Paranoid: She's instantly suspicious of Light, and for good reason.
- Quitting to Get Married: Naomi has agreed to do this because her fiance, Ray Penber, worries about her in her line of work.
- Reading Your Rights: In Another Note, she tells B he doesn't have the right to an attorney, trial, etc., because she is so distraught over him having bludgeoned a 13-year-old girl to death. (Although in actuality, the law where B was arrested guarantees those to everyone, regardless of whether they are facing charges for heinous crimes like B's, or more...mundane ones.)
- Real Women Don't Wear Dresses: According to the writer, she dislikes skirts.
- Revenge: She wants to catch Kira to avenge Raye's death.
- Right in Front of Me: In Another Note when L asks her if Ryuuzaki was cool:Naomi: No, absolutely not. He was creepy and pathetic, and so suspicious that if I weren't on leave, I'd move to arrest him the moment I laid eyes on him. If we divided everyone in the world into those that would be better off dead and those that wouldn't, there's no doubt in my mind that he'd be the former. Such a complete freak that it amazes me he hasn't killed himself.
- Sacrificial Lion: Her purpose in the series turned out to be built up just so she could prove that Anyone Can Die.
- Ship Tease: It's a big stretch, but her few moments with L in Another Note have given shippers hope.
- The Smart Girl: Idiot Ball aside, she came incredibly close to capturing Light just through her husband's stories, police reports, and her own deductive reasoning. She was so smart that the writers had to kill her early because it would be unrealistic for her to have not found out Light in a few chapters.
- Snow Means Death: It starts snowing just as Naomi lets down her guard enough to reveal her real name to Light, who sentences her to suicide. The snow continues as she walks to her fate.
- The Stoic: Her emotional strength rating is a full 10/10.
- Too Dumb to Live: On one hand, she doesn't seem to realise that a creepy kid following her around asking Have You Told Anyone Else? is a bit off, not to mention the Idiot Ball. On the other hand, it was a Contrived Coincidence that she went to the police station when Light was there and L wasn't, Light's trustworthiness is backed up by another person and he comes off as a genuine member of L's team. Regardless of what side you're on, nearly all fans agree her death was pretty cheap.
- Subverted in the live action film, wherein her role is notably expanded from the manga. She still dies, but it's more plausible and makes Naomi seem less like an idiot.
- Tsundere: This is Lampshaded in Another Note.
- Vasquez Always Dies: One of the most badass female characters on the show, as well as the first to die.
- We Hardly Knew Ye: Dies too early in the manga to really establish her personality, but this was fixed in the prequel novel and the movies.
- You Remind Me of X: Naomi says to Light that he reminds her of L, (Lampshading that they're Not So Different).
The FBI Agent who was tailing Light.
- Adaptation Name Change: Known as "Raye Iwamatsu" in the live action movie, though pretty much everything else about the character is the same. Made into a plot point in the live action TV series, where his real name is Mark Dwellton, with "Raye Penber" being an alias.
- Adaptational Nice Guy: In the films, his Stay in the Kitchen line to Misora is out of genuine concern for her well-being.
- Badass Longcoat: Wears a nice-looking trench coat when out on the job.
- Bishōnen: He's a fairly young-looking and handsome man.
- But Not Too Foreign: Although American, he is of Japanese descent. The writer states that this was done so he wouldn't stick out like a sore thumb.
- Christianity Is Catholic: Raye is a devout Catholic in the live action movie.
- Incredibly Obvious Tail: Ryuk is the first to mention, and bring the reader's attention, to Raye tailing Light, though Light admits he knew already that he was being tailed. Well Raye does not blend in well in Japan with his longcoat.
- It's Probably Nothing: His reaction to Naomi's concerns about the busjacking.
- Mauve Shirt: Gets fleshed out quite a bit despite only appearing in a few episodes.
- Morton's Fork: Follow my instructions or I kill you and your girlfriend. Guess what happens anyway.
- OOC Is Serious Business: In the first live-action film, his sudden uncharacteristic behavior, courtesy of the instructions Light wrote in the notebook, tip Naomi Misora off that something is wrong, and leads her to further suspect Light of involvement.
- Retirony: Light begins his plan to kill Raye the day he had decided would be his last day trailing Light, as he clearly could not be Kira.
- Spanner in the Works: Completely unintentional on his end but Light's biggest mistake in the series was his murder of Penber. Had he allowed Ray Penber to live, all suspicion of Light would have been dropped. Even if he'd just quietly watched him die, rather than getting into his line of sight and gloating, he would have been better off— it was Raye's reaction to him in his death throes that gave L the clue to focus in on him.
- Stay in the Kitchen: To Naomi, telling her that her suspicions are obsolete now, since she quit her FBI job when they got engaged. Needless to say, he should have listened to her.
- Tall, Dark, and Handsome: Fits the description perfectly.
- Too Dumb to Live: He makes Matsuda look like a genius in comparison. First he shows his ID to the suspect he's tailing, then blows off Naomi's perfectly valid concerns about the incident. This gets him, his coworkers, and fiancé killed.
- Unwitting Pawn: Ha-ha-ha-ha-ha-ha, made you kill your coworkers.
- Zombie Infectee: Rather than acting completely Genre Blind, Raye acts like this about showing his name to a Kira suspect in the live-action movie.
The Director of the FBI. He authorizes sending several agents to Japan at the beginning of the Kira case, but abandons the project after Light kills all of them. He later joins the SPK but is killed by Mello and Rod Ross via their Death Note.
The Director of the National Police Agency. He is kidnapped by the mafia as part of their gambit to acquire the Death Note and then commits suicide, presumably after Light writes his name down.
The Deputy Director of the National Police Agency, and Soichiro's immediate boss. He and his family were among L's initial suspects suspected of being Kira, but despite his aggravation at his daughter being investigated, he still supported Soichiro. However, he was forced to call off the Kira investigation after being pressured by politicians who were threatened by Kira and bribed by Yotsuba executives.
Light's school pal.
- Adapted Out: Nowhere to be seen in the anime, live-action films or TV drama.
- Adjusting Your Glasses: The nose bridge push, see picture above.
- Black Shirt: Light seems to see him as such when he and the other unnamed friend are talking about Kira with Fan Boy-like enthusiasm. They suggest that Kira is a superhero and Light is the one to correct them when they argue that because of Kira the crime rate has gone down, pointing out that since the Kira killings are seen as homicides than the crime rate has actually gone up.
- Fanboy: Either he or the other unnamed friend was a fan of the X-Men.
- Gay Moment: He and Light share an awkward moment when Light asks when he is going to give him a New Year's card and Yamamoto replies with: "Sorry Light, I only give cards to girls."
- Irony: Tells Light, "Be good, dude!"
- One Steve Limit: It's unclear if the Yamamoto in the first volume and the Yamamoto in the ending are the same character or not.
- Pals with Jesus: In the manga Light is always shown walking home with the same two guys, Yamamoto and another unnamed friend.
- Right in Front of Me: When he and another unnamed friend are talking about Kira in front of Light.Friend#2: I did some shoplifting back in grade school and I'm freaking out about it.Yamamoto: Hah, that's peanuts!
- Satellite Character: He gives Light and later Matsuda someone to interact with.
- What the Hell, Hero?: To Matsuda in the Japan-only bonus chapter:
- "Where Are They Now?" Epilogue: In the last chapter Yamamoto has joined the NPA and is Matsuda's drinking buddy.
A motorcycle cop who has the misfortune of encountering Higuchi, who kills Yukito via his Death Note.
Commander of the SPK, Rester is an honest person who has Near's complete trust, so much so that he reveals some of his thoughts and plans to Rester only. He also helps Near with things he can't do for himself, such as booking a flight on a plane. Appears in the one-shot special in the manga along with Lidner.
A former Secret Service agent who works for Near as part of the SPK. She joined the SPK to avenge one of her relatives who had been killed by Higuchi at the time when he acted as Kira. She leaks information to Mello about the investigation, as she reasoned that Kira would be caught faster under their combined efforts. Later, she was chosen to infiltrate the bodyguard unit that protects Kiyomi Takada. In the one-shot chapter set three years after Light's death, it is revealed that she and Rester continue to work with Near.
- Action Girl: She has the physical skills, and poses as Takada's bodyguard.
- Adaptation Dye-Job: Has platinum blonde hair and honey brown eyes in the anime, while the DS game gives her golden blonde hair and blue eyes.
- Affirmative Action Girl: She is introduced after the Time Skip, making her the third action girl in the series and one of the few females in Death Note's predominantly male cast.
- Cynicism Catalyst: She lost one of her relatives to the third Kira.
- Double Agent: Works for both Near and Mello; which one she supports (if either) is never confirmed. She seems to like Mello more, but Mello also treats her considerably worse.
- In fact, it's her working for both of them that enables them to actually form a successful plan. Prior to this, their plans got in each other's way, and they were both too proud to share information. Their lack of coordination also caused both of them to have teams too small to do all the surveillance desired. With the information that she shared, Mello was able to ensure Near's plan worked. Thereby, she actually enabled Mello and Near to work together to succeed L.
- Fair Cop: Very attractive.
- Go Through Me: Pulls one of these when Mello threatens to shoot Near. "If you shoot Near, we'll shoot you, if you both die here, what's the point? Only Kira would be happy with that."
- Revenge: She wants to catch Kira to avenge one of her relatives.
- Shower Scene: She gets her own right before being forced to go back to the SPK headquarters, by Mello. There's a bit of difference between the anime and manga with this, too. In the manga, she was willfully hiding Mello in her apartment after his injury from the explosion. In the anime, Mello simply barged in while she was showering.
- The Smurfette Principle: She's the only female member of the SPK.
A member of the SPK, Gevanni is a skilled lock-picker, stalker and counterfeiter. He tails Teru Mikami when Near suspects him to be X-Kira and plays a vital role in Near's plan to beat Light once and for all.
- Bishōnen: A young, handsome man.
- Deus ex Machina: His convenient ability to perfectly replicate the Death Note in a single night is only revealed at the end of the story, where it ends up being the decisive move that allows Near to expose Light and Mikami.
- Impossible Genius: From it's material texture, to each page's paper stains and all, down with the complete forge of each Kira's handwriting within the original book, Stephen manages to make a perfect fake copy of the Death Note Mikami was using with all the names written inside all in one single night.
- Properly Paranoid: When he breaks into Mikami's locker and finds the Death Note, he's terrified of what would happen when he touched it and was worried that Mikami might have been there to catch him taking the notebook.
- Tall, Dark, and Handsome: One of the tallest and most bishonen members of the cast.
An FBI and SPK agent sent to obtain the Japanese Death Note.
Mello's mole in the SPK. Ratt feeds the mafia information on the SPK's activities, but is ultimately killed by them to cover Mello's trail.
A man who took hostages inside an elementary school and who became Light's first victim.
- Adaptation Origin Connection: A minor criminal (and the first person Light kills when testing the notebook) in the manga, anime and live-action films, the TV drama sees him reimagined as a criminal who Soichiro himself brought to justice at the cost of not being by his wife's deathbed. Light later kills Otoharada in the first episode, saving Soichiro who's being held hostage.
A motorcyclist who harassed a woman in the street and who became Light's second victim.
A man who was controlled by the Death Note into hijacking the bus carrying Light and Raye Penber, allowing Light to get Raye's name. Osoreda then inadvertently grabbed a fragment of the Death Note, saw Ryuk, and was terrified into fleeing the bus where he was run over by a car.
- Asshole Victim: He killed three people in a robbery before Light controlled him with the Death Note. He also gleefully threatens to shoot the passengers on the bus, which Light didn't specify he would do, so this is clearly how he acts on a regular basis.
- Villainous Breakdown: When he sees Ryuk on the bus, and empties his gun trying to kill him.
A man on Death Row who pretended to be L in a gambit to draw Light out. The gambit worked and Light killed Tailor, inadvertently revealing that he was in the Kanto region of Japan (the only place where Tailor's message was broadcast).
A loan shark known for the cruel actions he will take to get his money.
- Alternate Continuity: In the manga and anime Misa's stalker is a crazed fan that she had never seen before. In the live action movies, he is the assistant director of her TV program Misa-Misa's Happy Sweets.
- Bald of Evil: in the live action movie
- Collector of the Strange: In the live action movie he retrieves Misa's used tissues from the trash.
- Identical Stranger: In the manga/anime he looks vaguely like Mikami.
- If I Can't Have You...: Tries to kill Misa when she rejects his love.
- The Killer Becomes the Killed: He's killed by Gelus before he can finish killing Misa; which causes Gelus to crumble to dust as he is punished for interfering in human affairs.
- Knife Nut: He tries to murder Misa with a knife.
- Murder-Suicide: When Misa rejects him."I'LL KILL US BOTH!"
- However, since Gelus intervened, the stalker's death was changed and Misa got to live longer than anticipated.
- Stalker with a Crush: He's been stalking Misa because of his crush on her.
- Yandere: For Misa. He claims to be in love with her and planned to kill her and himself when she rejected him.
The boss of The Mafia that works with Mello.
- Alliterative Name: Rod Ross.
- Bad Boss: Has two of his men executed, one for theft and one for failure.
- Bald of Evil: A bald guy who is a ruthless mob boss that ruthlessly slaughters his enemies and even his subordinates in order to advance his goals.
- Dragon-in-Chief: He's the boss of The Mafia. But he defers to Mello's plans because it's good business.
- Gonk: Bears little resemblance to the rest of the cast. Light.
- Karmic Death: He and most of the other mafiosi are killed by Kira when the Taskforce raids their hideout.
- The Mafia: At least nominally, he's his particular faction's leader. He always defers to Mello, though, because it's good for business.
- Perma-Stubble : Always seems to miss something when he shaves.
- Walking Shirtless Scene: Usually has his shirt open or off.
- Unfazed Everyman: Even lampshades it when one of his men begins talking about shinigami.
- Villain Team-Up: With Mello.
- You Have Failed Me: He and Mello test the Notebook on their own henchmen. "That's what you get when you sell goods behind my back."
- You Have Outlived Your Usefulness: Kills off his subordinates once they can't help him anymore, as they might lead Kira to him.
A member of the mafia who retains physical possession of the Death Note on behalf of Rod Ross, and even trades half his life for the Shinigami Eyes.
A mafia member who acted as Soichiro's Mission Control during the first part of his mission to exchange a Death Note for Sayu Yagami. He was killed once the mafia obtained the Death Note.
A pilot working for or with the mafia who landed Soichiro's plane in the desert, allowing Soichiro to exchange the Death Note for his daughter. He was killed once the mafia obtained the Death Note.
The codename of the mafia operative charged with actually making the exchange of the Death Note for Sayu Yagami. He successfully pulled off the exchange and killed off the other mafioso involved in the exchange, but was then killed in turn by Rod Ross after he arranged for the Death Note to be sent to where the mafia could pick it up.
- You Have Outlived Your Usefulness: Rod blows him up in his helicopter after he puts the Death Note on the missile.
A mafia member who played dead during the Task Force's raid on the mafia base. He is not killed by the Death Note instructions Light and Misa use to dispose of the other members, as only his alias was known.
- Hero Killer: Shot Soichiro Yagami in the back and directly contributed to his death.
A popular and pretty young woman whom Mikami chose to be Kira's spokesperson. She was the girl whom Light briefly dated once to hide his connections with Misa; the authors later "forgot" about her... and once they recalled her, they brought her back. Light gets in contact with her to gain access to Mikami, seducing her with a promise to make her the goddess of the New World. Eventually, Mello kidnaps her, and then Light kills her - Mikami would have killed her, if Light hadn't done it first - after she kills Mello to prevent any evidence from being gotten from her.
- Adapted Out: Of the TV drama.
- Alas, Poor Villain: Her final moments are truly disturbing and sad. Being stripped naked and trapped inside a truck and cries in worres. Having killed her kidnapper, she calls Light cries for his help. But unknowing to her, Light instead writes her name down and has her incinerate herself by setting everything around her on fire.
- Alpha Bitch: "Refined Takada" is the mean girl to Misa.
- Though technically, Misa herself started the whole fight by threatening to "break her knee" (leading to Halle having to restrain her). Later on, Takada manages to keep her cool in the restaurant while Misa immaturely and outlandishly (not to mention drunkenly) brags that Light will marry her, leaving Takada to feign being hurt and leave with her head high. This is toned down in the anime, which has both women keeping their composure at the table and Misa's bragging being less over-the-top and even having a shot of her looking concerned when it looks like Takada is feeling hurt, although Misa chugging down a bottle of wine afterwards is still kept (to portray the differences between the composed Takada and the wild Misa).
- Still, Kiyomi seems to enjoy rubbing her affair with Light in Misa's face in her own subtle way. She is the one who approaches Misa with the dinner invitation just for that very purpose.
- Alternate Continuity: In the live action movies she fulfills the same role as the Yotsuba group does in the manga / anime.
- Ambition Is Evil: While she is genuinely attracted to Light, she becomes much more interested in being close to him after learning that he's Kira, and after he promises to make her a goddess in his New World.
- Ax-Crazy: In the live-action film adaptation.
- The Beard: Light sets it up so that he "dates" her. His excuse for the Taskforce is that Kira will not kill Takada's boyfriend and that this will keep him safe while he investigates Kiyomi, but the real reason he does it is because he is Kira and he needs Takada to access Mikami.
- Betty and Veronica: The Veronica to Misa's Betty for Light's Archie.
- Bitch in Sheep's Clothing: Definitely. She sleeps with an engaged man and invites his fiancee out to brag about it, while being presented to the world as the epitome of grace and class. Even her nickname is "Refined Takada".
- Blatant Lies: Her repeated referral to Misa as her "good friend", even after this exchange:Misa: Are you going to get Kira to kill me?
Takada: Of course not!
- That line itself is another blatant lie.
- Bodyguard Betrayal: Directed by Halle into being kidnapped by Mello.
- Break the Haughty: Her very last scene. The woman who spent all of her time being presented as superior, poised, and perfect dies naked, crying, and reaching out for comfort.
- Chekhov's Gunman: Shows up as a very minor character in the first arc, promptly vanishes, and is never mentioned again until far into the second arc.
- The Dark Chick: On Team Kira.
- Deadly Upgrade: She makes the eye deal in the live action movie.
- Dies Wide Open: In the live action film adaptation.
- Ditzy Genius: As lampshaded by Near, she gets very good grades in school but is lacking in the common sense department.
- Driven to Suicide: Under the influence of Light's Death Note.
- Dude Magnet: Quite popular with the opposite sex.
- High-School Sweethearts: College Sweethearts with Light.
- Horrible Judge of Character: She trusts Light, after he tells her that he is Kira - the same Kira who has murdered anyone who got or threatened to get in his way. She even expects him to save her.
- Intellectually Supported Tyranny: As an educated young woman, rather than help protect society against the cult of Kira, she becomes one of its main propagandists. "We must teach our children that Kira is good."
- Irony: The woman who wanted to be the center of attention as Kira's goddess, is killed by Kira and is immediately forgotten by the media.
- It's All About Me: She loves to be the center of attention.
- The Face: She becomes Kira's spokeswoman on the NHN TV station. Her beauty and poise make her very popular with viewers.
- Jack the Ripoff: Is allowed to act as Kira as part of a plan to throw the task force onto Mikami.
- Knight Templar: Blinded by ideals, check. Devoted, check.
- Lady Macbeth: She urges Light to kill Misa at one point.
- Love Makes You Dumb: She's so blinded by her feelings for Kira that she really believes he'll save her when she's kidnapped, even though he's killed anyone who threatened to compromise him in any way.
- Loves My Alter Ego: Subverted; while she is very much more in love with Kira, she's still attracted to Light.
- Meaningful Name: Takada = tall ricefield; Kiyomi = pure beauty. Notable in being the only character in the entire series to have a real-life name.
- Modesty Bedsheet: Wears one right after killing Mello, who had stripped her naked.
- Monster Fangirl: She becomes even more devoted to Light when she learns that he's Kira.
- Murder the Hypotenuse: Really dislikes Misa and tells Light at least once to kill her.
- Namedar: She makes the eye deal in the live action movie.
- No Place for Me There: In the live action movies "There's so much filth in the world... and I am the worst of all."
- The Ojou: She's nicknamed "Refined Takada".
- Poisonous Friend: She's fully behind Kira, and agrees with Mikami that those who do not adequately contribute to society should be punished.
- Principles Zealot: More in the live action. In the anime, she's more interested in being Kira's goddess than in his ideals.
- Psychotic Love Triangle: She and Misa are rivals for Light's heart, which ends just as well as you'd think it would.
- Psychic-Assisted Suicide: Forced to burn herself to death.
- Unequal Pairing: Considering Light's god complex, this is unavoidable.
- Victoria's Secret Compartment: Keeps a page of the Death Note in her bra.
- Villainous Breakdown: She's absolutely terrified when Mello kidnaps her, more so after his death.
- Wicked Cultured: In contrast to Misa, she presents herself as intelligent and refined.
- Yandere: After Light assures Takada that his seeing Misa doesn't mean anything and "you're the only one for me":Takada: If you're lying you're going to pay. I'll tell Kira, you know.
Light: Ha ha. Great joke Takada.
Takada: I'm not joking.
Ide: Whoa, women are scary.
- Woman On Fire: How she ends up. Fortunately, she doesn't seem to be conscious for most of it, at least not in the anime.
- Averted in the live action film adaptation. Instead of being burned to death, she dies of a heart attack.
- You Have Outlived Your Usefulness: Shortly after she kills Mello, Light tells her that before he lets her die in order to avoid having her picked up and questioned.
Demegawa is director of Sakura TV, a Japanese news channel that is notoriously unreliable and sensationalistic, and he shamelessly seeks to exploit the Kira case. He is first seen attempting to broadcast the video tapes Misa sends to his network to get Kira's attention, although Soichiro puts a stop to that. After the Time Skip, he becomes Kira's supporter and self-appointed spokesman, creating and hosting the Show Within a Show Kira's Kingdom.
- Adaptation Name Change: His name is Yuji in the second live-action film.
- Adaptational Jerkass: He was already a scumbag in the manga, but in the live-action movie, he sexually harasses Takada and makes female employees sleep with him for promotions.
- Asshole Victim: He's a greedy Jerkass who calls himself a "spokesperson" of Kira to gain fame and publicity. When Mikami offs him, even the Kira Task Force don't hold it against Kira and unanimously agree that if anyone ever deserved such a fate, it was Demigawa.
- Attention Whore: Demigawa wants all eyes on him and is prepared to side with Kira to get it.
- Fat Bastard: Overweight and a self-centred jackass.
- Averted in the live-action film adaptation as he was at normal weight in that version. He's still a jerk, though.
- If It Bleeds, It Leads: A mindset he wholeheartedly subscribes to, and he even goes out of his way to mention this trope word-for-word in the English dub.
- Jerkass: A scumbag TV executive who sees Light's killings as a chance to boost ratings, and eventually becomes the leader of Kira's cult and leads a riot against the SPK when he feels they're a threat to his new power.
- Karma Houdini: In the live-action movies, he does not get any retribution for his Jerkass attitude.
- Mouth of Sauron: Relays Light's messages to the public.
- Meaningful Name: Actually a case of an ironic one; his given name is written with a kanji character meaning "benevolence."
- His surname, on the other hand, is reminiscent of the English "demagogue", which describes him perfectly.
- Only in It for the Money: All he cares about his profits.
- Politically Incorrect Villain: In the second film, wherein he sexually harasses Takada.
- Spared by the Adaptation: He doesn't die in the second live-action film.
- You Have Failed Me: In the magna and anime, he's killed by Mikami for falling for Near's money bait rather than pointing his cameras at Near so Misa could have killed the SPK members as Light wanted, and also because he was being too much of a loose cannon in general.
A news anchor for NHN. Seen in one scene in Episode 11, where he denounces Kira's actions on live television.
- Did You Just Flip Off Cthulhu?: Calls out Kira's actions as a threat to the nation's constitution and praises the police for standing up to him, with his face on live TV. He then gives his full name, knowing full well that he's just given Kira the ability to kill him. Kira doesn't.
- Nerves of Steel: Not a fighter, but he fits the "Brass Balls" version of the trope. He's one of the bravest characters in the show, and willing to lay down his life for a point of principle.
Misa's original manager.
- Corrupt Corporate Executive: Maybe. L allegedly has her arrested for drug possession offscreen in order to hide the fact that he's detaining Misa from the general public. The show never goes into detail on whether L planted the evidence or not or even if she was really arrested and not just paid off.
- Horrifying the Horror: Misa, the Second Kira, is very intimidated by her and even L and Kira seem a bit unnerved.
- Jerkass: She comes off as cold and unpleasant in her one scene.
- Mean Boss: Towards Misa. She is very scary, pushy, and controlling.
- No Sense of Personal Space: She literally grabs Misa by the wrist and pulls her off to work.
The President of the United States. He attempts to work with Light to take out the mafia, but their plans are foiled by the mafia's shinigami. Hoope then shoots himself, ostensibly in fear of being controlled by the mafia's Death Note into launching nuclear weapons, but it's heavily implied Light did this to cover his tracks.
The Vice President of the United States, who ascends to the presidency once Hoope dies. Sairas surrenders to Kira and disbands the SPK rather than risk his own life.
A military commander who leads a squad to attack the mafia's hideout. He is killed along with the rest of his men thanks to the mafia's Death Note and the shinigami Sidoh.
The President of the United States who has assumed office a decade following the Kira case. When a new Kira surfaces and decides to auction off the notebook to the highest bidder, he becomes determined to buy it on behalf of the United States government.
- Absurdly High-Stakes Game: Ends up unwittingly playing one. After the Shinigami King finds out that a Death Note was being auctioned off by a human, he was furious and imposed a new rule stating that if any human tried to buy or sell a notebook, they will die upon receiving their payment. This leaves him with the choice of the notebook or his life. He chooses the latter in order to maintain a front of power for the United States.
- Achievements in Ignorance: Considering the one-shot is the Grand Finale to the series, the Donald arguably becomes the one person to actually come out on top in the story. Given the sheer amount of blood, time, and schemes were spent over that notebook, it is certainly jarring that Donald Trump, of all people, becomes the closest thing to a final victor in the Death Note universe. Certainly he gets cheated out of actually being able to use the notebook, but he is still shrewd enough to maintain the public perception that he possesses it, which would doubtlessly give the United States a bargaining edge in international diplomacy. On the other hand, it is only a matter of time before other nations begin to call his bluff, and there is nothing stopping another Death Note from entering the human world, leaving the ultimate fate of their world uncertain.
- Historical Domain Character: Hes the first real person to be seen in the Death Note universe.
- I Did What I Had to Do: Once he learns that he will die if he accepts the Death Note as a result of a newly-imposed rule, he decides to not accept ownership of it, but tell people that he did anyway. This is probably the most pragmatic thing he couldve done in this situation; were he to reveal that he doesnt actually have the notebook, itd be a PR disaster, especially considering the huge sum of money hes paid for it. If people think he has it, but refuses to use it, it makes him look good. Were he to accept the notebook and give his life to ensure its owned by the US government, theres no telling who might end up getting their hands on it.
Mello's assistant, longtime friend, and a fellow graduate of Wammy's House.
- Adaptation Dye-Job: His hair and eye colors were not defined in the manga for a very long time. The anime (and later a colorized manga publication) presented his hair as being brown (though it looked a bit green depending on the lighting), and his eye color as blue. In one of the video games, his hair was a light blue, and his eye color could not be discerned. And on a trading card, his hair was a straight-up green. (This possibly makes Matt the Trope Codifier.)
- Adapted Out: Because in the drama Mello is merely a Split Personality of Near or, alternatively, does not actually exist, Matt does not appear in the drama, as there was no reason for him to.
- Attention Deficit... Ooh, Shiny!: Easily distracted. See "idiot ball."
- Badass Bookworm: Like most of the Wammy's boys he's a scrawny geek who doesn't appear to be in very good shape. Also like them he proves a royal pain in the backside for Light. However, he attacks an armed convoy alone and nearly gets away.
- Badass Driver: Matt leads Takada's guards on a merry chase through Tokyo.
- Beware the Nice Ones: Oh, yes. Special mention goes to the German manga translation, where it's implied that he beat up the delivery guy that helped Misa and Mogi sneak out, rather than just talking to him.
- Bishōnen: When he takes his goggles off...which never actually happens in-series, but is shown in some concept drawings from ''How to Read: 13''.
- Brilliant, but Lazy: Would rather be playing video games than doing just about anything else. He doesn't even like to go outside!
- Cigarette of Anxiety: His habit in general, and in particular the cigarette he lights during the Takada mission, which turns out to be his last.
- Cloud Cuckoolanders Minder: The writer states he has one in the form of Mello. However, given that Matt seems to be much more even-tempered and level-headed than Mello, it's likely that Matt is Mello's minder as well.
- Cool Car: Drives a 1968 Chevy Camaro in the manga. (In the anime, it's been changed to a 1968 Plymouth Road Runner 383 with a taillight panel from a 1969 Dodge Coronet 440. In some fanworks, it's described as a 1970 Chevy Chevelle.)
- Cyberpunk: Has this style in his clothes, and his sofa.
- Dark and Troubled Past: Like all successors, he's an orphan, making it not unlikely he witnessed his family die, with apparently no remaining family that could have (or wanted to) adopt him, and was groomed from an extremely young age (likely being confronted with very graphic crime scene evidence during the process) to succeed the world's greatest detective, and actively being pushed to compete with his peers no matter the cost to his mental health. He doesn't seem to care much about that, however, regardless of his position of being third in line, making you wonder exactly how high in the rankings he'd be if he applied himself. See Refusal of the Call below.
- Deadpan Snarker: His two canon lines in the anime are pretty snarkynote .
- Drives Like Crazy: The Chase Scene was pretty much his only scene.
- Early-Bird Cameo: In the manga, he appears at Wammy's, listening to L answer the kids' questions from his computer. In the Relight Special, he is replaced by someone who looks a lot like L, and is thought to be Beyond Birthday.
- Easily Forgiven: When he accidentally loses track of Misa and Mogi, Mello isn't happy about it, but doesn't even so much as scream at Matt. As it's implied that others might have been killed for less, this says a lot about their friendship.
- Excuse Me While I Multitask: Plays a game while spying on Misa, and monitors several screens (plus an audio feed) at once.
- Extreme Doormat: To Mello.
- This is subverted, though. He calls Mello up to complain about being bored while spying on Misa and Mogi. Mello, for his part, tells him to get back to work, but doesn't yell at him or anything.
- Everyman: Arguably one of the most normal characters, and one of the most relatable to the audience.
- Famous Last Words: "You won't shoot..." Also qualifies as Tempting Fate.
- Goggles Do Nothing: Is never seen without his goggles on, except in one tiny concept drawing in How to Read: 13.
- Hacker Cave: The dingy little apartment he shares with Mello.
- Heterosexual Life-Partners: Almost always portrayed this way with Mello by fandom.note
- I Surrender, Suckers: If you look very closely at his hand during his confrontation with Takada's guards, he was going for a gun when they fired at him.
- Idiot Ball: Loses his focus, and totally misses Misa and Mogi escaping.
- Informed Ability: We're told he was number three at Wammy's, just behind Mello and Near, but we don't see it in action.
- Killed Mid-Sentence: "You won't shoot..."
- Mauve Shirt: Gets just enough characterization for his death to be sad.
- Megane: A variation with goggles instead of glasses. It's unknown if the goggles are meant to be a substitute for conventional frames, or if the lenses are actually corrective lenses, though.
- Men Can't Keep House: Justified on the grounds that he cares far more about video games than cleaning. Mello, surprisingly, doesn't seem to mind too much.
- Must Have Nicotine: He's mentioned to be a chain-smoker and is never shown without one in his mouth.
- No Kill Like Overkill: Was shot approximately 50,000 times!
- Odd Name Out / Special Person, Normal Name: Of the Wammy's boys. You got L, Beyond, Mello, Near, and... Matt.
- Only Friend: The only person he ever really interacts with In-Universe is Mello.
- Only Sane Man: Is the only Wammy's kid (apart from Linda) with a relatively normal personality. Also, not surprisingly, he plays this role a lot in fanfictions to more...dysfunctional characters such as Mello.
- Oral Fixation: Always has a cigarette in his mouth.
- Parental Abandonment: Like all the other kids at the house, he's an orphan.
- The Pirates Who Don't Do Anything: He plays video games and he smokes... a lot. Considering that Wammy's House seems to exclusively rear genius eccentrics, the odds are good that that's his particular eccentricity (or addiction, depending on what you view of what L's sweet-devouring, Near's toy-obsession, and Mello's chocolate-violence as).
- Real Men Wear Pink: His shirt is sometimes portrayed as having pink and black stripes, though it could actually be just the way the light was hitting it.
- Refusal of the Call: It's hinted that he could have surpassed both Mello and Near and become L's successor, but that he chose not to, preferring to stay in third place and work alongside Mello. note
- Satellite Character: The writer says he was created 'so Mello wouldn't be lonely'.
- Smoking Is Cool: Is shown conspicuously lighting a cigarette (that would turn out to be his last) while driving a classic car into battle.
- Sunglasses at Night: Wears his tinted goggles even while indoors, in a very poorly-lit room.
- Talking Your Way Out: Attempts this. It does not work.
- Techno Wizard: He's apparently great with electronics, though we don't see much of that unless he's with a video game.
- Teen Genius: He's the third most talented member of Wammy's House. Yes, Matt was third in line to be L after Near and Mello.
- The Peeping Tom: Enjoys getting to watch Misa 24/7, whom he calls "cute."
- Trash of the Titans: His apartment is littered with snack food wrappers and cereal boxes.
- Unfazed Everyman: Knows nothing about Shinigami or killer notebooks, but goes along for the ride when Mello chases after Kira.
- Video Game Culture: One of his few appearances shows him playing a video game and it's mentioned on his character page in How to Read 13 that he enjoys video games.
- What, Exactly, Is His Job?: He is most likely employed somehow when we first see him note , since he's got food and a roof over his head, and has some luxury items, but we never see what he does for a living. He is thought to be a professional hacker (legal or otherwise), though this is not confirmed In-Universe. When we first see him, he's just sitting there playing video games, and in all his later appearances, he's doing recon work for Mello.
- We Hardly Knew Ye: He only appeared in a few panels before getting killed.
- You Gotta Have Blue Hair: In one of the games.
- Dark and Troubled Past: Like all successors, she's an orphan, making it not unlikely she witnessed her family die, with apparently no remaining family that could have (or wanted to) adopt her, and was groomed from an extremely young age (likely being confronted with very graphic crime scene evidence during the process) to succeed the world's greatest detective, and actively being pushed to compete with her peers no matter the cost to her mental health. No pressure. Despite all this—from what little we can tell from her sparse appearance in the manga, at least—she seems to have come out relatively sane.
A friend of Watari's, and the caretaker at Wammys House. At the end of the series, he becomes the new Watari for Near.
- Child Hater: He hates kids. Or so it says in How to Read. Apart from this it is not mentioned or shown anywhere in the story proper.
- Collector of the Strange: He keeps an insect collection.
- Expy: He takes Watari's place as the new handler for "L" (Near).
- Pastimes Prove Personality: He collects insectsthat typically involves pinning down the little creatures and stabbing them with pins. Oh and he also hates kids.
Light's little sister, who has the bad luck of being a normal kid in this messed up environment. She's completely unaware of her brother's occupation as Kira. After her horrible kidnapping by Mello, she ends up catatonic and in a wheelchair. The writer says she's getting better at the end of the manga.
- All Women Love Shoes: According to the Guidebook, she has very many pairs.
- Ambiguously Bi: To recap: she first says that she "doesn't want a boyfriend." Then she exclaims that Misa is "my type!" And she smiles when leafing through one of Light's magazines. The ambiguity here is that she fangirls over Hideki Ryuga (the pop star) and proclaims him perfect. She also states that she might at least consider going out with Matsuda if he were closer to her age. Fanon is relatively divided on whether Sayu is a closeted Lipstick Lesbian or bisexual.
- Annoying Younger Sibling: In the first half of the manga, in which she'd tease Light about Misa or generally poke fun at his lifestyle.
- Big Brother Worship: "My big brother's a genius!" Taken even further in The Musical, where she says she disapproves of Kira's actions, and thinks he could learn a thing or two by following Light's example. She even gets a song about it, appropriately titled, "My Hero."
- Bound and Gagged: When kidnapped by Mello.
- Break the Cutie: The second part of the series is so damn cruel to her. Especially when she winds up practically catatonic and wheelchair-bound, due to her shock and depression after her being kidnapped. Then her father dies. She's last shown in a brief cameo in chapter 98, standing once more but vacantly smiling (the writer said she was "slowly" getting better). Then Light dies, and we never get to see how her and her mother react.
- Damsel in Distress: She spent several chapters in Mello's captivity.
- Empty Shell: After she's rescued by her father, she becomes this. Her last cameo in the manga (omitted for the anime) features her standing once more and smiling for a holiday ceremony in Japan, although she still has an eerie vacant look to her face.
- Fangirl: "HIDEKI RYUGA!!!"
- Foolish Sibling, Responsible Sibling: Sayu is the foolish sibling to Light's responsible - and frequently bugs him to help with homework. Subverted once Light becomes Kira.
- Genius Ditz: Despite her rather dim disposition, her conceptualization power is apparently 9/10, the same as the genius who captured Kira, Near. Just look at the ease in which she manipulates Light into doing her homework for her... it must run in the family.
- The Ingenue: Sweet, caring, innocent, and doesn't seem very smart.
- Morality Pet: She exists to give Light Pet the Dog moments and to be kidnapped. Complete with Lampshade Hanging:Ryuk (to Light): I guess even you have a soft spot for your sister.
- Nice Girl: Sayu comes off as a sweet, friendly girl — who got in way over her head.
- Parental Favoritism: A minor example. While Soichiro doesn't completely deny the possibility that Light could be Kira (and he is), he is adamant that Sayu couldn't possibly be the killer.
- She Is All Grown Up: After the Time Skip. You can't blame Matsuda for crushing on her.
- Ship Tease: Sayu drools over Misa and she says she might consider going out with Matsu if he wasn't so old.
- Sole Survivor: Of the Yagami family in the television drama.
- Spoiled Brat: Particularly in the live-action drama, but to a lesser extent in the anime/manga series proper.
- The Teetotaler: The writer states that she dislikes alcohol.
Soichiro's wife and Light and Sayu's mother. Like Sayu, she is completely unaware of Light's identity as Kira.
- Break the Cutie: Near the end, her husband's dead and her daughter been traumatized from the kidnapping. We see her alone in the dining room which was once so full of life from her family now completely empty. After a moment, she breaks down and cries. And of course, she still doesn't know her son is an infamous serial killer and by the end of the day's events, she's going to lose him as well.
- Death by Adaptation: In the TV drama, she's been dead for ten years when Light finds the notebook.
- Education Mama: Quite possibly. In one of her few appearances she gushes over Light's report card while Light himself looks rather depressed and anxious.
- Happily Married: To Soichiro.
- Neat Freak: In the manga she's shown cleaning her spotless house in almost every scene. Probably where Light gets it from.
- Outliving One's Offspring: In every incarnation to date bar the TV drama, she survives until the end while Light does not.
- Posthumous Character: In the TV drama, Soichiro's absence during her death, combined with his long hours spent away from home due to work, puts a strain on his relationship with Light, which is amplified since Light must look after Sayu.
- Yamato Nadeshiko: She's a strong woman who does everything she can to keep the family from falling apart during the case.
The third Kira and the main antagonist of the Yotsuba arc. He's one of the eight-member Yotsuba board and head of the technological development, but isn't very competent compared to the others, and is obsessed with gaining social status in addition to wealth. Light gave the Death Note to Rem to clear himself and Misa of suspicion. Rem gave it to Higuchi because he would likely use it the way they needed him to. After his arrest, Light kills him to regain control of the notebook.
- Adapted Out: Of the live-action films, though he does appear in the TV drama.
- Ambition Is Evil: Desires promotion and financial success and is prepared to kill to get it.
- Arc Villain: Serves as a Big Bad stand-in during the Yotsuba storyline.
- Asshole Victim: He's enough of a jerk that Rem actually prefers Light over him. Then Light kills him using the Death Note, to no one's grief.
- Axe-Crazy: By the time the Task Force is closing in, Higuchi is a ranting madman.
- Big Bad Wannabe: He thinks having the Death Note will put the business world at his mercy but he's really just a pawn in Light's schemes and is easily killed off once his part in the real villain's plan is done.
- Corrupt Corporate Executive: Sits on the Yotsuba board and has no problem committing murder to climb the ranks.
- Curb-Stomp Battle: Really, he didn't stand a chance against L and Light's scheming.
- Deadly Upgrade: He decides to make the eye deal in order to find Matsuda's name.
- The Friend Nobody Likes: He often shows his arrogance despite being not as competent and smart as six of the other seven members, leading him to be disliked by his co-workers. Namikawa, Mido and Shimura conclude from his bad personality that he is the Kira among them. They are right.
- From Nobody to Nightmare: An unpopular corporate drone before Rem handed him the Death Note.
- Greed: Higuchi is mainly concerned with profit.
- Hate Sink: He's certainly no more evil than Light, but he has neither Light's charm nor any Well-Intentioned Extremist tendencies to make him sympathetic. His overbearing personality and overwhelming selfishness and greed serve to make the audience loathe him.
- I Have You Now, My Pretty: Tries to force Misa to marry him when she was investigating his corporation.
- Jack the Ripoff: The Third "Kira".
- Jerkass: He becomes the third Kira not out of any sense of justice, but to boost his own businesses. He's also a creepy scumbag who sexually harasses Misa.
- The Killer Becomes the Killed: He acts as the third Kira as a part of Light's Memory Gambit, and was finally killed when Light regains his memories of the Death Note.
- Namedar: When cornered, he makes the eye deal.
- Quick Draw: When confronted by Task Force members at Yotsuba headquarters, Higuchi pulls a pistol and hits Mr. Yagami, despite Wedy having her own gun trained on him the entire time.
- Serial Killer: The third Kira, thanks to Light giving him the Death Note as part of a Batman Gambit.
- Slasher Smile: Makes an incredibly unnerving and evil smile while writing down names, and after making the eye deal.
- Smug Snake: Enjoys insulting people despite his limited abilities.
- Stop, or I Shoot Myself!: Tries to pull this when the Task Force is about to arrest him. Watari prevents it by shooting the pistol out of his hand.
- Too Dumb to Live: Was tricked by Misa of all people into revealing himself as Kira.
- Unwitting Pawn: Only gets to become Kira as a part of Light's Memory Gambit. Light kills him when he's outlived his usefulness.
- Villainous Breakdown: Loses composure more and more as he gets closer to being arrested.
- Villainous Widow's Peak: He has a pretty prominent widows peak and is one of the Kiras.
A member of the Yotsuba Eight.
- Bishōnen: Of all the members of the Yotsuba group, he's the only one drawn in an appealing manner.
- Blood from the Mouth: Pukes blood when Light kills him.
- Board to Death: Like the rest of the Yotsuba group he's killed by Light.
- Color-Coded for Your Convenience: Official color seems to be purple.
- Corrupt Corporate Executive: A member of the Yotsuba Group, and perfectly willing to profit from the deaths of others.
- Evil Genius: He's the real brains of the Yotsuba Group, is smart enough to work out on his own which of his fellow board members is the Third Kira, and even successfully manipulates Light during a phone conversation. Even L and Light acknowledge how smart he is, deducing that he can't be the Third Kira because he wouldn't need the assistance of the rest of the board.
- Hazy Feel Turn: Which side he's really on at the time of his death is pretty ambiguous.
- HeelFace Door-Slam: He, along with two other members of the Yotsuba board, wanted out, but were killed by Light regardless.
- Manipulative Bastard: Managed to manipulate Light of all people into revealing Higuchi as the third Kira—though he himself had already worked it out.
- The Proud Elite: He is cold, calculating, and very intelligent. He is also quite attractive.
- Smart People Play Chess: According to the profile of him in volume 5 of the manga, he's an expert shogi player.
- Tall, Dark, and Snarky: Tall, black haired, and sarcastic.
- Unwitting Pawn: Averted. Namikawa knows full well that he's a pawn of whoever the real Kira is, and just wants out.
- Villainous Friendship: With Midou and Shimura.
- You Have Outlived Your Usefulness: Light kills him and the remaining members of the Yotsuba group when the whole ordeal with Higuchi is over.
- You Just Told Me: How he figures out that Higuchi is the third Kira.
Member of the Yotsuba 8.
- Bishōnen: He is quite attractive.
- Irony: In How to Read, we learn he dislikes the business world...
- HeelFace Door-Slam: He is killed alongside all the other member of Yotsuba 8 just after they had decided to reform
- Honest Corporate Executive: He really disliked the agissement of Kira and he seems to devote body and soul to his job (according to How to Read).
- Not So Different: In the manga, Misa notes that Mido shares a ressemblance to Light.
- Villainous Friendship: With Namikawa and Shimura.
Member of the Yotsuba 8.
Member of the Yotsuba 8.
- Grew a Spine: A subtle version of this. Shimura is constantly portrayed as nervous and paranoid, and while he's morally opposed to the Yotsuba Kira and realizes how dangerous they are, he's too scared of Kira to act on it for the first part of the arc. However, after being repeatedly ignored by his coworkers and being forced to contribute to the deaths of innocent people (including Hatori, whose death Shimura outright protests in the manga), he takes matters into his own hands and seeks Mido out with the intention of convincing all the non-Kira meeting participants to help take down Kira. He's also notably more confident in expressing his own opinions during the scene in Mido's house. However, L catches Higuchi before Shimura has a chance to do much, and Light kills him months later.
- HeelFace Turn: Never really a "bad guy", since he is obviously opposed to the meetings from the start, but is scared enough of the consequences of taking action against Kira to remain complacent for the first part of the Yotsuba arc. Eventually, he decides to take direct action and attempts to get other members of the Yotsuba Eight on his side in order to take down Kira on their own... but L and the others get there before he can even finish proposing the idea to Mido and Namikawa.
- Properly Paranoid: He's the only member of the Yotsuba Eight who seems to realize how suspicious Coil and Matsui are, which even characters supposedly more intelligent than him totally overlook (Namikawa eventually catches on, but only due to Light contacting him). He repeatedly tries to bring this up, but all his coworkers brush him off even though he's actually right in all of his claims. Namikawa does eventually praise him for this however, and suggests it's probably why Higuchi wound up selecting him as one of the Yotsuba Eight, valuing his caution.
Member of the Yotsuba 8.
- Megane: Even has a glasses collection!
Member of the Yotsuba 8 and their de facto leader.
Member of the Yotsuba 8.
A new Kira who appears in the bonus chapter. He uses Midora's spare Death Note to kill the elderly that wish to die, but he eventually kills himself after Near bluntly dismisses him.
- Foil: As Ryuk points out, the reason this Kira commits suicide is essentially because he was too mentally weak to handle the pressure of the power that comes with usage of a Death Note. It helps to highlight just how psychotic someone like Light would have to have been to use it so consistently.
- Otaku: Possibly, based on the figurines seen in a shot of his room.
- Brainless Beauty: It's remarked that he could never get into To-Oh university (a fictional version of the prestigious University of Tokyo).
- Chekhov's Gun: His name, not the character, which is used by L when he disguises himself as a student at Light's university.
- Identical Stranger: It was pointed out that in the manga he kinda looks like L.
- Idol Singer: Basically the extent of his character, he is a famous pop icon.
- Ship Tease: With Misa. Misa looks very stunned when they're acting out a romance scene together but then suddenly objects to kissing him informing all that she already has a boyfriend.
- Unwitting Pawn: To L, in a way. L uses his name, "Hideki Ryuuga", as an alias when he disguises himself as a university student. Even if Light tries to kill his classmate Hideki Ryuuga, the pop idol is so famous that Light can't guarantee he won't accidentally picture his face instead, so if the real Ryuuga dies, then Light is definitely Kira. Light doesn't do it.
A girl that Light asks out on a date to Spaceland as part of his plan to get Raye Penber's name.
- Clingy Jealous Girl: "I've got you all to myself!" Also, in the manga, she insists that she and Light still go to Spaceland after witnessing a gruesome death.