The main character, more or less. An Ordinary High-School Student who comes to the Hanuda area to investigate an urban legend about a mysterious village and a massacre that supposedly took place there. He finds himself stranded in the mountains after his bike breaks down, stumbles upon a weird religious ceremony, and then gets shot by a cop who's apparently immune to getting run over by a truck. And that's just the beginning.
Clothing Damage: He gets a bullethole in his shirt after being shot once in the prologue, and another one later after being shot again.
Failure Hero: He is unable to prevent Miyako's death from the ceremony.
Fragile Speedster: He isn't very resistant to damage and early on he has access to one of the weakest melee weapons, a fire poker. To compensate, he is one of the fastest characters.
Lightning Bruiser: Upon taking a level in badass, he is able to use all three different weapon categories (melee, small firearm, rifle) well.
Took a Level in Badass: The blood transfusion he receives from Miyako grants him immunity to becoming a Shibito at the cost of never leaving the underworld. Also, upon being shot a second time and getting separated from Miyako, he ventures the Shibito Nest with Yoriko in search for her.
Walking the Earth: It's implied that this is what he's been doing between the first and second games. Not much else he can do, being stuck in another dimension and all.
A professor of folklore at the Josei University in Tokyo, but born and raised in Hanuda. Tamon travels to the area under the guise of researching local folklore, but is actually trying to uncover the truth about a landslide that killed his parents in the seventies in the very same village.
Badass Bookworm: He is a university professor who dons a cool revolver like nobody's business. He also comes with a .38 revolver and is not afraid to use it.
The Lancer: To Kyoya to an extent, particularly when they briefly team up in day 3.
Too Dumb to Live: Early on, when Tamon leaves her alone and tells her to stay put, she decides to go searching for something she dropped in a completely different area without any means of defending herself.
Took a Level in Badass: By the end of the game, her and Tamon's roles appear to be reversed, as she's the one taking charge and dragging his helpless ass along.
Kei Makino (né Takaaki Yoshimura)
Also referred to as "Leader Makino" because of his position as a priest for the local Mana religion. He is the identical twin brother of Shiro Miyata.
Actual Pacifist: Refuses to use a weapon at all, even if it means having to fend off a Shibito to save someone's life. Near the end of the game, 'Kei' finally mans up and takes Tamon's .38 revolver to defend himself.
Cain and Abel: The Abel to Shiro's Cain. A very one-sided example; Kei is unaware of Shiro's jealousy towards him and one of his first instincts when Hanuda mixes into the underworld is to look for Shiro; Shiro never bothered to try and find out whether Kei was safe or not.
The Chick: A male example, and one of the more prominent opposing traits to his brother.
Failure Hero: He is unable to protect Tomoko as he tries to escort her to safety, and could not protect Risa from Mina, twice. This indirectly causes Tomoko's and Risa's transformations into a shibito.
Family Relationship Switcheroo: Kei was adopted by Reiji Makino (older brother of Ryoko Miyata, Shiro's adoptive mother) and he and Shiro were raised as cousins. However, Shiro and Kei figured out their true relationship early on in life, and their twinship seems to be an open secret among Hanuda's residents.
Happily Adopted: His adoption by Reiji Makino in contrast to Shiro's adoption by Ryoko Miyata (Reiji's younger sister). However, Reiji loses points for committing suicide when Kei is 12, leaving Kei to replace him as guiding priest, but not preparing Kei for his duties.
Identical Twin ID Tag: His hair is parted in the middle and still has its natural black color, while Shiro brushes it forward and dyes it brown. He also has a beauty mark on the left side of his face, above his lip, which Shiro lacks.
Parental Abandonment: His birth parents died in a landslide when he was an infant, and his adoptive father committed suicide when he was 12.
Separated at Birth: An odd example with Shiro. He and Shiro were separated as infants after the death of their birth parents. Unlike most examples of the trope, they were raised in the same isolated village and their respective adoptive parents were brother and sister, so even though they weren't raised as brothers, they still had some presence in each other's lives and figured out their true relationship by themselves early on. Unfortunately, the warm Kei and the cold Shiro find it too difficult to get along and do not develop a healthy brotherly relationship. They remain so distant from one another that by the time Siren takes place and they are 27, they still refer to each other by their respective adopted last names.
Sibling Yin-Yang: The kind-hearted, yet passive counterpart to the cold but effectual Shiro.
Took a Level in Badass: Subverted. In his final two missions, he is suddenly no longer afraid to fight shibito, but the "Kei" that appears in these final two missions is in fact Kei's already Badass twin Shiro, impersonating Kei after killing him.
Twin Switch: If you want to get technical, it's not much of a ''switch" per se, as he gets killed in the process...
Twin Telepathy: A mild version with Shiro. They often cross paths even though they try to avoid each other and they share a recurring dream about the previous Miyako.
Shiro Miyata (né Katsuaki Yoshimura)
A handsome young doctor at the local clinic and Kei's identical twin brother. He's dating Mina Onda, the nurse who has gone mysteriously missing at the start of the game.
Abusive Parents: His adoptive father was emotionally neglectful and refused to be a father to him, while while his adoptive mother would compare him unfavourably to Kei and pressure him to become a successful doctor in order to surpass Kei, telling him that if he did not, he would be "discarded" by the family. To this end, she did not allow him to play with toys or other children and made him spend all his free time studying.
Cain and Abel: The Cain to Kei's Abel. Despite his success in his own field, Shiro's somewhat jealous of his brother's position in the community. He eventually winds up killing him and masquerading as him.
Dead Person Impersonation: Ultimately, he ends up killing Kei and posing as him. A somewhat interesting example because by the time he does this, there is nobody around for Shiro to interact with to treat him as Kei and he intends to kill himself very soon; he just wants to "be" Kei instead of himself that badly.
Driven to Suicide: After confronting his twin Kei for the final time, he puts a gun to his head, though it's ambiguous whether he did this to drop his brother's guard down to kill him, or Kei intervened and ended up shot dead by accident.
Evil Brunette Twin: Inverted. He dyes his naturally black hair brown, but his good twin keeps the naturally darker shade.
Family Relationship Switcheroo: Shiro was adopted by Ryoko Miyata (younger sister of Reiji Makino, Kei's adoptive father) and he and Kei were raised as cousins. However, Shiro and Kei figured out their true relationship early on in life, and their twinship seems to be an open secret among Hanuda's residents.
Freudian Excuse: His adoptive mother was mentally unstable, while his adoptive father was emotionally neglectful and indifferent towards him. This leads to Shiro himself growing up to become mentally unstable and emotionally cold towards others.
Parental Abandonment: His birth parents died in a landslide when he was an infant and his adoptive parents passed away at some point. We know his mother had some sort of illness, but it is not said how his father died.
Replacement Goldfish: Was adopted by Ryoko Miyata for this purpose; she lost her infant son Shiro in the same landslide that killed his birth parents.
Separated at Birth: An odd example with Kei. He and Kei were separated as infants after the death of their birth parents. Unlike most examples of the trope, they were raised in the same isolated village and their respective adoptive parents were brother and sister, so even though they weren't raised as brothers, they still had some presence in each other's lives and figured out their true relationship by themselves early on. Unfortunately, the warm Kei and the cold Shiro find it too difficult to get along and do not develop a healthy brotherly relationship. They remain so distant from one another that by the time Siren takes place and they are 27, they still refer to each other by their respective adopted last names.
Sibling Yin-Yang: The cold and competent opposite to his kind and ineffectual brother.
Weaker Twin Saves the Day: Inverted. Shiro is without a doubt the stronger twin in terms of having courage and drive that Kei lacks. However, since Kei is the village's guiding priest, he is the one that has important duties and expectations thrust upon him. Unfortunately, Kei is too incompetent to carry out these duties, and cannot handle the pressure placed on him. However, Shiro can handle these duties and keep a cool head, so what does Shiro do? He murders Kei and assumes his identity so he can fulfill the duties of the guiding priest.
A 70-year-old hunter who has lived his entire life in Hanuda. He goes around shooting shibito and dropping cryptic hints about what is going on.
Ate His Gun: His fate. When he realises that there's no way out of the alternate dimension, he turns his hunting rifle on himself. Sadly, it doesn't have any effect outside of blowing his brains out, as he soon wakes up as a shibito.
Cold Sniper: He doesn't particulary care about meeting survivors and prefers his own company.
Friendly Sniper: He is, however, willing to save lives if the opportunity comes along.
Nice Girl: Cares for a scared and confused Kyoya in the beginning, and is concerned with the disappearance of Tomoko and sets off to help find her. Then she recovers from her amnesia and drops her nice demeanour altogether.
A 14-year-old girl born with a sixth sense but without eyesight, Miyako is supposed to be sacrificed in the Mana cult's ritual but is on the run from her fate. She meets and tags along with Kyoya, and the two form a close bond over the course of the story.
The Load: She is arguably even moreso than Yoriko. Since she's blind, you have to stay close to her and occasionally turn back and look at her so she is able to follow you.
Woman in Black: Her black dress and black hair make a striking visual impression, but she doesn't actually fit the usual characterization.
A teacher at the Hanuda elementary school, who cares for her young pupil Harumi as if she was her own daughter.
Badass Teacher: The fact that she is willing to protect her pupil Harumi at all costs definitely earns her this title.
Her title is well-earned when considering her backstory, as explained in an archive file. During a summer break, disaster struck in a beach, resulting in a number of students drowning or vanishing. Reiko was able to save the lives of two other students during the incident, but tragically her own daughter was not found until it was too late.
Heroic Sacrifice: When trying to hide Harumi in a cart used by the shibito, the siren sounds and the shibito is alerted to Harumi's presence. With no other options, Reiko decides to sound the horn from an abandoned truck, leak the gasoline, and ignite it. The resulting explosion not only disables the shibito, but it also kills Reiko.
Mama Bear: Toward Harumi. Even after being shibitofied.
Tragic Monster: As a shibito, she wanders in search for Harumi or her late daughter Megumi, crying to herself along the way.
The Woobie: Though not apparent at first, Reiko sees Harumi as a daughter to cope with the loss of her own daughter, Megumi, after a freak summer break accident.
A 10-year-old elementary school student, whom Mrs. Takato has taken under her wing.
Infant Immortality: Unlike the other characters, she is never shown dying when a shibito catches up with her, merely cowering instead as the screen fades out. She's also the only character who makes it out of the otherworld alive.
Fragile Speedster: Has the worst endurance in the game, even compared to Tomoko who is a few years younger than her, and has access to the weakest melee weapon in the game.
Kill the Cutie: After being linked by her shibito twin sister and used to provoke Mina's killer Shiro, Shiro strangles Risa with his bare hands. Seconds later, bloody tears fall from her eyes, and she starts laughing...
Laughing Mad: Shortly after being killed and returning as a shibito.
Twin Telepathy: There is definitely a connection between her and Mina. It's implied that the reason Risa turns into a shibito is because her sister is infected as well.
Risa's sister, Shiro's lover, and a nurse at the Miyata clinic. She appears to have gone missing at the start of the game.
Anti-Villain: Despite being a shibito, her only goals seem to be reuniting with her sister and getting revenge on Miyata for murdering her. Notably, she simply knocks out Shiro's twin Kei even though she has an easy opportunity to kill him.
Advancing Boss of Doom: Is this in Risa's second level. Weapons doesn't make her flinch, and getting too close prompts Mina to strangle Risa to death, no matter how many times Risa tries to shake her off. The only option is to run.
A former model and actress who hasn't been able to keep up with the competitive entertainment industry and has been reduced to B-list status. She's in Hanuda to film an episode for an occult TV series of questionable quality when she gets separated from her camera crew.
It's All About Me: She cares about her looks, her biggest flaw aside from being a rude bitch. When she misinterprets Akira's talk of the red water, this alongside Sanity Slippage and/or Driven to Suicide cause her to walk into a pool of the stuff.
Jack of All Stats: She is average in health, speed, and picks up a small firearm to use.
Tomato in the Mirror: During her final stage, none of the shibito attack her. At the end of the mission, you find out it's because she's already turning into one of them.
Tragic Monster: She isn't aware of her own transformation into a shibito, and falls into despair after her terrified parents' rejection, though they are truly reunited once her parents become shibito themselves.
The Woobie: She spends most of her story arc separated from her parents, and returns to them unknowingly as a Shibito, and is quickly rejected by her traumatised and terrified parents. Tomoko turns away, heartbroken.
The family is able to live together in the end, as shibito, so it thankfully gets better. Just not for Harumi.
The Big Bad that Hisako has been trying to resurrect. He was an extra-dimensional being whose ship crash-landed on Earth in 683 AD, specifically in Japan during a great famine, and was eaten when the people of Hamura saw him as food that was a gift from the gods.
Ancient Astronauts: An accidental visitor. His ship crash-landed on Earth, setting the game's events in motion.
Crucified Hero Shot: When he was being eaten, he was laid out on two planks of wood. Since he's seen as a god (or rather, God in general) by the Mana religion and Hisako, this actually fits in with his faux-deity identity.
Fish People: It looks just like a weedy sea dragon with six extra sets of humanoid arms. Its name is even a bit of wordplay; it means "fallen dragon child" in loose Japanese. The Japanese name for seahorse also means "dragon's child".
Humans Are Bastards: What with his experience with Hamura's people before dying, it's justified.
Our Mermaids Are Different: It is a hybrid between a seahorse and a human, and a common Japanese folktale states that consuming mermaid flesh makes one immortal.
Tragic Villain: Imagine it; you've just made a violent landing on an alien world, and then get swiftly eaten by its habitants. The sympathy can be laid out moreso when at the time, his body was in a small, larval form.
The Voiceless: Because of this, we don't know how he feels about being resurrected, or even if he wanted to be, let alone how he feels about Hisako giving him strength in the final battle. Given how he crash-landed, got his flesh eaten, and just going berserk with ripping the Nest apart, he's likely to be very angry with humanity.
Chances are that he would have just left Earth after gaining a physical body, or killing everyone before leaving.
A young journalist who arrives on Yamijima Island to gather material for an article for the mystery/science magazine "Atlantis". Can be considered the main character of the game.
The Atoner: Becomes this after being tricked into releasing Mother and the Yamibito.
Literal-Minded: He doesn't really display this a lot, but the only time it's made very clear is when Ikuko jokes about swimming to Yamijima. He actually does calculations over the likelihood.
Nerd Glasses: He always wears them, which goes with his logical thinking. He loses them upon escaping from the Underworld he accidentally released.
Nice Job Breaking It, Hero: He unintentionally releases the Yamibito from the Underworld to the surface. With the help of Ikuko, he quickly seals the Underworld before too many gets out.
The Stoic: He take a lot of the disturbing events in Yamijimi Island with stride and rarely loses his cool.
Not So Stoic: Upon finding out that he was used by Yuri Kishida to release Mother and had accidentally aided them in unleashing the Yamibito on the island. Witnessing their handiwork on an abandoned ferry, for a mere moment he loses it and becomes determined to kill each and every one of them.
Unwitting Pawn: He realises too late that he is being used by Yuri Kishida to free her 'mother' from the Underworld, thus sending a new wave of enemies upon the island. He then spends the rest of the game trying to fix his mistake.
What an Idiot: Really? The whole "this enormous scale is from my mother" thing didn't tip you off at all that there might be something weird about Yuri? To be fair, it's possible she has some sort of clamouring powers.
A mysterious, beautiful, yet vaguely unsettling young woman whom Mamoru stumbles upon at the beginning of the game. She claims to be on the island looking for her mother.
Body Horror: After luring Mamoru down to the Underworld, she opens her shirt... to reveal that she has no breasts. Instead, a giant face appears on her chest and stomach. A 'smiling' giant face, more specifically. Enjoy the Nightmare Fuel as it sinks in.
A popular romance novelist whose sight has been impaired by a traumatic childhood event. Born and raised on Yamijima island, he is returning home in order to recover his lost memories. In-game, he is able to navigate around by sightjacking his seeing-eye dog Tsukasa.
Canine Companion: Tsukasa, his seeing eye dog. She gets transported to Soji later on.
Decoy Protagonist: From the beginning, the game makes it look like he's the main character. He dies at the end of the first half of the game.
Spirit Advisor: Becomes this to other characters once he is absorbed by Mother.
TsunDere: Behaves like this towards Mamoru early on, softening up once she learns to trust him more.
A major in the Japanese Ground Self-Defense Force who crash-lands on the island in a helicopter along with Yorito Nagai. He is determined and experienced, but is constantly haunted by visions of a rescue operation he took part in years ago.
A private in the Japanese Ground Self-Defense Force who crash-lands on the island in a helicopter along with Takeaki Misawa. Young and inexperienced, Yorito can't help but follow Misawa's lead until the circumstances force him to man up and take charge of himself.
The flatmate of a murdered young woman called Ryuko Tagawa who is accused of killing her. He kidnaps clairvoyant Akiko Kiyota and persuades her to help him clear his name. His special ability in-game is setting down hunting traps, which immobilize the enemy and makes them take more damage.
The clairvoyant who accompanies Soji to Yamijima Island, where she believes they'll be able to find some answers on what really happened to Ryuko. She can use her sightjacking skills to see flashbacks of past events.
Grand Theft Me: Her body gets hijacked by Kanae once she gets too absorbed in solving the mysteries of the past, leaving herself vulnerable to possession.
The Woobie: She wakes up on a ferry with the undead after her. And then it turns out she died, got possessed, then felt guilty to the point of tears when she realises she killed Shigeru when Otoshigo possessed her to do so.
Mook-Face Turn: Her attachment to young Shu and her shame for killing his father enables her to escort him out of Yamijima island, away from the mob. Later on, whilst possessing Akiko Kiyota, she helps Mamoru and Ikuko in their battle with Mother and delivers the first blow at the cost of her life.
My God, What Have I Done?: Upon murdering Shu's father under the order of Mother, she soon becomes overwhelmed with guilt, rebels from Mother, and helps young Shu escape from Yamijima island.
Mini-Boss: She becomes this as a dog yamibito as the focus of two mission objectives.
Vanity: As a dog yamibito, she wants to find her nice hair comb. However, it could be due to the fact that it's a precious gift from her father.
One of the two Big Bads of the game. After God created light, the remaining darkness split off into two beings; Mother and Otoshigo. Mother was locked up in a cave, while Otoshigo searched for her in the sea floor ever since.
Big Bad: Although there are two, Mother is more prominent, as Otoshigo has very little screentime.
Eldritch Abomination: Obviously. Given how she's one of the products of darkness itself, she's not exactly normal compared to humanity. Her appearance is...unsettling, to say the least, though we don't know if what we see is anything resembling her true form. From what's seen, her form after using her avatar Yuri as a base for it, resembles a young woman with a very elongated neck and arms, with the bottom of her body being the same as the traditional image of a mermaid, only more fleshy.
Grand Theft Me: Does this to Ichiko after she dies from drowning in the ocean during a tidal wave. Throughout the game, he possesses her, usually enacting on murderous rampages whenever possible. Near the end, his possession's apparent by Ichiko's face being deformed into a single eye, before he ramps it up and turns her body into an Eldritch Abomination.
Evil Laugh: In his own scene, he laughs with apparent joy when the siren rings of Mother's plan to use Spider's Thread to enter the human world. Well, it's 'apparent' because due to being underwater, and being non-human, it sounds like monstrous gargling. The scene is even labelled "Joy" in the link navigator.
Kill 'em All: His initial motive. He wants to kill Mother, and when he's nowhere near her when he possesses Ichiko, he just randomly kills anyone and anything he comes across, especially yamirei and yamibito, since they're Mother's spawn.
Because he doesn't really talk, we don't know if he has any plans after killing Mother, or even "why" he wants to in the first place.
Also, his true form is a mystery. The closest we get is in the beginning, when a large, silhouetted mass quickly scuffles around the ferry. Since its size and shape resembles his monstrous body in Yorito's final level, chances are that it's very much identical, with a few possible facial changes.
SIREN: Blood Curse
A 18-year old American boy who is living and studying in Japan. He is invited to the village by a mysterious e-mail from Sam Monroe.
Action Survivor: He's a pretty standard slightly rebellious teenager and fits the description of the trope to a T, sans the stubble.
The Chosen One: Miyako marks him as one, and Seigo pretty much calls him this.
Expy: A pretty direct one of Kyoya, as opposed to most of the other cast, who each share traits with multiple characters from the original game. The only other character he shares traits from is Tamon Takeuchi in his fifth mission as he has to take out a sniper after it hits Miyako (Yoriko in the original) but otherwise, mostly Kyoya.
Papa Wolf: Considering he's willing to doom the whole cast into a Stable Time Loop so that his daughter "can exist forever"...
Took a Level in Badass: In the second-to-last mission of the game, Sam incapacitates Maggot Shibito Melissa by throwing antennae at her, causing her to get struck by lightning when she climbs high enough on a nearby watchtower. Not only that, but Sam takes up a shotgun and blasts away every single Spider Shibito, including Sol, just to protect Bella from them. And when you consider how Spider Shibito are the quickest to recover, he held out pretty damn well.
The young daughter of Sam Monroe and Melissa Gale. Sam brings her along to their trip to Hanuda, much to Melissa's horror.
Catch Phrase: Her recurring cries of "no, no, no!" may as well be.
We Hardly Knew Ye: He is killed off rather quickly in both timelines, and only has one episode dedicated to himself and Sam Monroe.
Ate His Gun: As with Akira from the first game, and with just about as much effect. He does get the time reversal to bring him back, though.
Badass: He's armed with a shotgun that he snipes with. His introductory cutscene has him calmly blasting away at a group of shibito, including a police officer one, who hides behind a door to protect himself. Unfortunately, Seigo blows off its hinges and beats it at a quick-draw. Really, he's easily THE most badass character in the entire game.
Composite Character: Poor Seigo's probably got it the worst out of the Blood Curse cast, having to cover the roles of Akira, Shiro and Jun, with a little bit of Kei thrown in.
Used to Be a Sweet Kid: She was once a little girl called Bella Monroe, but after a traumatic trip to the village, being thrown back hundred years in the past, and finally undergoing a curse of immortality, she becomes Amana.
Expy: Of Datasushi, serving exactly the role as in the original game, providing the same actions to boot. Then again, this could be because Datasushi didn't have much screentime in the original until the climax, as the whole point was resurrecting him in the first place.