Back from the Dead: In the anime's finale, Hibiki convinces Polaris to resurrect the rest of the cast and restore the world.
Badass Crew: Notable that while the membership is variable depending on your actions, they will wind up kicking way more ass than the JP's regulars in the long run.
The Chosen Many: In the anime, at least, all the main characters (except Daichi) have the inherent ability to conjure unusually powerful demons. It's invoked in the anime in that they were scouted for their power beforehand rather than meeting up and being recruited by the hero by chance.
Did You Just Punch Out Cthulhu?: Unlike the first game protagonists, the explicit goal of the entire team is to do this until none of them are left standing, and at least two members of said team will do this on a one to one basis.
Like a Badass out of Hell: Inverted. At the end of the game, regardless of what ending you're going for the whole team winds up storming what is more or less Heaven.
Meaningful Name: Every character's name relates to their star sign somehow (besides the protagonist's, for obvious reasons). For instance, "Akie" comes from the Japanese pronunciation of Aquarius (Joe's star sign, pronounced akueriasu) and "Jungo" comes from the word "zygos" (pronounced jugosu in Japanese) which means "to balance the scales;" Libra, Jungo's star sign, is represented by scales.
True Companions: To keep them together, it's highly advised this be the case by building everyone's Fate levels (preferably making an effort to have everyone have Stage 4 or above).
Voiced by:Hiroshi Kamiya (anime) (Japanese), Patrick Poole (anime) (English)
An Ordinary Highschool Student living in Tokyo and studying for his college entrance exams. After signing up for the "death clip" website Nicaea he and his friends are granted access to the power of the Demon Summoning App and are enlisted by the secret government organization JP's in order to use their new powers to summon demons in order to fight back against the otherworldly Septentriones. While he is mute and his reactions are chosen by the player, he is noted to have strong leadership skills.
Aside Glance: Appears to give one to the player with a smile upon picking certain dialogue choices.
Badass In Charge: Everyone eventually nominates him for this role due to his ability to keep the team together and kick ass. Yamato himself makes it official.
Cultured Badass: Likes classical music and learned to play piano from when he was 1st grade until 6th grade.
invokedIron Woobie: Thanks to the protagonist's unbelievable calmness despite the fact almost everyone else is traumatized, everyone is convinced he's the standard bearer for this. In fact, Daichi can even lampshade this during a dialogue option.
Submissive Badass: How Yamato sees him. In fact, this is explicitly why he comes to rely on him, and if the Hero doesn't go along with his plans, Yamato will epically lose his shit and try to kill your party in certain routes because he sees them as corrupting the only subordinate who was any good at his job to turn against him.
Catch Phrase: Half the time you get a choice of dialogue, one of the options is "There's no other way," used equally where it would come off as comedic or serious.
Chick Magnet: Makoto develops a crush on him. Otome lampshades this and she herself has implicit trust in him and asks him to take care of her adopted daughter if she dies. Fumi becomes rather enamored of him and outright mentions it must be love between you when she rejoins the team if defeated prior. Follow through with Hinako's Fate route and she'll suggest that he pole dances, which could hint at some sort of attraction. Airi gets very flustered and apologetic around him, in classic Tsundere style. Io comes to depend heavily on his emotional support and Female Tico is very flirty with him in dialogue. Even Otome's daughter tells him right on his face that he's handsome.
And, this isn't entirely bad or foolish, as some of the goofier responses do keep everyone's spirits up, and considering this is a SMT universe, that's a good thing.
Color-Coded for Your Convenience: Lot's of blue and white, when most other characters have at least a little black in their wardrobe. His black hair does follow that, though.
Covert Pervert: You can choose to play him this way, joining Daichi in admiring the girls and spying on them taking a physical. The funniest option comes when at one point you, Otome, and Makoto fall and land with Makoto sitting on your face and Otome on your pelvis. You can either tell them, "Get off," or "This is nice..."
Even the Guys Want Him: Yamato has an obsession with him that can be interpreted as a crush. Made more apparent in the anime. Alcor also constantly refers him as the Shining One.
The Gadfly: Can be played this way. Most dialogue options are either serious or silly and some of the sillier ones have him messing with his friends. Think of calling Makoto a pervert even when she finally knocks before entering his room, sniffing her hand when she holds it out to him, yelling 'BOO!' at Io while she's lost in thought or trying to pull Daichi's pants down while he desperately tries to keep a box full of supplies from falling. The way the other characters react shows that he doesn't do this out of malice, but, as noted above, to keep everyone's spirits up in the Crapsack World that Japan has rapidly become.
Nice Hat: And a rather goofy one, as it makes him look like he has bunny ears.
Noodle Incident: Apparently, Daichi pulled a joke on him during Junior High School.
Messianic Archetype: Both Yamato and Ronaldo grow to start relying on him to be the standard bearer for their causes, and even the Anguished One refers to him as "Shining One".
Order Versus Chaos: As a result of being the one Polaris sees as the representative of the will of humanity, he can choose Egilitarian, Meritocracy, or the Reset Button Fixed to be the will the new world is founded on.
Stealth Hi/Bye: He has a Running Gag with Io and Daichi of him greeting them and surprising them. You can choose to play it up, but even when you choose the gentler greeting options, they frequently react with shock anyway.
We Cannot Go On Without You: Usually averted, but in the Kill Polaris's route, Polaris concludes that the protagonist is what keeps everyone fighting, so if he is killed during the second phase and onwards, you lose. Makes you wonder why he didn't do this during the first phase.
The anime adaptation Devil Survivor 2 portrays the protagonist as a distinct character, Hibiki Kuze, whose situation is largely the same as the original protagonist's, minus having his character defined wholly by the whims of the audience.
Adaptational Angst Upgrade: While his tone and exact words could be chosen, the game's protagonist was in general fairly upbeat and tried his best to cheer people up. Anime Hibiki is a little more shaken by the events around him, and seems to struggle with himself quite a bit more.
Blank Slate: As a youth, he was an unemotional drone, likely as a result of his very neutral, aloof parents. Even his house had a very placid color scheme. He only began displaying a personality as he interacted with friends (namely Daichi), and it's implied that he backslides a bit when there's no one around (though at least now he's in touch with emotions like "fear" and "angst"). It's a fairly clever reflection of his Heroic Mime status and lack of backstory in the actual game.
Character Development: Early on he had a typical hero-complex and decided to let Yamato use him since it would be for the greater good. He comes to realize that Yamato was clearly not as benevolent as he'd hoped and that deferring to him was the easy way out. Therefore, doing the right thing meant thinking for himself and making his own decisions. As a result, he goes rogue with Ronaldo, but is less eager to immediately fall into line with his plans. When he's forced to re-align himself with Yamato out of necessity later, he goes into it ready to take him down if need be.
Comes Great Responsibility: He is the first to consider using his abilities for the good of others, rather than just trying to survive. It's the source of his not inconsiderable angst throughout the series.
Playing with Fire: Suzaku is a giant fire-bird-thing, capable of making powerful bursts of flame.
Shock and Awe: His first summon is a giant electric tiger, Byakko.
The Everyman: Sociable but not eccentric. Time will tell where he'll go from there.
The Four Gods: His signature demon is Byakko (Baihu in the game) and by Tuesday he adds Suzaku (erroneously called Feng-Huang in the game) to his repertoire.
Hands-Off Parenting: Hibiki didn't seem that close to his parents. His father often telling him not to get in his mother's way or sounding harsh/uncaring when Hibiki starts coming home late. Would make sense why Hibiki doesn't particularly care about his parents when the disaster struck.
Heroic BSOD: Seeing the huge trail of dead summoners working for Yamato while facing Merak spurns him to let Ronaldo take him under his wing. He gets better when Io and Daichi come to his aid when he was meant to die by Phecda in Tuesday. Though this is pretty much short-lived once Ronaldo, Otome, and Joe all die by Megrez' last ditch attack. He keeps getting this one time too many he's just close to breaking apart.
Heroic Willpower: A requisite for summoning demons without being killed in the process. Hibiki is unique in that he has enough of it to summon something as powerful as Byakko by default.
Only Sane Man: Hibiki is generally portrayed as a pretty sensible and insightful character in the anime, but this gets Played for Laughs in the drama CD, where everyone else reacts in hilariously inappropriate ways to Japan's desperate situation (i.e. Io worrying about the summoning app's data usage, Daichi scared that his driver's license will get revoked) and it's up to Hibiki to be the advocator of common sense.
The Promise: With Yamato in episode 9 to stay by his side until the end and pass judgment if he decides his existence is a sin.
Tender Tears: If you were surrounded by nothing but peril and death for a week, you'd be a bit emotional too.
Took a Level in Badass: In terms of his personal character. By episode 9, he analyzes all of Ronaldo's research and deduces most of JP's plans himself, becoming a bit more Genre Savvy. By this point he's coming to terms with all the pressure and getting over his angst, becoming more proactive and generally wising up. He's finally able to effectively call Yamato out, refuses to be intimidated, and sets his own terms.
A friend of The Protagonist and the one who introduces him to Nicaea. Being on the cusp of graduation, he tends to worry about growing up and the responsibilities that come with it. He is generally cheerful and easygoing, which can lead to him landing himself in trouble. When under pressure, he gets nervous easily.
Took A Level In Badass Again: A SERIOUS one at that after a long spate of Cowardly Lion. He curb-stomps over 10 demon parties about to kill a phone-less Hinako after coming to terms that he needed to take more action. After that, Daichi starts to jump into skirmishes.
He's the only source of comedy in the anime since he only seems to get first tier demons over something else. Then he gets Black Frost, which is a giant evil snowman who's stronger than everyone else's demons, a fact explicitly confirmed by Makoto.
Bully Hunter: As a kid, he protected Hibiki from the bullies despite the risk of being harassed too. Daichi didn't care as a kid. Makes you wonder how he ended up so cowardly as an adult when as a kid he would do in all of his power to protect Hibiki.
Car Fu: He drives a truck into an alien in order to weaken it enough for the party to defeat. The jump and subsequent explosion also qualify it as a Dynamic Entry.
Covert Pervert: Comes up with the idea to spy on the girls' physical and sometimes spaces out when talking to or thinking about the various female party members.
Cowardly Lion: Very scared and panicky, he gets scolded for being the coward of the team. But he is actually incredibly brave when he needs to to fight hordes of demons or a divine being by himself to save others.
Daichi: "You go on ahead. I'll take care of this!"
Jack of All Trades: He's balanced at the beginning of the game and continues at the end with focus on attack and agility. Naturally, he ends up falling flat because of it.
Unless you crack the Multi-Hit (2-7 low-strength physical hits against one target, EACH of which can be critical, with damage-per-hit dependent on Strength and the number of hits based on Agility) skill, and later in the game the Multi-Strike skill (same, except it's 2-7 hits PER ENEMY for the ENTIRE ENEMY PARTY). Toss in Grimore+ (auto ability that makes status effects much more likely to happen) and Stone+ (each hit has a chance to turn the enemy to stone), and Daichi becomes a demon-murdering machine second only to the slightly-stronger, but lower-health Hinako.
Where Are They Now: In the true ending, Daichi resolves himself to look forward to adulthood.
Wrong Genre Savvy: He thinks that, if you pick his route or the Anguished One's if you manage to recruit him, Yamato is so the last boss. Everyone is plain confused at this statement (and you can act confused).
Daichi: He’ll be waiting on a throne in some castle and say, “Haha, well done making it this far!”
Another student at The Protagonist's and Daichi's school whose intelligence and looks have earned her (according to Daichi) the attention of many of her male classmates. Unlike most Shin Megami Tensei games, she is not friends with the Protagonist and his friend, Daichi, before the game starts, and they have just met each other over the course of the game. Despite her reputation, she isn't very assertive and instead tends to go along with what others say.
Action Girl:She has a lack of assertiveness, but this doesn't mean she can't fight.
Badass Boast: If you pick any path beside Neutral she freely delivers these while channeling Lugh's power.
"I vow upon this spear...I will not be defeated. Now... come! Try and break my spear, if you can!"
Boyfriend Bluff: She gets asked out by a punk in Osaka before the Protagonist comes in. Doing this trope is one of the choices to shoo him away, but even so, Io isn't going to mind much.
Not much later, the Protagonist can witness her being dragged away by a well-meaning but pushy woman who thinks Io is a refugee looking for help. Io isn't assertive enough to tell the woman she can take care of herself and one of the options for the Protagonist is to step in and tell the woman he is Io's boyfriend. The woman then lets go of her and tells the Protagonist to keep her safe.
Cruel and Unusual Death: While Devil Survivor 2's deaths are quite a bit more gruesome than Devil Survivor's (where you won't see most of the deaths taking place), Io's death is taken Up to Eleven. After you call out to her, this green substance pours out of her mouth, her body convulses violently for a few minutes and then she eventually explodes, leaving her body in a bloody, gory mess, before her sprite fades away.
And if you're taking a route that isn't Daichi's, she seems to have mastered the power to use this... against your butt, of course. Joining up with her doesn't yield the same result, sadly, although at least defeating her in this form allows you to fuse him.
In the anime, Mizar becomes a Bait-and-Switch Boss by having Lugh become the actual threat of the episode, who wishes to annihilate Yamato for his meddling. Luckily, through The Power of Friendship, Hibiki snaps Io from her possessed state.
Trauma Conga Line: Let's see. Her parents die in Tuesday and she only gets a few words from her mother before she passes away due to her injuries, which then puts Io into an Heroic BSOD until she is slowly brought to her senses. Much later on when you think destiny is being kind to her, she's the only one from the group who needs to face the chance of dying to obtain Lugh's essence, and that puts her back to the Heroic BSOD territory. Even worse is that she can truly die if you don't console her before the mission starts.
The very young leader of the Japan Meteorological Agency - Geomagnetism Research Department, or JP's for short, a secret organization that, in his words, has protected Japan from the supernatural for ages. As a member of the Hotsuin family he has access to the Dragon Stream, a stream of chi that courses throughout Japan. His upbringing has left him with little in the way of empathy or any social skills outside of leadership and administration.
Ax-Crazy: The animes portrayal of him has the reason so many JP members die is because Yamato is using the crisis as an excuse to get the people he deems deficient (or to quote his favorite word, "trash") killed by the droves. What is clear is that not only is he unapologetic about the deaths, they seem to make him proud.
Benevolent Boss: Yes, he is a Jerk Ass. Yes, he treats most of his subordinates as pawns, and yes, he considers most of them expendable. Conversely, he does go the extra mile to support the employees he does find valuable, assigns the less competent employees to things they won't fail at as opposed to bitching them out, and according to Fumi, he essentially handed the research department a blank check.
Bad Boss: On the other hand, the reason he doesn't punish subordinates who fail him is because he doesn't believe they're capable of learning and improving. If you die in his service, you aren't worth a second's thought more for the same reason.
Expy: A cold hearted badass obsessed with a young individual and has quite strange hair will remind many of Mukuro Rokudo from Katekyo Hitman Reborn!.
Four-Star Badass: The JSDF follow orders from JP's without complaint, so it can be reasonably inferred he has the authority to make the JSDF dance to his tune, hence this trope is in effect. That, and he has his own forces (both mortal and demon) that he commands.
Lamarck Was Right: His ability to control the Dragon Stream has been passed down the Hotsuin line for generations.
Sociopathic Hero: He's this to JP's. Specifically, he has practically zero compassion, but he is legitimately good at being a leader otherwise.
This also gets played for tragedy throughout the game. Daichi keeps expressing incredulity at Yamato's lack of a "normal life", and Yamato himself wonders what it would be like, even wistfully accepting a possible invitation by the Hero to learn more about the subject. Unfortunately, this happens a little too late for Yamato to develop enough of sense of his own humanity to reconsider his goals.
Worthy Opponent: Ronaldo will consider him one, though Yamato won't even acknowledge that fact until he's defeated in the Egilitarian route. On the other hand, should he and the Hero be at odds, he would consider him a worthy foe.
Following on the Evangelion-like structure of the plot, Yamato fills the role of Gendo: A genius young, cold and manipulative leader for the secret organization battling the Ange- errrr, Sepentriones, who is aware of the full story behind it for the entire plot, holds the keys to most of the plot's secrets, and is planning to use the powers behind it to advance his own agenda. Character-wise the two are somewhat different, however.
Berserk Button: Choosing any route beside his own makes him throw a nasty tantrum in Daichi and Alcor's route particularly because he convinces himself that the protagonist was poisoned by the others to make him side with someone else. You can calm him down in Daichi's route at least after you beat him in battle.
Big Bad Friend: In the anime. Where he is the main and final antagonist to be fought, and makes it very clear he has no problem murdering those he considers "friends" to get what he wants.
But for Me, It Was Tuesday: The time when Ronaldo finally breaks into an official meeting to accuse Yamato of how things stand, Yamato casually asks who the hell is the guy, despite the fact Ronaldo and his rather terrorist actions have been causing quite a lot of trouble for JP's till that point.
Child Prodigy: He was taking college level classes at five. Most kids haven't fully grasped how conservation works at that age. Explanation Conservation is the ability to recognize the volume of a material doesn't change when you rearrange it, i.e. when you pour a glass of water into a different size glass, the amount doesn't decrease or increase. Most young children think that it does change, so if you pour it into a taller glass, they say that there's more.
Comes Great Responsibility: In his own, twisted way, he honestly believes this in the anime - he believes all power comes as a trial for those worthy of it.
Crazy Jealous Guy: He does get rather possessive of the protagonist as time goes on but choosing a different route but his own puts this at full force combined with his yandere tendency. The anime decides to take this trope (along with the yandere) and take it up a notch when concerning Hibiki.
Crazy-Prepared: From everyone else's perspective, the sheer amount of fallback plans Yamato pulls out of his ass to fend off his enemies seems like this. However, when the characters in universe stop to consider things for a moment (and Yamato emphasizes), his organization is supposed to kick the ass of anything supernatural that looks at humanity funny, which, given this a SMT universe, is a very reasonable course of action.
He also leads you to a spot where he can easily channel the Dragon Stream to either give him a significant advantage in speed should you fight him in the Law/Neutral routes or create a large field around your starting location that drains your HP and MP every turn in Anguished One's route.
Of course, part of the reason he's so prepared is that he's known specifically about what's coming thanks to Alcor feeding him and his family technology and intel.
Cruel and Unusual Death: In Ronaldo's route. It's easy to think that he just got crushed by the Tsuutenkaku, but if you look closely, he's actually missing the lower half of his body. And he's still alive for a few moments after this.
Defrosting Ice King: He starts off seeing the hero as a pawn in his plans, but once the protagonist starts proving his worth, he starts to notice and praise him for his efforts before he completely starts to open up to only up to the hero. If you choose his route, he's pretty much defrosted only to the protagonist as Makoto points out.
Taking You with Me: When he fails to disable Alcor with the Dragon Stream, he flings himself off the platform, although he appears to disintegrate in midair due to the effects of Alcor's retaliatory attack.
First Name Basis: With the Hero eventually. In the anime, he already calls Hibiki by his first name the minute of introduction.
Friendless Background: The animation even gave him a flashback where tiny Yamato is curiously looking out of the car window at families having fun in a festival only to get chastised because he shouldn't concern himself with such lowly civilian things.
Freudian Excuse: He was born into a high ranking family where is life was already decided for him from the day he was born. He lost his parents at a young age (not like he cared given they may not have been the best parents given his view of the world) and was given extremely high expectations. Because he was forced to be an elite, he was not given the opportunity to socialize with anyone his age making him unable to understand normal people. Finally, he's expected to lay his life down for Japan despite the fact that the people who he's supposed to protect are corrupt, cowardly bastards (demonstrated in the anime). The only person he could associate with is Alcor (and he ends up leaving him when Alcor disapproved of the world that Yamato wanted). It's no wonder he's such a huge Jerkass and difficult to defrost.
General Rock: Yamato is well aware that some of his troops don't like him very much, but he still has their loyalty because he himself is not afraid to get his hands dirty, a fact he explicitly affirms at one point.
Glass Cannon: Has similar stat growths to Io and Makoto, with a huge emphasis on Strength and Magic. To compensate, he is slower than frozen molasses and has the vitality of a wet tissue paper.
Graceful Loser: In the Neutral route, not only will he concede the right to create a new world to the Hero, you can even get him to make peace with Ronaldo, and both will follow him, trusting he has a better idea how to make a better world than themselves. This is rather notable when you remember Yamato popped a cap in Ronaldo's mentor, if possibly only at second hand, and was a total Jerk Ass for most of the game.
Half Truth: He promised to protect Kama. Protect Kama's memory that is.
Irony: He's the leader of an officially recognized government organization and operates with the legal sanction of the Japanese government, yet he's a Social Darwinist who wants a world where the strong winnow out the weak, which makes him a follower of Chaos despite his stated intentions to follow JP's charter to ensure the survival of Japan, which is Lawful.
Made even more ironic in Ronaldo's or Daichi's route when he fights you and both of his demons are Vile Arioch and Remiel. Both of which belong to races that are lawful.
It's even more ironic when you consider that his ideal world rewards those who live by their own strength and not by their connections, yet the reason Yamoto is the head of JP's is because of his family inheritance.
Of course, if he had failed to lived up to family expectations, he would had to kill his way back into JP's due to being disowned. He is probably not above becoming a Self-Made Orphan at all.
His Meritocracy and Social Darwinist world will bring the World back on the path of order Polaris desires.
Of course, all of the above falls apart if the routes in the game are focused more on star sign qualities than traditional Law & Chaos. Then the irony becomes the fact that Cardinal signs (Ronaldo/Aries) are associated with driven, self-motivated leaders, and the Mutable signs (Yamato/Gemini) are associated with the flexible, accommodating reconcilers.
It's All My Fault: A subtle example he doesn't say out loud in the anime but he tells Hibiki that Makoto and Alcor were killed by him. The thing is though that Makoto gave her life for Yamato to defeat Alcor and even then Alcor did a Taking You with Me instead of dying by Yamato's hands making it his choice instead of an actual death. In other words, he's taking the blame for their deaths that was out of his hands. Of course he planned on having everyone else die when he goes to Polaris so they would have died regardless.
Jerkass<->Jerk with a Heart of Gold: He DOES evolve into this if only slightly during the chaos route and neutral route (after you calm him down). His FATE system does involve getting him to open up to others and other people's views.
Not only was Makoto held in high regard for Yamato in the anime, but her death had a significant toll on him when she made a Taking the Bullet against Alcor. Then we learn everyone would die when he goes to meet Polaris as the void consumes everything, meaning she'd die even if she didn't sacrifice herself.
Kick the Dog: While Yamato initially comes off as an Jerkass but competent leader, the first indication of his ruthlessness you get is when you ask him about Ronaldo's missing partner. Yamato outright brags about "disposing" of him, saying that the fool should have never thought to challenge JP's. Turns out the man in question is still alive, having faked his death, so Yamato was either bluffing to intimidate the protagonist or he really didn't know. He's still a useful ally.
Lack of Empathy: Downplayed. The cast accuses him of having no emotions or compassion for the common people who die and his entire merit system lacks the cooperation of the people. By the protagonist talking to him, its revealed he does have emotions but isn't capable of expressing them well. In the neutral route, he acknowledges this flaw and strives to overcome it.
Sadistic Choice: In a sense in episode 11. He could either have everyone die (including him) if he kept the barrier up or let the barrier go and have everyone fend for themselves. Given his personality, he chose the latter to fight Benetsnach personally resulting in Airi, Jungo and Hinako getting killed and Hibiki calls him out on his actions.
So Proud of You: The more Genre Savvy your reactions are to what's going on directly correlates to the amount of compliments he'll give you. In fact, giving him all the right responses more or less will make him your best friend.
The Stoic: Yamato is generally calm and serious throughout the entire crisis only showing annoyance or amusement depending on the situation. But...
Not So Stoic: He's capable of emotions such as when he tries out takoyaki and his interaction with the protagonist in general. In fact, because he's not use to displaying other emotions besides his three default emotions if he's forced into unfamiliar territory, he won't react well at all.
Sugar and Ice Personality: Eventually with the protagonist alone. By the time you near the end he'll be all smiles and praises.
Super Speed: His Agility growth is by no means good (in fact it's pretty bad), but if you battle him, he will channel the Dragon Stream to make his speed ridiculously high, making his turns come around super fast. Not only that, but he will get faster as the battle goes on.
Surrounded by Idiots: If his subordinates aren't as efficient as he'd like, he says this about them.
Taking the Bullet: He pushes everyone off right before the top of Osaka's tower crushes them in Ronaldo's route.
Tragic Monster: While he isn't flagrantly evil nor malicious by deliberate choice, the reason he's such a darwinistic prick is due to have an upbringing that made him an excellent leader at the cost of a more balanced view of how capable humanity can and should be, not to mention learning almost nothing about the concept of compassion. However, if you pick the Neutral route or even the Chaos route, the Hero can help him start to acquire some humanity.
All There in the Manual: The art book mentions that he has a younger twin sister, Miyako, which ties into his sign.
Where Are They Now: In the true ending, Yamato is regarded as a person of high authority among the citizens.
Yandere: Some of his dialogue to your friends when you fight him can be interpreted as this.
"You are the ones that corrupted him!...That ends here. I will slit your throats and see that he comes to his senses!"
In the anime, he tells Io right after Hibiki saves her from being killed by possession of Lugh that he won't let Hibiki die on him because in his own words, "Hibiki is mine." Mind you he had full intention of killing her to prevent Lugh from destroying everything but given his obsession with Hibiki in the anime is taken up a notch...
Younger than They Look: He's 17 years old, younger than the Protagonist and his friends, yet certainly doesn't look, let alone act, like one. Strangely enough, Daichi can tell right away that Yamato is younger than them.
A member of JP's Tokyo branch. She takes her duties very seriously and initially comes off to the Protagonist and his friends as shady and a little frightening. Once one gets past her professional demeanor she is discovered to have a softer and highly loyal, if still somewhat stern, side.
Jeanne d'Archétype: Meets many of the common traits. Surprisingly though, given how common the cause of death is in this game, she does not run the risk of being burned to death. Bonus points for her actually unlocking Joan of Arc as a fusable Hero type demon.
Killed Off for Real: Ronaldo can shoot her to death if you decided to side with him when he breaks into JP's during the 6th Day.
And yes, you're causing her death in that decision.
And much like the other death clips, If you fail to show up in time before the battle's over, she'll be killed before you can intervene.
Magic Knight: Like Io, she focuses on Strength and Magic. Unlike Io, her emphasis is on Strength.
My Master Right or Wrong: While she questions Yamato's motive, she very much is loyal to him (and J Ps) staying with him until the end in many of the routes until persuaded to join the protagonist. She refuses to be persuaded in the anime though.
An expert doctor who works for JP's Osaka branch. She's a very talented doctor ready to do her job in the chaos, and her high spirits keep her always happy. Apart from being a doctor, she has an adopted daughter named Koharu whom she looks out for all the time, even though the added stress of her two jobs fall upon her shoulders.
The Pollyanna: Not as good as Joe is, but she's always upbeat until you bring up how stressful it is to look out after her daughter and work while said daughter is alone in a world full of demons and crazy people.
Shipper on Deck: She makes it a habit to playfully tease Makoto for having a crush on the protagonist while he's around.
Stone Wall: While she focuses on magic her vitality is the second highest stat for her so once she maxes out her magic, then her defense will be higher than most making her an effective healer. Good luck getting through those defenses should you decide to pick a route that doesn't have her in your team.
Teeth-Clenched Teamwork: In the anime, she's held captive by Ronaldo's insurgents to heal his allies. She decides to fight alongside him only because they have a common goal to defeat the Septentriones.
JP's technical expert. She has an all-consuming interest in computers, electronics, and experiments, caring little for anything else, giving her a detached and eccentric air. Even her thinking and reasoning processes are coldly neutral and analytic.
invokedAngst? What Angst?: After being freed from being Brainwashed and Crazy, she wasn't bothered in the least by it, even brushing off everyone's obvious concern for her well being, only later bringing it in annoyance when looking for a picture she lost.
Killed Off for Real: While she does get killed off in the anime, she still goes out like a boss, her final words being, "So this is death?" with a scoff, with the same monotone expression she had from the beginning to the end.
Squishy Wizard: The highest magic in the game countering Jungo in terms of highest attack but her other stats suffer. Once she maxes magic, she'll increase her speed allowing her to move faster in battle.
Techno Babble: She likes to talk very technically about computers that the others can't understand her. But when she uses simpler, shorter definitions, Fumi comments that it's so boring that way.
The Nicknamer: Calls Benetnasch "Benny" and also "Bene-trash" if you take her into the battle with it.
A first-year Nagoya High School student who joined JP's Nagoya branch to fight demons. She's an extremely Fiery Redhead, but deep down, she cares for others even though they annoy her a lot indirectly. She hides a dream that she let go due to financial issues with her family.
Disappeared Dad: She doesn't know much about her father or what happened to him. He was a detective who worked with Ronaldo, but he was killed by Yamato for trying to uncover his organization's secrets.
Friendless Background: She's a bit arrogant, but Hinako discovers she doesn't have friends to visit the local Nagoya mall. It might be because she thinks people don't come to her level at the school she's attending. She should definitely join the Protagonist's school.
Get A Hold Of Yourself, Girl!: She tries to stay behind to defend the concert hall she used to participate at from a crowd of demons, but Makoto slaps her to make her leave the place.
I Coulda Been a Contender: She was a piano professional before, but she gave up the dream because her family's financial status couldn't support it. The true ending gives her the chance to pursue her dream at last, though.
Though she's not so lucky in the anime during Episode 11, dying by the exploding Dubhes.
Lightning Bruiser: Airi stats are balanced like Daichi but she's faster than him and has good magic that allows her to use magic spells better than attack but unlike Daichi who can get outclasses by Hinako in everything he does, Airi is able to be fast and use magic while still being able to take a beating.
Megaton Punch: Jungo is one the receiving end of these a few times.
A young chef living in Nagoya. Simple-minded in how he views the world, he is intensely loyal towards those he considers to be his friends. It's strongly advised that you do not hurt one of them or else you'll probably die with a punch. Otherwise, he's always ready to give chawanmushi.
Adorkable: Especially when he's half asleep, or fathering an injured cat, or just being friendly and offering(/pushing) chawanmushi or other bizarre foods to everyone.
Always Save the Girl: In the anime, Jungo has a habit of saving Airi over everyone else in the party and has prevented her death multiple times. Sadly, even in his dying moments, he tried to save Airi but failed and ends up dying with her.
Badass: He proves this in his very first scene, where you get to watch him punch out rioters and break their cell phones.
Beware the Nice Ones: When not kicking demon ass, he wouldn't hurt a fly. When pissed, he's basically wrath incarnate and won't remember what happened when he was curb-stomping enemies.
Does this in his intro and when defending his pet cat.
A high school boxer from the city of Osaka. He prefers to work alone and is rather dismissive of other people. Despite his cold rejection of others he is all-too eager to be a demon tamer, and often runs into situations without thinking.
Taking the Bullet: In the anime, Keita is thrown down the stairs by the force of Botis's Ziodyne when he tries to save Hibiki. Instead of a long fall, he gets electrocuted to death by the blast, which is arguably worse.
A young woman from Osaka who is studying various types of dancing styles from all over the world. She has a very upfront personality and will always come to the aid of those who are suffering or in danger, regardless of the danger posed to herself.
Adaptation Dye-Job: The white part of her outfit is simply white in the anime, as opposed to having blue floral accents like in the game.
Attention Whore: Minor example. She wears that outfit because she really likes getting attention from the guys, even though the weather's too cold for it. She won't change clothes, because otherwise she'd just be "another boring girl with glasses." If you peek in on the girls' physical, she's quite proud of her bust size and will later fish for complements from the MC.
The Big Guy: She is noticeably taller than most of the other characters, and this is her combat role in a nutshell.
Boke and Tsukkomi Routine: The protagonist can play the boke in all the conversations in her Fate route, and she's perfectly happy to play along with the joke before delivering the tsukkomi.
Boobs of Steel: She doesn't actually have the biggest rack of the group (that honor goes to Fumi), but she is still stacked enough for the dialogue box to identify her as "buxom woman" before she introduces herself, and her stat growth focuses solely on strength and agility.
Actually, Joe fits the general goofball Kansai stereotype better than her. She fits more into the fiery, argumentative, haggling Osaka stereotype.
Idiot Hero: She has the reckless tendencies of one, but that's about it.
I Just Want to Be Special: Subverted: She gets the attention she enjoys as a talented dancer, the "special" she desires to be is someone that can actually help people during the crises occurring in Japan.
Impossibly Cool Clothes: There is no way that outfit is anything other than custom made, and its a mystery how Hinako doesn't suffer a clothing malfunction.
A clothing malfunction is not weird in this spin-off, funnily enough. Why, Hinako may as well be an Expy of Haru just because of this.
Jumped at the Call: Given that you run into her on your first (full) ingame day, it couldn't have been long since she became a demon tamer. Nevertheless, she's already protecting people wherever she can, and she asks if she can join JPs the moment you meet her.
Magikarp Power: Fairly bad in battle for most of the game, with an unfocused blend of strength and Magic, poor vit and an agility stat that seems much higher than needed, but when you crack MultiStrike, an abusively powerful move that hits all enemies multiple times based on agility (up to seven hits each), you'll find Hinako's stats are PERFECT for using this skill at devastating power, her ridiculous Agility resulting in her going first and wiping out many mobs before they can act, her magic JUST enough not to be crippled by magic hits and to spam Diarma so she can keep doing this, and Vit being a dump stat she no longer needs..... She'll go from being lackluster to being by far your best damage dealer.
Stripperiffic: Lampshaded a few times. She mentions on Thursday that she's freezing (as the game takes place in late autumn/early winter), and Airi even goes so far as to call her a slut at one point.
Plucky Girl: She develops a subtler side of this at the end of her Fate Route. When she visited her parents, she found them staring dejectedly at the rubble of their former home and dance school, but Hinako snaps them out of it because things could have gone much worse.
Shipper on Deck: Towards the end of Io's event chain she and Airi try to get Io and the Protagonist alone together.
Taking the Bullet: She defends Hibiki from a Merak Missile in the anime. Although she appears dead, it looks like she made it by the end of episode 4.
Confirmed to have survived the fatal injuries by Episode 7.
Take Up My Sword: In the anime, she takes the dead Keita's Berserker to her arsenal of demons, making it her powerhouse.
What the Hell, Hero?: Gives one to an SDF soldier who wouldn't leave his assigned post to help an obviously distressed civilian.
She's also the team member most likely to call out Yamato over his more dickish decisions.
A salaryman that the Protagonist and his friends run into shortly after witnessing Tokyo's devastation. Fond of teasing and corny wordplay, his personality is very laid back and good-natured. However, his cheery facade conceals secrets that he avoids talking about at all costs.
Brought Down to Badass: Crossed with Badass in Distress when he loses the ability to summon demons one level when his cellphone battery dies and you have to rescue him. The reasons he's still badass is the fact he still keeps his cool even while watching demons kill people left and right and, if he's attacked, he's still tough enough to take a lot more hits than the average civilian.
Heartbroken Badass: He becomes this after his ill girlfriend dies in his Fate route, but he resolves himself to not be late for anything ever again.
Do Not Call Me Paul: He really doesn't like his real name, greatly preferring to be called Joe.
Fragile Speedster: For most of the game, he focuses on agility more than anything else with magic being his second ability. Because of this, he'll almost always attack first in battle, but he doesn't have a good defense so he'll go down if he's not dodging physical attacks or if he doesn't kill the opponent first.
Expy: Seems like a more mature version of Junpei Iori from Persona3 who is struggling a happy ending with Chidori, right?
Jumped at the Call: Averted at first, as he originally had no idea what he was doing, but after you clue him in on Demon Summoning 101 he takes to it like a fish to water.
Of the "socially invisible" variety. If you join Daichi in spying on the girls' physical, Joe speaks up at some point. He's been standing there in the open the whole time and doesn't bother lowering his voice, saying that at his age he's learned to "just fade into the shadows."
On the other hand, if you don't choose to spy on them, Daichi later accuses Joe of blowing it by knocking something over.
A private detective who fights in the pursuit of justice. He views Yamato and JP's as evil and in the wake of Japan's devestation rallies activists against them in the city of Nagoya. His strong sense of justice often blinds him of what's more important, often driving him to commit immoral acts.
Suicide by Cop / Taking You with Me: He tackles and pins Alcor down with his body. Alcor responds by frying him into nothing. He also tries to shoot Yamato with a blast from his cellphone. Yamato dodges it and sends a retaliatory attack at him that knocks him off a bridge and into the water.
Enemy Mine: Not long after you first fight him, he's forced to team up with JP's to fight a mutual enemy.
Friendly Enemy: Develops shades of this to the protagonist and Makoto, as he realizes that they're honorable people on the opposite side and questions them as to why that is. Once the protagonist encounters him outside of a battle, they decide they should pool their resources and perspectives to figure out what's really going on. This falters on Friday, and again on the Chaos and Kingmaker routes.
Irony: He's the leader of the those who have rebelled against JP's and initiates many acts that could only be called terrorism against them. He also has no qualms hacking JP's servers, stealing their files, and supporting insurrections that keep them weak, divided, and otherwise hamstrung, despite the fact they are to some extent what has kept most of what's left of Japan from coming unglued, which is textbook behavior for a member of the Chaos faction. However, the end result of what he hopes to achieve would make everything he did up to that point beyond criminal in a world governed by Law.
A key part of Chaos is favoring emotions over logic. Ronaldo is driven by his compassion for the people, his hatred for JP's, and his desire for revenge. These emotions also drive him to defy the ruling authorities and follow his own feelings over his duties as a detective. It might be logical to just figure out a way to negotiate with Yamato and JP's, but his passion gets in the way and causes much of the friction between the public and JP's. (The other part of that is Yamato's less-than-stellar PR abilities.) With that in mind, it's easy to forget that he's on the side of Law.
He Who Fights Monsters: YMMV on whether you think that Yamato is a monster, but Ronaldo's determination to bring down Yamato turns him away from his original ideals of helping the weak. This eventually culminates in an attempt to kill Makoto in order to damage JP's as much as possible. If you help him, he succeeds. If you refuse, he'll still allow you to join later on. If you reach the end of his Fate route, Ronaldo realizes what's he's been turning into and resolves to be a shield for the weak, not a sword that smites evil. After this, he is considerably more civil toward JP's, even rescuing some of their agents when they're cornered by demons. However, it is possible to see this "redemption" scene beforehe tries tokill Makoto...
Honor Before Reason: He admits this outright in a conversation with Makoto, saying that her reasons for supporting JP's policies of giving food to the people who can help Japan the most (i.e. JP's) are logically sound, but that doesn't make them right. He then goes on to make a "The Reason You Suck" Speech to her, calling her out on asking the population of Japan to sacrifice themselves for the greater good (meaning "sit there and starve while we fix things") while JP's never has to make the same kind of sacrifice.
Locked Out of the Loop: He has no idea about the Septentriones or JPs real goals until Phecda interrupts his preparations for round 2 against the party. Later, his investigations help the protagonist figure out critical information Yamato had been keeping quiet about. The anime pointedly averts the trope by making him a former member of JPs, and thus well aware of the Septentriones.
Mighty Glacier: Focuses on Strength and Vitality. By level 99 they'll both be maxed, but he'll be slower than Yamato.
Revenge Before Reason: Besides hating JP's for not providing resources to the needy, Ronaldo wants to avenge his dead partner who happened to be alive behind the scenes all the time but then ended up dying a "second" time for real if you went ahead with his event. His Fate route deals with this.
Teeth-Clenched Teamwork: In the anime, Ronaldo and his Demon Summoner allies all join forces with J Ps by the end of Tuesday ahead of time, seeing as the Septentriones are a bigger threat. However, he states that the truce will drop after everything's over so he can deal with Yamato, whom he doesn't care in the slightest.
Male Tico voiced by: Shuuta Morishima (Japanese), John Swasey (English)
Tico is the avatar that appears in the popular site Nicaea every time the party needs help fighting demons. They both share the same name, but differ in gender and personalities. It's unknown how their site can summon demons or even show the deaths of any individual.
Ms. Exposition: You get to choose if Tico is male or female at the beginning. Regardless, they will basically serve as the digital avatar of how the Nicaea app (the game mechanics) work. You'll even get a brief summary of what happened at the end of each day from them.
The Nicknamer: Female Tico calls Makoto "Mako-Mako", Fumi is "Foomy", Ronaldo is "Ronny".
She calls The Anguished One "His Excellency", a title usually reserved for extremely important religious figures. This eventually tells us that The Angusihed One is their creator.
Order Versus Chaos: Will constantly, during the end day summary, point out the different sides and where they possibly stand on these, and will remind you to make your own decision who and what causes you might wish to support.
Playboy Bunny: The female Tico for your hero's link to Nicaea, dresses in this fashion.
What the Hell, Hero?: Tico will not hesitate to call out both sides on their idiocy or questionable decisions in the end of the day summary.
The Anguished One
The creator of Nicaea. See "Others".
Septentriones(The Big Dipper)
A group of seven aliens (actually eight) that attack Japan. They collectively form the Big Dipper. Each one of them appears on each day for reasons unknown. They all target Japan because of the towers that set up invisible barriers that keep Polaris' Void from swallowing the country.
All Your Powers Combined: Benetnasch has the ability to use the powers of other Septentriones. This is because he has the a fusion of the other six living inside it. He also has access to the others Elemental Powers...which makes his boss battle really aggravating when he decides to split into four of him.
Taken Up to Eleven in the anime where it fully utilizes the power of the other six. Including making beams and dozens of Dubhes that explode.
Back from the Dead: If you don't defeat both parts of Phecda quickly enough, they will fuse back together to become the original, which will then split again.
Beam Spam: Merak spams weaker beam attacks in the anime.
Blue and Orange Morality: It's implied this is the reason that the Septentriones act the way they do is that they don't recognize humans as being sapient. Alcor, having a human form, can, which is why you can ally with him.
Curb-Stomp Battle: Several like Mizar and Alioth are taken down so easily it's a joke in the anime.
Eighth Ranger Traitor: This is the result of Alcor distancing himself from the Septentriones and Polaris because he started doubting their methods of dealing with humanity, thinking it has more potential than his comrades think they don't.
Expy: Of the Angels from Neon Genesis Evangelion. They're theme-named Eldritch Abominations from beyond the stars attacking Japan individually, incapable or unwilling to communicate, they're all unique and have their own special feature set, defeated in a specific manner by the cast, they're essentially sent here to purge or test humanity's will and one of the last of their number takes the form of a white-haired prettyboy who has developed empathy for the creatures he is intended to destroy. Several also have individual similarities to angels.
Alioth and Arael are both giant flyers that attack the party from space, outside the reach of their conventional weapons. They are both shot down with special throwing spears which have to be specifically unveiled to deal with them.
Mizar and Ireul are both self-propagating shapeless blobs (especially Mizar in the anime). Neither are defeated conventionally by the protagonists, and are instead killed by an outside force.
In the anime, Benetnasch not only looks and acts like Ramiel but performs a role similar to Zeruel, being the unstoppable juggernaut that shatters the status quo and sends things rapidly hurling into a very dark end-game.
And, of course, Alcor and Tabris.
Family-Unfriendly Death: Dubhe blows people up. Merak freezes people with its Circumpolarity, who then shatter to pieces.
Nigh-Invulnerability: Dubhe nulls everything (including Almighty) except Phys, which it reflects, protecting itself from Pierce attacks. This makes it easily the new Beldr when it comes to invulnerability and Achilles' Heel. Phecda also starts out nigh invulnerable but splits into two with one being weak to Phys and the other to magic.
Starfish Alien: Many of their designs take on bizarre objects with some of them being easily mistaken for food such as Dubhe, while Merak looks like half of a starfish. They are described in game as being similar to demons but not quite the same and the same description is used when the Protagonist asks Alcor if they are God.
Stellar Name: All of them are named after stars in the Big Dipper. They also appear in the order of the stars' Bayer designations.
Stuff Blowing Up: Dubhe's balloon-like top explodes once it expands enough. Merak sends out Merak Missiles that explode when they reach their destination.
Tron Lines: Merak, though they're easier to see in the anime.
Wave Motion Gun: Merak's Circumpolarity attack hits anyone in its line of sight.
Why Won't You Die?: Mizar. Not only does he constantly split apart when you attack him, but when you summon the Dragon who bites Mizar and smacks him against a building, Mizar hangs on for dear life, making you having to slowly chip away at his tentacle-arms until he can't hold on anymore. There's something extremely funny about watching this in action.
And to further extend its clinginess to life, the Dragon Stream swallows one half of it, leaving the other half alive as Mizar restores itself. The Dragon Stream, though, chomps the hell out of it for one grand finale.
The Worf Effect: Dubhe suffers this to show off how special Hibiki Kuze is in the anime. With it not even being harmed like it was in the game yet getting defeated by Byakko.
Zerg Rush: Employed by Merak when it came to using its Merak Missles.
A Godlike being who rules multiple universes and is the Administrator of the Universe, through the use of the Akashic Records. It desires to destroy the world and annihilate mankind because they no longer fit the order it envisions.
Aliens Are Bastards: Unleashes the Void on humanity because we didn't live up to his standards. No, we don't mean his moral standards, his professional ones-we weren't evolving fast enough for his liking. That, and he's immensely condescending and dismissive when you encounter him.
The Battle Didn't Count: Every fight against him that involves having Polaris grant a wish reveals that he is unharmed after the fight.
Bigger Bad: In the anime. Where he never appears or is fought.
Broke Your Arm Punching Out Cthulhu: Downplayed in both the cases where he lives and dies. In the former, it turns out he's barely injured from the boss fight but was so impressed by humanity's ability to survive and evolve that he reverses his decision to destroy it and instead grants it a wish. In the cases where he dies, he claims humanity will no longer be able to control demons, but he either has a replacement in the wings (Alcor's route) or turns out to be an Informed Attribute (Daichi's True Ending).
Royal Blood: He inherited Heaven's Throne from Kawkab who inherited it from Vega. Eli will inherit the throne from Polaris.
Schrödinger's Gun: After either Yamato or Ronaldo explains their wish to him in their routes, Polaris claims that's what It wanted the entire time. Or perhaps it's just lying to come across as less antagonistic...
However, this may actually be a Half Truth. Polaris wanted the current world eliminated because it had grown stagnant, so either Ronaldo's or Yamato's vision would have been a change from that, so Polaris may not have had their idea in mind per se, but since it was the stagnation of our evolution that was his motivation, hence why he changes the world to what they want since it's different from the present reality.
A mysterious young man who appears before the Protagonist, calling him the "Shining One" and tells him that one day he must make a momentous decision.He is the administrator of Nicaea and the one behind the spread of the Demon Summoning App. The mystery of his motives are an important thread of the plot from the 4th day on.His true identity is of the eighth Septentrione Alcor, the Sword of Polaris. Unlike the other invaders he has the ability to empathize with others, and has come to like humans and wants to change the world so that they will be free from control. If one sides with him, he goes by the alias of Al Saiduq. If one does not, he becomes the final test before facing Polaris.
Adorkable: The anime ups his clueless personality concerning understanding humans.
Not to say that he isn't already this way in the game, particularly if you choose his route.
Anti-Villain: Despite constantly messing with the main characters and coming off as morally ambiguous on top of being a Septentrione, it turns out that he actually has good intentions. In every route besides his own you end up killing him, and right before he dies he helps you get to Polaris. On his route, after you defeat Polaris, he recreates the world and becomes the essence of the new world.
Part of his reason for antagonizing the party is not on purpose. As he is only attempting to get rid of Yamato who is not using the knowledge he gave him and his ancestors for the good of mankind but instead only using it to fulfill his desire for a Meritocracy. The other reason is to test their worthiness as one of the names he is known by is Al Saiduq.
Apologizes a Lot: A minor example. His sentences aren't punctuated with apologies, but he's very apologetic whenever he fumbles in his attempts to socialize, as well as when he admits to being the cause of humanity's current predicament.. He even apologizes if he falls in battle (as an ally).
Blue and Orange Morality: Even though he's well-intentioned, he seems to genuinely not know why certain things he does upset or unnerve people.
The Chessmaster: He created Nicaea Beta version in order to save people and give them the power not only to avert their own deaths but to defeat the other Septentriones. If you do his route he eventually recreates the world with himself as part of that new world.
Combat Tentacles: This is how he uses his multiple tails in the anime. They're deadly enough to kill Cerberus in one split second.
Dimensional Traveler: This doesn't come into play for the most part in either the anime or the game, but Word of God confirmed that Alcor has the ability to travel between parallel worlds and that he left the current world for a new one by the end of the anime.
The Starscream: If you convince him to side with humanity and rebel against Polaris.
E.T. Gave Us Wi-Fi: Alcor taught the Hotsuin family summoning spells in the past in order to protect humanity. He also mentions that he gave man fire, language, and culture in ancient times.
Expy: Of Lucifer from Shin Megami Tensei II, someone who truly cared whether humans lived or died, and had plans which had humanity's survival as their cornerstone.note Contrasting him to Shin Megami Tensei: Strange Journey's Lucifer, who just wanted to spite YHVH. They are so similar that Lucifer is the demon you unlock when you max his Fate.
And of Igor, judging how he created the Ticos and Nicaea. The fact he helps humanity as a whole, especially the Protagonist, make the point even clearer.
Also of Prometheus in that he gave Humans fire, language and culture. And he calls himself the Anguished One.
As well as Remiel, being a genuinely compassionate member of an otherwise antagonistic force who wants what's best for humanity.
And finally of Naoya, for making the Demon Summoning Program for the heroes so that they have a fighting chance, for being a character that joins only in his own route, and for appearing periodically to give information.
Going outside of the SMT series, he's pretty much a straight-up Expy of Kaworu from Evangelion who is theFountain of Expies for the mysterious, protagonist-fascinated character. The AT-field looking pattern on his tunic makes the inspiration even more blatant.
Gravity Master: Displays this in the anime when dealing with Botis. Who he easily tosses around and crushes into a ball.
It's All My Fault: Blames himself for what Polaris plans to do to humanity since he gave man culture, language, fire, etc. in ancient times.
In the anime, he feels like its his fault that Yamato is taking the path he's taking because of how of his influence to his family. The game does touch on this though with Yamato yelling at him during Alcor's route.
Taking You with Me: In the anime, he tries to take Yamato with him but Yamato miraculously survives.
Leitmotif: The Anguished One. Mysterious and serene, which is fitting for him. If you are observant, you may remember that the theme also played when you registered at Nicaea, hinting their connection.
He's the boss of Botis, Bifrons, and Tico. His role in as Botis' boss and the man behind Fumi's brainwashing isn't spelled out unless you avoid killing Botis when freeing Fumi, though.
He's also the one who gave JP's and the Hotsuin family all the info and technology they needed to resist Polairs. His antagonism towards Yamato derives from Yamato rebelling against these gifts for humanity's general benefit.
Lastly, he's this trope for the human race as a whole because he's the one who gave us civilization.
Manipulative Bastard: A VERY odd example that, even if he IS manipulating everyone into doing what he wants, his machinations will benefit those he's manipulating with no overt positive effects granted himself, and if called on it, he's either very good at lying or truly didn't realize how underhanded yet positively benign his schemes were/are.
Meaningful Name: He goes by the alias "Al Saiduq" in his own route. It's a variation on Al Sadak (which is his alias in the Japanese version), and not only is it another name for the star Alcor, but it means "The Test"; and he tests the human characters constantly.
Mr. Exposition: He knows a lot, and he's quite generous about how much information he gives.
My Greatest Failure: Feels like not having Yamato change his mind about his merit system is his fault because he felt like he could have saved Yamato from himself.
No Social Skills: While he's a lot kinder than Yamato, he's not exactly human, so he may do things that seem odd or unnerving to the other characters; for instance, he doesn't seem to understand that humans aren't accustomed to someone suddenly appearing behind them. He's often apologetic, however, as when you call him out for eavesdropping on the conversation in one of Airi's Fate events.
Anguished One: ...Was that rude? I'm sorry. I'm rather careless about human customs.
Offscreen Teleportation: Happens a lot in the anime. Whenever the scene changes, he's usually a few meters from where we last saw him, and characters looking away for a split second is enough for him to disappear.
One-Winged Angel: If you take to long to beat him he transforms into a new form that reflects magic, resistant to almighty, and is weak to phys. Lest you believe this is an opportunity to gang on him with physical attacks, he also gains Chaos Stir, a passive ability that lets him counter every received attack with an identical one against the assailant that's twice as powerful as the one that was used on him. He will eventually return to his original form and summon more demons..
Only Friend: Declares Yamato one in the anime and technically was one for Yamato even if he doesn't admit it.
Order Versus Chaos: Takes a fourth option and combines the best of both if you choose his path. It's interesting in that Alcor himself appears to be themed after Chaos, with the Chaos demons Asura and Lucifer being unlocked through leveling his Fate. Not to mention his clothes/true form are red and black, which are usually the colors of Chaos.
Alternately, his path can be seen as a different Chaos path, since his ultimate goal is to free humanity to develop its own potential, a goal that focuses more on freedom than Yamato's Hierarchy.
Standard Status Effects: He inflicts the unique Ill-starred effect through his Ominous Star attack. It adds 200 additional damage whenever a character is hit.
Stealth Hi/Bye: He's REALLY good at doing this, to the point that on his route, the Hero can get seriously unnerved and can actually break his usual stoic character to damn near beg him to quit surprising him like that. He also tends to vanish into thin air after talking with the protagonist before the split in routes.
Stellar Name: His real name is Alcor, which is the companion star to the Big Dipper's Mizar.
Supreme Chef: Apparently he can cook well according to the anime. This is because he can manipulate food on the molecular level, being who he is.
Time Abyss: Comes with having existed long before humanity came into being.
Daddy Had a Good Reason for Abandoning You: He had to fake his death after looking to closely into the actions of JP's. Throughout the week he appears in various events helping people and befriending the protagonist. He eventually gets killed by demons and spends his last few moments thinking of his daughter and makes you promise not to reveal that he was actually alive.
Killed Off for Real: He died twice; the first one was an implied public death to all the people he worked/lived with, and the second one was truly a death scene for trying to help the Protagonist by summoning a powerful demon that later killed him in battle. Reaching this conclusion does earn you a Fusion recipe for that very demon that offed him...
Named Botis, Bifrons, and Black Frost, they are the servants of the Anguished One. Both Botis and Bifrons appears as bosses during the story and if they should die in those battles then Black Frost will take their place in the battle on the last day.
Adaptational Villainy: Botis in the anime especially his willingness to kill Alcor for having a difference in opinion.
Ars Goetia: Both Bifrons and Botis are Goetia demons.
Axe Crazy: Bifrons really likes to kill humans. His master is the only thing keeping him under control.
Bad Boss: Bifrons threatens to kill his demon minions if they don't obey him.
Curb-Stomp Battle: Bifrons wipes out all the demons Ronaldo's men summon in a single attack in the anime.
The Dev Team Thinks of Everything: Yes, you actually can kill Botis and Bifrons during your first fights with them (though likely not until new game plus), and yes, the fight against the Anguished One in any route not his own does accommodate for this.
Mind Control: Botis does this to Fumi and has her hack JP's database in order to find out what Yamato is up to.
In the anime this is changed to him using her to open the barrier so a Septentrione can enter.
Noble Demon: Botis is different from Bifrons in that he does not like to kill humans and follows his masters orders to the letter. He only fights the Protagonists when he has no choice and on the last day as part of the test. He will even congratulate the Protagonist for beating him on the last day.
No Sell: Botis can use Shield All during his fight. So he'll be able to null everything but almighty.
Smug Snake: Bifrons thinks he is a Smug Super and mocks the humans for being puny before killing them. Makes more sense in the anime since they don't fight.
Took a Level in Badass: Both Botis and Bifrons are a lot more powerful on the last day than they were earlier in the story.