Maou is the protagonist and, as his new name suggests, the former Devil King. After being defeated in Ente Isla, he withdrew with his remaining general, Alciel, to a new world where he would recuperate and regroup. Unfortunately, this new world does not possess magic, reducing him to a mere employee at MgRonalds, slowly morphing into a rather nice (if snarky) person.
Affably Evil: Maou is snarky but generous and friendly even when plotting world domination.
Bishōnen: Maou's human form looks like a handsome teenager.
But for Me, It Was Tuesday: Maou's forces destroyed Emi's village, but he just gives a vague apology for his lack of understanding about humans back then, as well as lack of complete control over his underlings, without having the slightest idea of what particular incident she's talking about. He's sincere, but it's obviously not really a big deal for him.
Celibate Hero: Well, "hero" may not be the best word, but the great Demon Lord clearly has no interest in pursuing a romantic relationship of any kind. Sorry, Chiho.
Compelling Voice: A hypnotic voice is one of the only powers Maou can use with his magic as low as it is and even then not much.
Crouching Moron, Hidden Badass: It's easy to forget that he's a powerful demon lord after his time on Earth robs him of the dignity and atmosphere such a title as 'Maou' merits.
Curb-Stomp Battle: In the middle of a fairly even fight between Lucifer and Olba versus Emilia and Alsiel, Maou pops up, slams the injured Olba through a wall or something, teleports to Lucifer and oneshots him with a very powerful punch.
Everyone Calls Him Barkeep: Technically, "Maou" means "Devil King". In Ente Isla, humans refer to him in two syllables ("Ma-ou"), thus referring to his title. On Earth, they use the first syllable ("Mao"), thinking it is just his surname.
Evil Overlord: Formerly, and currently trying to reattain this status.
From Nobody to Nightmare: Many would be surprised to learn that Maou wasn't always the overlord. In fact, he was at the very bottom of the demonic pecking order, until his life was saved by an angel — Emi's mother, Laylah. While he was recuperating, she tutored him in various things to pass the time, mainly politics, diplomacy and, most importantly, the proper use of military power. This knowledge was obviously put to very good use. Whoops.
In Episode 5, Maou figures out who the villains are and their motives as soon as he meets them, explicitly comparing them to a B-movie. This is despite only being on Earth for a few months (which is immediately lampshaded by Ashiya)
In the middle of his battle with Sariel, the latter decided that it'd be a good idea to rush towards Chiho and hold her hostage... only to be sent flying by Chiho. Turns out it was actually Maou in disguise, who was one step ahead.
Going Native: Takes to Earth life like a duck to water. When he actually does attain enough power to get back to Ente Isla, he forgoes it — he has too many shifts that month. After the battle with Sariel, he does the same thing to fix the damage that their battle caused.
Good Thing You Can Heal: As a human, Maou sustains some really nasty, and occasionally outright fatal injuries, but as soon as he regains his demonic powers, he's immediately good as new.
Hellish Pupils: Maou has red, slitted eyes which are about the only trace of his demon nature that carries over to his human form.
Heroic Build: Whenever he gets his magic back, he also becomes completely ripped and he ends up destroying his shirts in the process (In the anime, anyway — in the manga, while he gets his horns and hooves back, he doesn't get the build the first time it happens).
Horned Humanoid: The first clear sign that this new world has something wrong with it (from their perspective) is that Satan's horns have vanished. One of his horns has been cut partway through by Emi.
Mage in Manhattan: Maou still has a goal of taking over both worlds. By climbing up the wage slave ladder, apparently.
This is actually Fridge Brilliance if you look at his backstory. He was once the bottom of the demonic pecking order, but was able to work his way up to being the King of the Underworld. So it's probably something he is very familiar with doing (Besides since he's immortal, he has all the time in the world).
Nice Guy: Maou, the former Demon Lord. He's kind of snarky, but even in the first episode he's willing to hand over his own umbrella to a girl he doesn't know and doesn't expect to see again.
Noble Demon: He really embraces his role as the Demon Lord, opposition by the Hero and the sacred church included. However, he refuses to involve innocent people in the conflict and tends to sacrifice his own goals in favor of preventing too much damage from occurring around.
Pragmatic Villainy: At the very least, he claims that he fixed up the town after the fight with Lucifer because it would make Emi's allies see him as a good person and be reluctant to attack. Given that they were much stronger than him at the moment even if he didn't spend that power, it would be suitably pragmatic even if you assume he really didn't care about the town.
Satan: Maou's actual name is Satan, though most people refer to him by title. When he has his magic power, he looks like one of the classic images: cloven hooves, horns, massive bulk and a transformation from Bishōnen to Hunk.
Satan Is Good: Or rather, Satan Has Good Intentions, Kinda Sucks at Keeping the Ground Troops In Line, and Has the Same CognitiveBiases the Rest of Us Have.
"Well, I mean... I was really busy during that time. I couldn't be everywhere at once, so... And I'm not trying to say it's not my fault, but... I mean, demons and humans naturally just don't get along with each other, right? And back then I didn't really grasp the concept of humans, so..."
Serious Business: Maou takes his part-time job very seriously. In fact, in the anime part of the reason he blew his cover to Emi is that he was considering using magic to heat up some fries after the fryer broke. He was angrier that Lucifer might make him late for work and make him miss being employee of the month than that the latter was trying to kill him and destroyed part of the city.
Smug Smiler: Pretty much a job requirement as a Demon Lord.
Sorcerous Overlord: Despite the imposing physicality he has in his demon form, Maou favors ranged magic over close combat.
Superpower Lottery: His true form provides Maou with unbelievable power, though the exact amount varies depending on how much fear and dismay he has access to.
Super Toughness: Even without magic, he's able to weather some pretty powerful blows including magical explosions, being blasted through walls or falling from lethal heights. The attacks hurt, but don't do nearly the damage you'd expect for someone with a mostly human body.
Take Over the World: Ente Isla and Earth - he's just planning on less destructive methods this time around. The link he somehow establishes between working his way up MgRonald's and taking over the world is flimsy at best.
Villain Protagonist: He still intends to retake Ente Isla and now conquer the Earth, but in a less destructive way.
Why Do You Keep Changing Jobs?: In the light novels, before settling down at MgRonald's, he took a variety of odd jobs within the first six months of his self-imposed exile on Earth.
Emilia is the Hero of Ente Isla. After defeating Maou, she tracked him down to Earth to stop his inevitable return, and learned just as he did that magic doesn't work too well. Seeing that Maou isn't causing any trouble, she begins to keep an eye on him while working as a call center agent (having faked her age to get it). Frustrated by Maou's apparent abandonment of his evil ways, she's at a loss for what to do.
Action Girl: Emi appears to have galvanized the resistance to Maou with her sheer strength, determination and charisma. In direct combat, the two are viewed as being roughly equal and well above the likes of Maou's generals or Emi's group. Unfortunately, in the second novel she does come into conflict with someone that is her worst possible opponent even though he's supposed to be on her side and gets taken captive as a result.
A-Cup Angst: Emi is particularly jealous of Chi's... pair of one-pound hamburgers, to say the least, although she hastily tries to console herself by babbling about how being big isn't helpful in battle, and that being small means a cheaper plate armor and greater agility. When Emi first meets Suzuno, she looks at the other girl's chest while sighing in relief that she's "just like me".
Adaptation Dye-Job: In the novel, Emi's eyes change from green to red when she powers up. In the anime, they remain the same. This turns out to be an actual oversight on the production's part and was corrected in later episodes. However, the actual shade of green is different from the novel anyway.
Angrish: She can degenerate into convoluted raving when sufficiently angry.
When Emi confronts Maou on acting so nice on Earth while he and his forces caused so much damage in her world, he gives a response of 'Ah, my bad, I wasn't really watching over my forces well enough. ...Besides, humans and demons never got along anyway.' The manner of delivery and the harshness of Emi's reaction vary by medium, but she's clearly pissed that he's not really accepting that much personal responsibility for the death of her father.
On a lighter note, she also gets very irritable when it comes to her breast size.
Berserker Tears: Downplayed. Emi has a tendency to start crying when she gets truly furious, which does not help her dignity at all.
Black and White Insanity: At the beginning, as far as Emi sees the world it really is just your classic, cliche 'hero fights the evil overlord who is trying to take over the world for no reason' kind of story. However, when she's forced to take another look at the situation she realizes that it's not good versus evil but rather one nation against another and neither one is exactly morally spotless: Maou's generals rampage across the land attacking civilians while the Church leading the fight against him manipulate from the shadows as well as poison, plot and betray their way to power. She's pretty upset when she realizes the world isn't that simple, but gets over it quickly enough.
Bridal Carry: Maou in his true form saves Emi from a fall this way. She immediately wants him to put her down.
Butt Monkey: In Ente Isla, Emi has dignity. On Earth, she's the most common butt of jokes. The stairway of Maou's apartment has it in for her, she constantly forgets she's in public when talking about her identity and Maou says it's his personal duty to annoy her.
The Cape: She manages to hit almost every point in the trope. She's honorable enough that she refuses to attack her most hated enemies if they can't fight back and she's virtuous enough to work against former allies and friends to do the right thing. When Suzuno indicates that should the two of them team up to take down Maou, Emi would be able to return to Ente Isla immediately and be a hero, Emi refuses immediately: It would be wrong to work with the faction that Suzuno represents, it would be wrong to attack someone that is doing nothing wrong, Suzuno's group is using antiheroic means at best and she doesn't even care about being rewarded in the first place. That said, however, she's sarcastic and rude in her personal life.
Cry Cute: At the end of Episode 2's Closed Door Rapport moment, where her pathetic inability to get past the locked door of Maou's house reduces her to a sniveling mess before Maou finally lets her in. At the end of the same episode she can't help but cry in shame after she was forced to accept Maou's generosity in allowing her to stay for the night after losing her purse.
Daddy's Girl: She loved her father, Nord, a lot. She even said that to her he was a hero.
Doomed Hometown: As seen in a Flash Back during Episode 4. Shortly after she's taken in by the Church, the demons attack, and she assumes her father died after her town was sacked. This was the main motivation for her to take up being a hero and destroying the demon forces.
Going Native: Not at first, but after a couple of months and few meltdowns, she loosens up and starts to enjoy life on earth. She would never admit it of course.
Good Is Not Nice: Though she does her best to live up to her title of the hero in every sense that she can, she's also rude, petty and returns a favor from Maou by breaking the umbrella she borrowed, though she does grudgingly replace it later.
Half-Human Hybrid: The reason Emi was trained to be a Hero is because her mother was an angel, and her father a human.
He Is Not My Boyfriend: Emi's blushing and actions do little to help her case that she doesn't love Maou, though Chiho is let in on the secret at the end of the first novel and Episode 5.
Hypocritical Humor: And self aware enough to know it too. After sneering at Maou for being broke and with a mundane life and job, we then cut to her next day at work at a call center, after which she buys some chicken that's on sale and goes home to her normal apartment and watches bad TV before exploding that she's doing the exact same thing Maou is.
I Choose to Stay: After the first arc, she opts to stay in Japan under the pretense of keeping an eye on Maou. Of course, she's probably not in any hurry to return to Ente Isla, since she'd likely come into conflict with her former allies.
Idiot Hair: She's not stupid, but she's rash, aggressive and emotional.
Ignored Enemy: Maou takes Emi about as seriously as an abandoned kitten, all pity and no fear.
Incorruptible Pure Pureness: Though motivated in part by revenge, she refuses to seek it when she sees her targets aren't actually doing anything wrong. Further, her purity serves as an example to the better parts of the human side and caused the Church to see her as a post war liability since she'd be appalled by their scheming and corruption. When confronted by the complexity of the situation she refuses to side against Maou... but she also holds onto her moral convictions by stating that he has done wrong and must be brought to justice eventually.
Luminescent Blush: Reacts this way in episode 12, when Maou says he can see her breasts after he rescues her. Her entire head is red.
Magic Knight: She favors direct melee combat, but knows a fair amount of magic as well. When she doesn't have enough power to rely on she can't use her sword to its full extent nor materialize all of her magic armor.
The Magnificent: Emilia The Hero (or Hero Emilia). She had nicknames such as "Holy Knight Emilia", "The Battle Maiden" and "Goddess Knight".
Missing Mom: She always believed that her mother, Laylah, died when she was a baby, but before the church came to take her away her father revealed that Laylah is in fact alive.
Mystical White Hair: When manifesting her angelic abilities, her hair turns white starting at the roots.
Not What It Looks Like: Emi has a good deal of trouble convincing people that she's not Maou's stalker ex-girlfriend.
Office Lady: Emi's new job is less impressive than her old one. Pays better than Maou's, though.
The Only One Allowed to Defeat You: Emi tells Maou about a demon that called her because she insists on being the one to defeat him. An unimpressed Maou points out that she probably shouldn't be talking about that in public.
The Paladin: As the great hero of human and archangel blood destined to slay evil.
Running Gag: Apparently she cannot go down a flight of stairs without falling, as this has happened more than once to her. Furthermore, other characters seem to share the same problem.
It's not her. The stairs outside Maou's apartment are apparently cursed because everyone falls down them at some point. She's just the most frequent victim because A). She's too stubborn to listen to Maou's warnings and B). It's funny.
Samus Is a Girl: The Hero is revealed to be Emi in the end of the first episode. Reinforced by the fact we never see her face under the armor and that the narrator uses gender neutral language like 'hero' rather than stating a name. The manga was less subtle.
Significant Green-Eyed Redhead: Even though extravagant hair colors are common in this series, this color combination indeed marks her as an important character.
Skilled, but Naive: She's very powerful and charismatic, but the idea that her own side isn't completely morally pure comes as a huge shock to her. Maou and her former companions seem to be much savvier than her: Neither Albert nor Emeralda seem all that surprised that the Church was corrupt and Maou picks apart the enemy plot in seconds.
Stalker Without A Crush: Emi does regular stakeouts outside of Maou's apartment and frequently shadows him around town on the off chance that one of his daily errands does turn out to be a nefarious misdeed. She is aware of how bad this looks.
Emi: And, once again, I spent today being a stalker.
Tsundere: Emi is conflicted because she remembers the brutal war, but sees Maou being genuinely kind and helpful. It makes it hard to know how to treat him. She has a perfectly legitimate grievance and almost feels betrayed that he's not acting like a villain. What's more, the tsun side of the personality is exaggerated in the anime, leaving her very unlikely to admit that she at least trusts Maou, even if she doesn't like him.
She gets better though. Later on she does a complete 180 when she finds out that her father isn't dead she drops most, if not all, of her hostility towards Maou. Though she still believes in her obligations as a hero to oppose him.
Tyke Bomb: Emi is definitely the good guy here, but when she was just a little girl she left her family to begin training to be the hero, and shortly afterwards her father was killed. She admits to herself that in the human world with Maou acting so un-evil she's rather lacking in purpose and drive, and doesn't know what to do without her desire for revenge.
Used to Be a Sweet Kid: Before she was taken in by the church she lived with her father and was very sweet and affectionate. Then Lucifer's army burned down her village, causing her to swear vengeance on the demon army.
Villainous Rescue: Apparently, this seems to happen to her a lot. Either it's Maou letting her stay the night at his home, and give her money for train fare when she loses her wallet, to having Alciel saving her from taking a fatal blow in Episode 5.
Willfully Weak: When she said she could kill Maou at any time during their first confrontations, she meant it. However, doing so both seems morally unjustified and would leave her stranded, so she resolves to keep an eye on him until he does do something wrong.
Worthy Opponent: Though Maou doesn't take her seriously a lot of the time, she actually says at one point that while she could have killed him easily, it would be beneath them both to do so when he couldn't fight back.
You Can't Go Home Again: Neither Ente Isla, nor her hometown, which was burned to the ground by demons. Though in the case of the former, she had enough power saved up that she could have returned anytime she wanted, at least in the first arc/novel. This may still be the case in later arcs but.... well, see I Choose to Stay.
You Have Outlived Your Usefulness: The Church had planned to make her into a Martyr by end of the war; either she would be killed in battle or, if that failed, they'd quietly off her once it was over.
You Killed My Father: Emi's main motivation for becoming The Hero, since Maou's forces razed her village shortly after her father sent her with some church officials to train and fight against the demons.
Alciel is the last of Maou's four demon generals, as well as the most loyal, following his lord's escape to Earth. He tends to be more disdainful of humans than Maou, but because he is utterly loyal he follows his lord unquestioningly. Well, almost unquestioningly, as he tends to get exasperated at Maou's poor spending habits.
Affably Evil: He believes more strongly in acting like a proper demon than his boss, but quickly settles into the role of an extremely polite House Husband.
Apologizes a Lot: He is constantly doing this, feeling he's not worthy of Maou's constant kindness.
Badass Cape: His general's mantle from Ente Isla. He even goes back to his apartment in the middle of a fight to go put it on. He does it again in episode 12; however, he gets to the battle well after it's been won, and Maou immediately asks why he even bothered to show up at that point.
Nigh-Invulnerability: Can withstand blows from even Emilia's sword with nary a scratch. The novels state that he does not actually have much magical talent, but he proved his worth even amongst the generals just by how hard his body is.
Older Sidekick: To Maou who is only about 300 years old compared to Alciel's 1500.
Villainous Fashion Sense: Despite being almost killed by Lucifer and having his magic temporarily restored, Ashiya still took the time to go home and get his battle armor and cape before confronting the traitor. Then again, given that he has a tail as thick as his legs and it rips through his pants...
He ends up missing the battle in episode 12 because of this.
Chiho is Maou's coworker at MgRonalds and has an obvious crush on him. She sees Emi as a rival due to not understanding the full situation. Contrasting the other three main characters, she's very sweet, innocent and above all completely normal.
All Love Is Unrequited: Maou does care for her, but it is obviously in a nonromantic way. It becomes a running gag.
Cat Smile: Chiho displays one in the first episode, after being told by her manager not to spill fries again.
Green-Eyed Monster: Her frustration with Alciel being closer to Maou than she is helped power up Lucifer's magic when he was using her as a battery. She even knew that Alciel wasn't any kind of competition romantically, but because she's not close to Maou herself Alciel is nearly killed.
Smitten Teenage Girl: She develops a huge crush on Maou without knowing anything about him except that he's handsome and competent. While mostly portrayed positively, she does tend to get jealous and possessive
Lucifer is one of Maou's former generals and was believed to have been killed by Emilia. However, he survived thanks to the intervention of Olba and the two began to scheme for what to do after the war ended. He is a fallen angel and wishes to return to Heaven.
Arson, Murder, and Jaywalking: Wages war on mankind, slaughtering entire villages in the process. Robs people to feed on their fear. Blasts holes through his own former allies in order to fulfill his own selfish goals. Picks up a girl's lost wallet and goes through it for information. And of course, it's this last one that disgusts people. Especially when Emi learns he used up her food coupon.
Extended in the LN: Emi wasn't really too bothered at first... then she realized Lucifer had used up her food coupon! Apparently that crossed the line for her.
Big Bad Wannabe: Tries to throw a coup against Maou in order to return to Heaven, but after about five minutes of success, Maou begins sucking in all the power of the fear and despair around them and taking it away from Lucifer, who realizes he's way out of his league. He gets flattened as soon as Maou gets done with damage control.
Bishōnen: He looks all of about fourteen and has rather feminine looks.
Butt Monkey: After his defeat on Earth, he tends to be dismissed and treated as the butt of jokes.
Easily Forgiven: Betrayed Maou, shot Alciel in the lung, destroyed Maou's heart, attempted to drop Chiho to her death and launched an indiscriminate attack on the city. Further, his army was the one responsible for the destruction of Emi's village. However, after giving him a really nasty punch to the face, he's accepted back into the protagonist team by Maou and Emi overlooks it.
Fallen Angel: Lucifer has black, feathery wings. Though he has fallen, he wishes to return to Heaven and seems to feel the best way to do this is by being a dick and terrorizing people. This is also why he doesn't get sick from eating food with Sacred Energy inside.
The Friend Nobody Likes: Maou views Lucifer as his responsibility and spares his life after the attempted betrayal, but that doesn't mean he has to like him.
Hikikomori: Maou outright calls him one in Episode 7.
He wants to be one out of laziness, but he doesn't actually fear the outside world.
Hollywood Hacking: He can connect to Emi's personal station at her work using a laptop. He can also use the laptop to contact cellphones.
Hoist by His Own Petard: Loses in the first arc because after beating a powerless Maou, he decided to get a little too flashy and terrified the huge crowed around him, restoring Maou's powers. Not even an accident: There was no reason to cause that much damage, but he likes breaking stuff.
Jerkass: He's sarcastic, rude, selfish and keeps trying to spend what little money Castle Maou earns.
Lazy Bum: Loves his new lifestyle as a Neet and tricks Olba because he likes his lazy life.
Manchild: He seems to be the most immature of the cast and as he is a fallen angel he is quite old.
Psychopathic Man Child: When he first appeared, he enjoyed the screams he caused and treated the battle as a big game.
Neet: Maou, Ashiya and Emi are helpful enough to highlight this for potential employers.◊ In episode 11, Emi calls him one after throwing something at him when he tries to get out of helping Maou with selling stuff their landlady mailed home.
Playful Hacker: Developing a fascination with modern technology, Lucifer apparently picked up some computer skills.
Psycho Supporter: Easily the most amoral character in the main cast. He's the one credited with burning down Emi's village and, as something of a favor to her, Maou basically offered her Lucifer's head on a platter at the end of the first arc if she wanted it. She didn't. After, he's kept from doing any damage largely by the fact that he likes being lazy and idle too much to bother switching sides again.
Really 700 Years Old: Though we're never given a specific number, since he's forgotten just what his age actually is. On paper, he's eighteen and doesn't even look that old.
Smug Snake: Arrogantly gloats over a seemingly powerless Maou and plays around. Plays around too long, in fact, and in far too flashy a manner, which ends up backfiring drastically.
The Starscream: Conspires with Maou's enemies to fulfill his own goal of reentering heaven. Unfortunately for him, Maou is far more powerful and once the tables have turned he's absolutely horrified and in way over his head. Lucky for him that he's in a mostly comedic series.
Troll: Look at his face when he hacked Emi's computer, he clearly enjoyed messing with her.
Voiced by:Kanae Itō (Japanese), Alex Moore (English)
Crestia was the First Interrogator of the Reformation (the "Inquisition", in an older definition) of Ente Isla, something she does a poor job of hiding. On Earth "Suzuno" poses as Maou's new next-door neighbor from a traditional family.
Adorkable: Suzuno's clumsy grasp on modern Japanese culture is quite endearing.
Dirty Business: As a member of the Reformation, she's willing to get her hands dirty for the greater good. In episode 12, she seriously contemplates destroying a train station in order to induce enough panic to power Maou with magic against Sariel until Lucifer stops her.
Everybody Knew Already: Maou, Alciel and Lucifer knew the moment they met her that she was from Ente Isla, and, what's more, they knew for the exact same reason Suzuno thought Emi must have. Emi and Chiho, however, were in the dark until she slipped up more directly.
Fish out of Water: Unlike Maou or Emi, she's completely unfamiliar with real Japanese customs or practices and is utterly baffled about things like trains.
Fish Out of Temporal Water: Suzuno actually did quite a deal of research on Japan once she got the opportunity. Unfortunately, all of it came from period dramas, samurai movies, and Showa-era documentaries.
Fist Pump: When Suzuno decides that Emi is the absolute master of social convention in Japan, she begins copying her. Emi spills her cream before putting it into the coffee and Suzuno copies that as well, making a triumphant fist while cleaning it up since she got it 'right.'
Funny Background Event: Keep an eye on her when she's not in the limelight of a scene. She'll either be emulating people's actions down to the errors or reacting to new stimuli with awe.
Living with the Villain: Yes, that AdorkableGirl Next Door is a trained killer. At least until she joins Maou and Emi's side. It is also revealed that the Maou residence knew from the start Suzuno was planning to kill them, but didn't really care.
Master Poisoner: Emi hints that she shouldn't bother: Maou and Ashiya are being friendly, but they're still demon lords. They'll catch on if she tries anything. In episode 11, a Flash Back shows some leaders of a heretical human group who drink some wine, only to then find out it was poisoned by her. She's also been poisoning Maou's household by infusing their food with sacred energy, but none of them actually cared because it wasn't enough to hurt them apart from Ashiya, who ate too much of it. Hey, it's still free food right?
The Mole: She was planted into Maou's apartment building in order to investigate Emi and to attempt an assassination on Maou if necessary.
Self-Serving Memory: When Chiho and Emi get rather apprehensive at the idea of visiting a reptile exhibit, Suzuno casually wonders if you can eat any of them then relates a story about how when she was traveling someone offered her lizard meat and she was unable to refuse. Listening to the tone of her voice and what she says, you'd think it was just a novel experience that ended up being pretty tasty. Watching the replay of the event, she's clearly disgusted at the idea, extremely hesitant and finds the food revolting.
Stronger Than They Look: Easily carries a box of udon Maou struggles with. In a Flash Back during episode 11, she is seen wielding a giant hammer, which helps to explain her strength.
These Hands Have Killed: In a Flash Back during Episode 11, we see that she has killed people, although it was due to her job as Inquisitor. When she started questioning the morality of her job, asking Olba why the Church never made negotiations with the heretics in the first place, he shrugs her off by telling her to focus on the task at hand.
To Be Lawful or Good: She's a lead member of the not quite dismantled Inquisition (Law) but has long gotten sick of it at all and admires Emilia's (Good) methods, a scenario that comes to a direct internal conflict near the end of the second arc. It looks at first like she's choosing law by siding with her superiors Sariel and Olba, but she actually wants Maou to beat her and continue on to defeat Sariel as well. When she realizes Maou is too drained to even beat her, she stands aside and attempts to sabotage Sariel.
Yamato Nadeshiko: She acts extremely formal and traditional. Not necessarily because she's actually like that, but because her head has been filled with ancient ideas about Japan and old dramas. Even after being corrected about modern society, she's already gained a preference for acting/speaking formally, being traditional and wearing kimonos.
Voiced by: Katsuhisa Houki (Japanese), Mark Stoddard (English)
Olba is one of the six Archbishops of the church in the world of Ente Isla. He wields sacred magic like Emilia and attempted to follow her through the gate, but apparently didn't make it in time.
Bald of Evil: Completely devoid of hair, like how his character is devoid of redeeming qualities.
Et Tu, Brute?: Upon his defeat, he calls out Emilia for stopping so low as to work with demons. Everyone immediately calls him out on the hypocrisy of his statement.
Fall Guy: In two different ways. First, Suzuno suggests to the Church and Emi that they can work together to pin the blame for all sorts of nasty stuff on Olba, for which is he largely responsible. Afterward, they can genuinely clean up their act. Second, when Olba failed to return his own comrades went 'Oh, hey, this is convenient. Our inquisition got us into some hot water and oh so conveniently the guy in charge of it is MIA.' So it's thus implied that even if Olba went back to Ente Isla he'd still be in some serious trouble.
High Priest: Which is why Emi isn't willing to trust people from the Church after his betrayal.
Emi: The man who led your organization made an entire underground mall full of innocent people collapse just to kill me and the Demon King. How can I trust you unconditionally as you demand?
Hypocritical Humor: Tries to call out Emi for working with Maou...after he was just working with Lucifer who was trying to slaughter innocents for fun. Nobody buys it for a second. Not even Lucifer. In fact he almost instantaneously called out on it by said two.
Light Is Not Good: Olba is supposed to be one of the good guys, yet is teaming up with Lucifer who wants to kill Maou and Emi, one of his companions from Ente Isla. Later, two of Emi's companions arrive to tell her that the church back home is doing very similar things to Olba back on Ente Isla. These people wield explicitly sacred power.
Nice Job Fixing It, Villain: His plan to help Sariel power-up by drawing the moon closer threw the entire city into mass panic, allowing Maou to feed on these emotions to power up — exactly as planned by Lucifer, who then knocks Olba out once Maou is restored to full power, canceling the moon spell and reversing Sariel's own power boost.
Sinister Minister: He's one of Emi's former companions who wants to take the glory of killing Maou for himself and like her can use Sacred Power.
Emi's best friend from the call center agency. A former resident of Kobe, she hides her accent to avoid people asking her about the Kobe earthquake, which killed some friends of hers.
Berserk Button: Having lost friends and classmates in the Kobe earthquake, Rika relates how she would always get extremely angry whenever anyone asks her about it, so she's particularly happy when Emi (who presumably doesn't know about the earthquake) doesn't say a thing about it.
Kansai Regional Accent: She is from Kobe but she hides her accent to avoid people asking her about the Kobe earthquake. She does speak it when speaking with her folks.
Locked Out of the Loop: Emi is hellbent on not involving Rika, and Alciel even comes up with an extremely elaborate and brilliant lie to excuse everyone's behavior.
Luminescent Blush: When Alciel thanks her for putting a more positive spin on his new house husband tendencies, she blushes and looks down until Emi snaps her out of it.
Anti-Magic: He has the ability to cancel out Sacred Energy, an ability unique to him.
Casanova Wannabe: He flirts with every cute girl that catches his eye. While his success rate is abysmal, his tenacity is impressive.
Eye Beams: Purple ones that are normally pretty low key, but cancel out Sacred Energy. With enough power they become far more impressive, however.
Formerly Fit: Gets fat from eating MgRanold's for every meal in an ill attempt to impress Mayumi Kisaki.
For Science!: Planned on experimenting with Chi's body to see what effect Maou's magic has on it.
Hoist by His Own Petard: He's able to absorb great power from the moon being brought closer to Earth. However, this also helps Maou regain his demon form from the widespread panic caused by the large freakish moon covering the whole sky.
Large Ham: He acts in a very flamboyant, theatrical fashion.
Happily Adopted: She adopts Maou as her "father" and Emi as her "mother", she loves them very much and both of them grow to care for her as if they were her real parents.
Meaningful Name: Her name "Alas" means "wing" and "Ramus" means "branch" in the in-universe language of Centrumian of Ente Isla.note "alas" in zoology refers to wings and "ramus" means "branch" in latin used in botany
Our Phlebotinum Child: Technically her relation to Maou and Emi are more or less like this, she was created from a fragment of Sephirah Yesod (the same thing that made Emi's holy sword) which was given to Maou by Lailah, an angel who was Maou's mentor (and is also Emi's mother)
Skunk Stripe: While all her hair is white/silver she has a strand that is colored in a magenta/purplish shade.