Mammon

• Avatar of greed
The Great Mammon (by himself)
• Mammoney (Devilgram username)
• Money-obsessed
• Stupidmammon
• Greedy McGreedface
• Papa (by Little D. No. 2)
• XxGrimmlovrxX (DevilTube username)
• Terror of the Devildom
• Scumbag

Species: Demon (former Angel)
Gender: Male
Birthday: September 10
Zodiac: Virgo
Banner Animal: Crow
Devildom Birth Flower: Sacrifice Dahlia

Mammon has short, shaggy white hair, and sienna-colored skin. His eyes are a gradient of cobalt blue and yellow, and his nails are painted white. He typically wears gold stud earrings, as well as two rings on both the ring and pinky fingers of his right hand.

Demon form: Mammon has a pair of small, black horns that protrude upward from his head. The horns have a tight, spiraling pattern before ending pointing upward above his head. His hair is also shown to have yellow tips in his card art, for example The Guardian Demon or The Avatar of Greed, although this is not reflected in his sprite.
Mammon also has a pair of bat-like wings on his back below his shoulders. The "arms" and "fingers" of the wings are white with yellow tips, and the "fingers" of each wing end with sharp-looking spikes. The wing membranes are a dark, charcoal grey.
When in his demon form, Mammon has thin, white markings that stripe across his chest and his back.
Mammon's outfit when in demon form consists of a studded, black bolero jacket with white, elongated diamond patterns on each of the sleeves, a high standing collar, and belts that criss-cross in front of his chest before connecting to his pants. The pants are black with a pattern of large, white diamond shapes along the left leg. He also wears a pair of charcoal grey, knee-high boots, each decorated with two sets of three gold, spiked studs.

everyday clothes: The outfit consists of a charcoal grey shirt tucked in at the waist, and over the shirt, a coconut brown and off-white jacket with charcoal grey accents and cuffs. The jacket's popped collar is off-white with charcoal grey trim, and the shoulders have charcoal grey decorations bordered in pale gold, and with three white embellishments each.
He also wears blue denim jeans paired with a pale gold belt, and dangling from the left side is an accessory with black and golden yellow feathers. His boots are black with white soles, and seemed to be lined on the interior with black feathers. Despite it always being dark in the Devildom, Mammon also wears a pair of black-framed sunglasses with yellow lenses.

Mammon's title "Avatar of Greed" is well-earned, and of the seven brothers, he is arguably one of the most constantly influenced by his sin. He is always looking to make more money or to spend more money, and this single-minded focus doesn't leave him much room to worry about the consequences. A D.D.D. app called "Demon Brain Scan" was used in Beelzebub's Devilgram Unspoken Affection to show that 90% of Mammon's brain is taken up by "money."
One of the ways Mammon earns himself Grimm is by working as a freelance model. He has modeled at least once for the fashion magazine Devil Style that's published by Majolish, and one of his photoshoots was titled "Falling for You." He has also modeled for Evil Devitton, as seen in the Devilgram Fashion Hot Shot. More often, however, Mammon gets his Grimm through less "legitimate" means, including borrowing money with no intention of paying it back, or by stealing and selling things, including the possessions of his brothers.
Leviathan especially is a sibling he borrows from often, as seen in the very first lesson of Obey Me!'s Main Story, which led to Mammon being bribed by both Leviathan and MC into becoming MC's first pact. Making a pact with MC was a decision he made impulsively, which is something he very often does. His brothers are often unwillingly dragged into his schemes and left to pay the price alongside him, as in the Pop Quizzes Summer Festival and Welcome to the Bunny Show.
Mammon's greed also can make him desire things not for their own sake, but because he knows other people desire them. In addition to borrowing from Leviathan and not giving the money back, Leviathan explained to MC that some time ago, Mammon won a Seraphina figure that he refused to let Leviathan have, not because Mammon himself wanted it, but because he knew his brother did.
Mammon being thought of as an impulsive, greedy troublemaker is largely the reason why his brothers often don't treat him kindly.

In Belphegor's Devilgram, Hatred, Beelzebub commented that all of Mammon's brothers look down on him. His brothers also frequently insult him, calling him "scumbag" or "idiot" most often. Mammon is always very vocal in denying those insults. He desperately cares what other people think about him, even people he doesn't know. When Lucifer gave him the task of watching over MC during their stay in the Devildom, he did his best to ensure MC understood that he didn't agree to the task because he was scared of Lucifer. He also insisted in the chat Horror Movie Night that he wasn't afraid while watching a horror movie, despite it being obvious he was. He also becomes ecstatically happy whenever he's given praises, as seen virtually any time that MC chooses to compliment him.

Mammon often refers to himself as "Ore-sama" and "Mammon-sama." "-sama" is a Japanese honorific meant for those of higher rank, and "ore" is an informal pronoun for "me" or "I." Thus, "ore-sama" roughly translates to "The Great Me."
Despite his insecurities and the way his brothers often treat him, Mammon cares deeply for all of his siblings. He often plays the role of mediator between Lucifer and his younger siblings when they argue or are in trouble, as he did for Belphegor in the Devilgram Paying Back What's Owed. When not personally involved in the family feuds, he often does his best to talk both parties down, or come up with a plan to get his brothers back on better terms. It was Mammon's idea to use Leviathan's Dogi✩Maji✩Memorium game to give Lucifer and Satan a common goal to work toward, and thus help them get along better.
However, as level-headed as Mammon is capable of being, there have been times when he lost his temper and transformed into his demon form.

One example occurred in the Devilgram Let Your Hair Down, when he, Lucifer, and Leviathan walk in on the younger brothers (sans Belphegor) bad-mouthing the eldest three. Another example is in the Devilgram Levi Dreams of Sleep, when Mammon learns that Leviathan spent the night with MC. Explaining that Mammon was fired from his job after getting into a brawl with a customer, which resulted in a café being destroyed.

Mammon is often getting in trouble with Lucifer over his poor grades at RAD.His worst subject at RAD is hexes and curses, as he admitted.

•As stated in Issue 5 of the RAD Newspaper, Mammon likes R&B music
he suggested that the brothers form a metal band, implying he also enjoys this type of music.
•Mammon's a big fan of the Harrison Porter movie series.
When visiting the Human World, Mammon was excited to see official merchandise for the movies being sold at Victoria Station.
Mammon rented out a whole theater for himself and MC to watch the newest released movie in the series.
•Mammon likes sci-fi movies.
He likes the series The Masked Bandit
He appreciates the series because he enjoys watching the protagonist steal from corrupt rich people.
•One of Mammon's favorite foods is instant noodles.
His preferred flavor is Hell-Sauce flavored, but he is also willing to try adventurous flavors such as "vanilla pork fat seafood ramen with extra devil's chili peppers."
Mammon also has his own ways of preparing instant noodles. One of "Mammon's Special Recipes" is adding Little Devil's gelatine parfait and some poison belly newt.
•Some other foods that Mammon likes are dried blackbelly newt legs, and fried scorpion sandwiches with vinegar and tartar sauce.
•As the Avatar of Greed, Mammon enjoys both selling and possessing expensive and luxury items.
One of these luxury items is his prized car, a Demonio 666 Lexura.

•Mammon doesn't like green peppers.
•Mammon refers to Leviathan's suggestion to mix orange acid with ice tea as "muddy water."
•Asmodeus stated that Mammon is not a morning demon.
•Mammon hates anything scary-related, such as horror movies and haunted houses, and tends to scare easily.
•He has a strong dislike of witches, mainly because they exploit him for their gain.
•Mammon dislikes tasks where tiny details are important, and said that they're "just not [his] thing."
This dislike of tiny details is likely why Mammon's handwriting is known to be terrible

Mammon is known to be brilliant at math. According to Diavolo in the daily chat Mammon's Talent, he's able to calculate sums "faster than a computer."
However, this ability only relates to math involving money.

While not considered as good as Asmodeus, Belphegor commented that Mammon has a talent for singing.
In the same Lesson, it was mentioned Mammon once sang lead vocals in a band at the RAD school festival.

Though he dislikes the task and doesn't have much experience, Mammon has a talent for embroidery.
Luke commented that Mammon's embroidery was amazing, and that the intricate work he'd done was difficult even for Luke.

Mammon knows how to drive

Mammon is the active one when it comes to love.
He chose "other" on whether to bind his lover. (He wrote, "What do you want me to do? What did you say? Idiot!")
He easily forgets relationship anniversaries and special dates of remembrance.
He won't have days when he can't sleep thinking about the person he likes.
He is unable to express himself frankly.

Lucifer, Leviathan, Satan, Asmodeus, Beelzebub, and Belphegor