Uptown Girl: Both Asmodeus and Beelzebub are Sins, yet are in romantic relationships with demons far below them in rank — far enough for it to be scandalous. Belphegor then confronted Karen on her previously telling him that Lugnut and Claptrap had been destroyed. Karen breaks under pressure and told him the truth about Lugnut and Claptrap's insubordination. As Karen braced to be reprimanded, Belphegor, in an arrogant manner, expressed his gratitude for Karen's initiative for attempting to destroy Lugnut and Claptrap and claimed that she truly was a model of his intelligence. Interpreting this as a complement, Karen blushed and thanked the King of Sloth for his words, thinking she finally gained his full favor. Self-Destruct Detonator: Belphegor, to ensure the compliance of all artificial intelligence under his command, had all of his inventions created with a built-in, extremely powerful bomb. He could set off these explosives using a display on his wrist (and could target one or multiple robots at once), ready to blow off them to pieces should they step out of line or fail to comply with his commands. Ms. Fanservice: She has a sexy fox-bee hybrid design and outfit and even Loona admits that she finds her hot.

Flashy Teleportation: Mammon tends to move about by teleporting in a flash of smoke, lightning, confetti and dollar signs while making a "cha-ching" sound. Abusive Parents: He sees himself as Fizzarolli's father figure and he financially and emotionally abuses him for his own ends. He even claims that he raised Fizz like "the son I didn't want."

First Circle (Limbo)

Despite not making a physical appearance, Belphegor is referenced in the episode "Ozzie's", where his signature can be seen on Loona adoption papers while Blitzø was looking through old photos on his Hellphone, revealing that Belphegor owned Loona before Blitzø adopted her.

The Hellhound Adoption Foundation was established at an unknown point in time during Belphegor's reign over the Sloth Ring. The organization was established to raise and indoctrinate young Hellhounds with the mindset of being an obedient slave or pet. The foundation began in the Sloth Ring, but gradually became a Hell-wide operation as Belphegor's laws against Hellhounds were soon adopted in Hell's other rings, leading to them widely being discriminated against. Villain in a White Suit: When Fizzarolli went to his concert for the first time, he is seen wearing a white suit that makes him look a lot like a snow-covered pine tree. Lugnut: Just because he's lazy doesn't mean his mind is!" — Amelia and Lugnut, while hiding from Belphegor's Scavenger Units who were sent to capture Charlie's Angels.Lucifer advises his daughter to take pride in her status, but in a way that implies that others shouldn't have pride they haven't earned. Whenever Belphegor is confused or surprised, he emits a sound similar to a dial-up modem connecting. Belphegor appeared as a white, heavy-set robot who possessed a flat face with a small, horizontal visor that displayed slit, horizontal red eyes. He possessed a wrist-mounted mini-computer that enabled him to do various things, from directing the behavior of his creations, detonating the explosives devices built into his robots, and allowing him to see through the lenses of other robots. The places for Wrath, Gluttony, and Envy all have names that include those of mythological demons: Satan, Beelzebub, and Leviathan respectively.

Technokinesis: Belphegor had full control over Belphe-Tech's internal systems, which allowed him to directly interfere, override, and control any and all Belphe-Tech product/smart home devices, such as lights, vehicles, video monitors, drones, television, home appliances, weapons and artificial intelligence, controlling them with his mind or mentally commanding them to carry out his exact biddings and also allowing him to see through their lenses and speak through them. Large Ham: They're all very flashy and theatrical individuals, with both Ozzie and Bee making their first appearance by way of their own song. (House of Asmodeus and Cotton Candy, respectively) They also tend to incorporate circus tent imagery into the design of their establishments. He is a closeted fanboy of Verosika Mayday and dances to her music in his private quarters when no one is around.Despite his cold demeanor, he was not without his own quirks and eccentric behavior. This included a fondness for potato chips and I-Scream, taking a nap following any inconvenience (no matter how miniscule), randomly falling asleep whenever someone was explaining something to him, and dancing bombastically to Verosika Mayday's songs in his private quarters. He was also an avid gamer, being a particular fan of the Super Satan Adventures trilogy as well as Lucifer Kart 666. Hoverchair: Belphegor preferred to get around anywhere using his own futuristic hoverchair. The chair resembles a futuristic toilet and has a control panel on the right armrest. The chair can also display holograms which Belphegor can use to access the internet, Belphe-Tech's network, his hologram drones, or use to watch different media. Voice of the Legion: The three Sins who have appeared thus far have this when in their One-Winged Angel forms. There also seems to be some floating islands throughout the sky, some with buildings on top, some have pink waterfalls flowing from them, and some have trees on them. Unexplained Accent: Much like Crimson, he's a Hellborn demon with an Earth accent, this time a broad Australian one, made only more egregious by the fact that he's been around since the beginning of Hell itself.

May–December Romance: With the sins confirmed to have been around since the beginning of Hell, Bee's relationship with Vortex, a normal Hellhound, is one of these. The Empath: According to Vivziepop her “taste” for other creatures emotions not only helps her determine the best way to throw her parties, but also makes her the most empathic of the king sins. Interspecies Romance: Bee is a half-fox/half-bee demon/embodiment of sin whereas her boyfriend Vortex is a regular hellhound. In "Shield of Hate", Lugnut reveals to Charlie's Angels that he was once a Slothborn demon who worked at Belphe-Tech until Belphegor converted him into a robot for not working as hard as the King of Sloth had wished. When he and Lugnut previously disappointed Belphegor, Karen punished them by activating the bombs in all of the friends they had made at Belphe-Tech and scrapping their remains. Karen then converted the scrapped remains of their friends into robotic plating that she had implanted on Lugnut and Claptrap as a permanent reminder of their failure. Saddened by his story, the angels comfort Lugnut by saying that he and Claptrap do not have to return to the Sloth Ring and can be a member of their "family". Touched by their kindness, Lugnut lamented that he wished he could remember how to cry, as the children, followed by Claptrap, lovingly embrace him.

Seventh Circle (Violence)

Additionally, each Ringleader is themed after a genre of music, Belphegor's being synthwave and chillhop. Angelic Power: Being a fallen angel, one of the rulers of sin, and one of the most authoritarian figures in Hell, Belphegor was once an angel of presumably immense power, surpassing both Goetia and Overlords. However, he seemed to have lose these powers after he discarded his original body and transformed himself into an AI, possibly explaining his motivation behind harnessing the power of Charlie's Angels for himself and his creations. Belphegor's design in Season 5 is an obvious homage to HAL-9000, the main antagonist of the 1968 film 2001: A Space Odyssey. Blitzø even references HAL when he asks Belphegor why the King of Sloth became the "sexy robot voice from the space movie". Baxter shares a genuine friendship with his intern, Crymini, as well as his robotic servants, regardless of being rather bossy towards them. Conversely, Belphegor was apathetic towards his robotic servants, frequently having them create his inventions and serve him in a demeaning manner, and was no better to his demonic servants, stripping them of their free will by converting them into robotic slaves.