Belzegor

Belzagor is the bass guitarist of Mall Rat, and works at the GadgetHut in Brimstone Valley Mall, Pennsylvania. She is a demon of invention and is constantly inventing new things. She's been surface-side for about thirty years, and was originally stationed in Las Vegas. In the 1970s, she met Hornblas, and later met Asmoraius and Misroch. Later, they moved to Pennsylvania together.

In hell, she was previously stationed as an inventor in the blood sewers, and she invented a new and improved self-cleaning blood gutter system.

Appearance
Belzagor's appearance has been more widely described in the show than others'. In her human form, Belzagor has a face "full of metal" and is described by Misroch in first episode as "freakishly tall." In the second episode, she mentions that she got her nipples pierced. She also has a tattoo of Hornblas' sigil somewhere under her clothes.

It's revealed in Episode 5, that in her demon form, she is made of metal and mentions feeling rusted. Xaphan describes her as "Shiny! Sharp! Extremely intimidating!"

Personality
Among the demons, Belzagor is the most sympathetic and understanding. Added to this, she's very blunt, sarcastic, and smart. She won't stop from making a snide remark or sarcastic comment on the behalf of anyone. She's not the most patient or long-suffering person, as was the case when she'd give the job of babysitting Xaphan to Asmoraius.

When it comes to her friends, Belzagor is very caring. After fights with Misroch, she makes the move to smooth things out and reassures them that she cares about them. She was the first one to realize that something wasn't right with Hornblas' disappearance, and constantly justifies his moods to Misroch.

Belzagor also doesn't believe that humans are as bad as Misroch makes them out to be, and is interested in the human psyche. Upon seeing a Tamagotchi, she theorizes that it's a way for humans to have will over another life to get over the instability of their own life. Once, she dissuaded a human from buying a telephone because she genuinely believed it was a bad idea, but she was quick to kick the customer out from the store once she saw that Misroch was coming in.

She is a brilliant inventor as she created working blueprints for a prototype Fur Baby (Furby) virtually overnight, but is sometimes caught with doubt as she'd get drunk and scrap these inventions due to pessimistic predictions of their success. It's implied that she wants to be challenged in terms of invention, and this is the leading reason as to why she never wants to return to Hell.

History
Belzagor spent most of her time as an inventor in the blood sewers of hell, and at some point in the past created the self-cleaning blood gutter system, installed in every blood gutter grate in Pandemonium.

When she arrived on Earth in the 70s, she was stationed in Las Vegas. She met Hornblas at a dingy bar, eventually being introduced to Asmoraius and Misroch. The four of them decided to move to South Central Pennsylvania together somewhere in the 80s or 90s.

Hornblas
They are best friends, and have tattoos of each other's sigils on their humanskins. They are also both in the band Mall Rat, and live together along with Misroch and Asmoraius.

Misroch and Asmoraius
Fellow Demons, roommates, and members of Mall Rat. They work in the mall together and tend to hang out at Wiener World or in the staff parking lot.

Xaphan
Despite Belzagor's initial annoyance at Xaphan for arriving as Hornblas' replacement, she grows affectionate towards her, expressing sadness at the idea of them being separated when they go back to hell. Belzagor invented a device that would automatically blow the bellows of the flames of hell, allowing Xaphan freedom from her station.

The Teens
Belzagor seems friendly with the teens, but also doesn't mind if they explode when attempting to summon Hornblas. She also intimidates them into bringing her a TV and a slushie when locked in Wiener World's back room.

Trivia

 * Her name is a reference to a prince of Hell, Belphegor.
 * Belphegor is a prince of Hell who plants ideas in people's heads that lead them to discoveries or inventions that would make them rich.
 * According to Carpasinus, her sin quota before the creation of the Furby was 72/4420.
 * She's usually found with a slushie in hand and has been referred to as a "liquitarian" by Asmoraius.
 * It's a running gag in the show that she often invents things that are common in the 21st Century then destroys them after thinking they're useless. One exception to this was the Fur Baby (Furby), which was stolen from her. In the past, she's created:
 * Mineshaft (a parody of Minecraft)
 * Smartphones
 * A MeTube channel (YouTube)
 * She hides her holy water (the demonic equivalent of booze) in the dumpster in the employee parking lot.
 * She has hers double-blessed!