Xaphan

Xaphan is a demon who arrived on Earth much later than the other demons. She was sent to Earth by Hell's automatic system to replace Hornblas after he disappeared. Until Episode 2, she had been alone in a room stoking the bellows of the flames of Hell since the fall from Heaven.

Physical Description
In humanskin, Xaphan has arms so jacked, they shock Misroch into not being annoyed for a minute in Episode 3. She also dresses in all black and is referred to as a goth.

Xaphan has even larger arms in her demonskin, and is referred to by Belzagor as a "fire demon".

History
Until meeting Mall Rat in Episode 2, Xaphan has been in a small room in hell, stoking the flames of Hell, since the fall from Heaven, thousands of years ago.

Belzagor
While Belzagor is initially hesitant to accept her arrival, calling her the "new girl" and insisting she would have to leave, Xaphan is friendly towards her. The two soon start spending time together, as Xaphan tells Misroch in Episode 4 that Belzagor has been teaching her about "The Cool". By the finale of season 1, they consider each other friends, and Xaphan is overjoyed when Belzagor rescues her from her station in Hell.

Asmoraius
Unlike the other members of Mall Rat, Asmoraius returns Xaphan's friendliness from the start. While the other two try their best to hand her off, he happily accepts the role of mentor. She seems to enjoy spending time with him, continuing to ask questions and even getting ready to follow him when he tries to part ways with her in Episode 3.

Misroch
Misroch is initially the most opposed to Xaphan's presence on Earth and tells her as much. She seems shocked at this revelation and continues to be friendly towards them, spending a lot of her time at Wiener World. The two seem to consider each other friends quickly, however, having a friendly competition when collecting Sin Coins in episode 7.

The Teens
Xaphan does not seem to interact much with Trainee until the teens summon her, as Trainee knows her only as "the creepy girl who’s been crawling around under the fryers at work". Xaphan does convince Damien and Raven to set fire to someone's hackey sack in The Arcade as Asmoraius teaches her how to earn Sin Coins in Episode 3. After this, the teens summon Xaphan during a sleepover using a book from Splinter's and she makes a deal with them to find Hornblas. Later, she finds them in the hell bathroom and brings them back to the group after discovering they've made a deal with Mammon.

Hornblas
They have never met, but she seems to like him, offering to make out with him in Episode 6.

Trivia

 * Has mastered the “novice” level on Dance Dance Retribution.
 * Implies that "Spike from Buffy" is a real demon and that she can contact him.
 * Her first friend on Earth was a rat that lived under the fryer at Wiener World. It did not live long.