Lucifer

Despite his status as the ruler of all of Hell, Lucifer possesses an eccentric, whimsical, and dramatic nature, acting very over-the-top in most situations. He switches between being silly and theatrical, to awkward and sad. Like Charlie, he is ambitious in his beliefs, and he was an idealistic dreamer whose desire to gift humankind with free will led to the accidental creation of Hell and his subsequent banishment there, which caused him to give up on his goals, falling into isolation and deep melancholy, coping by crafting and hoarding tons of rubber ducks.

Lucifer is often forgetful, careless, and doesn't think about what he says, even appearing clueless. For example, when confronting Adam, he misworded a verbal threat as a sexual innuendo and smiled proudly, and when Charlie corrected him, he forgot what he said. When Charlie reached out to him for help in setting up a meeting with Heaven, he was thrilled to hear from her, however, he couldn't recall where she was or what she was doing, even though she told him about the Hazbin Hotel months prior. In his first meeting with Vaggi, he called her "Maggie" right after being told her name, and multiple times in Season 2, refers to her as "Charlie's girlfriend". He also had no clue of Angel Dust's name in "It's A Deal" either. Additionally, even with his monumental position, he is rather socially awkward, for example, trying to connect with Charlie by excitedly bringing up that they both like girls.

Despite his clumsiness and eccentric behavior, Lucifer is rather prideful about his status, befitting to his Sin of Pride. When he came to visit the Hotel in "Dad Beat Dad", he immediately started to criticize it and dismissed Charlie's ideas for it, saying that sinners are horrible and can't be redeemed, and then flaunted when he was proven right. While confronting Vox in VOX POPULI, he claims how he is "a living aspect of the infinite" and nearly a god, taking pride in how mortals in the living world are scared of saying his name and attempts to intimidate the Media Overlord by reminding him, as well as the rest of the demons, that he is the King of Hell, saying also that Vox is acting bigger for what he really is, even calling him a "dead man" in a pointless attempt to break his spirit.

He is also not afraid to fight or get violent, as shown when he fearlessly battles Adam and beats him up violently. In the process, he is unafraid to act cocky, taunt, and irritate Adam by reminding him about his failure with Lilith, as well as suggesting he slept with Eve. Lucifer demonstrated more intimidation prowess when he ordered Lute to "take her 'little friends' and go home". Even so, he politely added "please", showing his generally refined manner.

While he is the King of Hell, Lucifer hardly rules over his subjects and leaves them to their own devices. As a result, his name (and, by extension, Charlie's) carries little weight. While the denizens of Hell recognize that he is a powerful force to be reckoned with, they seem to know that little, if anything, would make him show up. Lucifer dislikes the sinners of Hell and describes them as "violent, destructive psychopaths, hellbent on causing as much pain and destruction as possible". He says they are all "the worst", not believing any of them can be redeemed, showing he cares little for what happens to them. Alongside his disapproval of sinners, he hints that he regrets his role in ever giving them free will due to what they had done with it and the consequences that came from this.

As revealed in "Mastermind", Lucifer is similarly absent from handling matters related to Hellborn demons, as shown with how his throne is covered in cobwebs and empty, save for a rubber duck wearing his hat. With his absence, Satan in particular took the lead as Hell's main ruler and boldly lies that he was the true King of Hell and ruled it long before Lucifer had "fallen" into it.

As a father, he falls short of expectations. Although he loves Charlie dearly, he seems to be preoccupied with his own problems. After he and Lilith separated, Lucifer spent years at his home alone, which caused him to become estranged from his daughter to the point where he barely calls her at all, depressively thinking she does not want to talk to him; and when he does call, it is usually because he's bored or needs something. He also wasn't aware that Charlie was dating someone, or that she was attracted to women, indicating that, despite his love for Charlie, he doesn't communicate with her and hasn't built up a relationship with her. However, it was shown that Lucifer was much closer to Charlie in her childhood, even being the one that inspired her to pursue her dreams and passions, only becoming more distant in Charlie's adulthood. After he was sent away in "Silenced" and was called by Vox who was pretending to be Charlie in "Scream Rain," it is shown that he seeks validation from his daughter and hopes that she isn't mad at him or hasn't given up on him, and this extends to where he ignores or overlooks various red flags or hints that could indicate situations that either gets him into trouble or even in danger, as seen in "Weapon of Mass Distraction" when he was successfully captured by Vox after ignoring the hints, such as the dark location, no response from Charlie, and the X under a spotlight, that it was a trap for him, even assuming it was a prank after he gets trapped until Vox appears and reveals it wasn't. It should be noted, however, that Lucifer had never faced any real danger from Sinner Demons before, and did not think that a viable trap for him was even possible.

Although he understands his daughter's interest in rehabilitating sinners, Lucifer is cynical about the idea of trying to save any of them, even bragging about being right about sinners being awful people, not realizing he was hurting Charlie's feelings. However, he stated that Charlie doesn't know that when he tried to make his own dreams a reality before, they were too hard to defend,[16] and since Heaven was so unwilling to listen to him in the past, he does not want Charlie to go through the same thing. Despite his beliefs, Charlie still manages to convince him to arrange a meeting in Heaven for her and Vaggi, and Lucifer gains faith in her plans.

Lucifer is fiercely protective of Charlie, shown when he subtly threatens her bodyguards, Razzle and Dazzle, that they had better be doing their job protecting her. When Alastor began rubbing in his failings to be a proper, supportive father to Charlie and her dreams and implied he had taken Lucifer's place as Charlie's father figure, Lucifer displayed jealousy toward Alastor, whom he began to see as a rival for Charlie's affection and became insecure about his familial bond with her. In "The Show Must Go On", his protective nature is shown again when Adam tries to strike both Lucifer and Charlie from behind, and after the attack is blocked by Charlie and Lucifer hit him into the ground, Lucifer dropped the playful taunts toward Adam and proceeded to angrily berate Adam for threatening him and Charlie before pummeling him, only stopping at Charlie's request. When Vaggi tells him that Vox has been slandering her, he becomes furious and he agrees to try and threaten Vox to stand up for his daughter, only for it to backfire.

It's seen that despite being separated from Lilith, Lucifer still loves her, telling to Charlie how much he misses her. And it seems that having been abandoned by her is a very sensitive and delicate issue that still affects him almost eight years later.

Appearance: Lucifer is a slender-figured humanoid fallen angel who sports a close resemblance to his daughter, Charlie - having the same light ivory skin with rosy-cheeks, blonde hair with thin light coral streaks on the thicker, paler-blonde highlights, and eyes with light yellow sclera and red irises.

Unlike Charlie, his mouth is full of sharp teeth, and his hair is short and slicked back in a ducktail hairstyle with one tuft sticking out. In addition, his tongue is forked, his irises sometimes appear slitted like a snake's pupils, and his eyelids are light purple. He is shorter than his daughter, though not by a large amount.

Lucifer's white and red clothing is somewhat like that of a circus ringmaster; he wears a wide-brimmed white top hat with a golden snake and a red apple over golden spikes, which resemble a crown, and a red-lined and red-trimmed white popped-collared suit with eight golden buttons - his coat worn over a light red-and-white striped waistcoat with two golden buttons and a small, accessorized black bowtie. In "The Show Must Go On" his suit has red and golden epaulets, resembling those of a ringmaster.

He also wears a set of heeled black knee-high boots. On his left pinkie, Lucifer wears a golden ring which is presumably his wedding ring. He is also usually seen carrying an apple-topped black cane that matches his hat.

Lucifer has dark grey burn marks on his arms covering past the elbows and on his legs to above the ankles. He also has dark grey hooves instead of feet. Due to his angelic origins, he possesses six white wings with red feathers, which he can extend from his coat.

In the morning, he wears a fluffy pink robe, duck night cap with pink curlers, with his snake acting like his belt to the robe, and a pair of fluffy duck slippers.