Despite his status as the ruler of all of Hell, Lucifer possesses a grandiose and dramatic nature, acting very over-the-top in most situations. He switches between being silly and theatrical and awkward and melancholic. Like Charlie, Lucifer is ambitious in his beliefs. According to the "The Story of Hell" book Charlie reads in "Overture", Lucifer was an idealistic dreamer whose accidental creation of Hell and the subsequent banishment of it caused him to give up his dreams. After he and Lilith separated, Lucifer went into isolation and fell into depression. He coped by crafting and hoarding tons of rubber ducks, spending years in his home. This obsession also causes him to become estranged from his daughter, to the point where he barely calls her at all and thinks she does not want to talk to him.

Lucifer is oftentimes careless and doesn't think about what he says, even appearing clueless at times. However, he is not afraid to fight or get violent. As a father, he falls short of expectations. Although he loves Charlie dearly, he seems to be preoccupied with his own problems. He seldom calls her, and when he does, it's usually because he's bored or needs something. Despite his love for Charlie, he doesn't communicate with her and hasn't built up a relationship with her, though it was shown that Lucifer was much closer to Charlie in her childhood, only becoming more distant in Charlie’s adulthood.

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) carries little weight. Lucifer dislikes the Sinners of Hell and describes them as "violent, destructive psychopaths, hellbent on causing as much pain and destruction as possible". According to him, they are all "the worst" he does not believe they can be redeemed and he cares little for what happens to them. Although he understands his daughter's interest in rehabilitating Sinners, Lucifer is cynical about the idea of trying to save any of them, as he attempted to redeem sinners in the past, stating that Charlie doesn't know when he tried this all before, and that his dreams were too hard to defend. Lucifer is fiercely protective of Charlie. Later, when Alastor began rubbing in his failings to be a proper, supportive father to Charlie and her dreams and implying 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 become insecure about his father-daughter bond with her.

If you could sound similar to his VA, Jeremy Jordan, that would be great, but it is not required!