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 according to the "Story of Hell" book Charlie reads in "Overture", 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. Despite his clumsiness and eccentric behavior, Lucifer is rather prideful about his status, befitting his Sin of Pride. 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. 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. 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. 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, and 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.