Satan | Human in Hell series

Satan is a major character in Helluva Boss who made his official debut in the episode "Mastermind". He is one of the Seven Deadly Sins, embodying the sin of Wrath.

Due to Lucifer Morningstar's absence, Satan became the acting leader of the Sins and ruler of affairs in Hell, though he claims to be the true ruler.

Not much is known about Satan's history other than at some point he joined Lucifer as part of the Deadly Sins, embodying the sin of Wrath. Satan was also the creator of the imp race.

At some point, Satan assumed leadership of the Seven Deadly Sins and became the de facto ruler of Hell during Lucifer's absence.

Satan is a titanic and muscular draconic demon. He has two pairs of warm orange-yellow eyes, and two pairs of striped-horns that are different in appearance - the outer horns are longer and are two shades of mauve, while the inner horns are shorter and are black-and-white, similar to that of a male imp, and they are positioned in a way that resembles a pitchfork.

His skin appears to be different shades of red with claw-like fingers, darker-red markings, and warm orange-yellow lava-like stripes covering his wings, neck, and left arm, while on his right the stripes are dark red. He also sports black spikes coming out his back, all the way down to his large, demonic tail, which has a spearhead-shaped point at the end.

Satan is dressed in a way that is reminiscent of traditional American western-style clothing, as a nod of his association with imps of the Wrath Ring. His outfit consists of a mauve tank top under a black torn vest with tassels, red lapels, and golden fasteners shaped like barbell weights, black leather trousers with a belt that has a golden skull buckle, and black cowboy ankle boots.

Matching the sin he represents, Satan is shown to be a very wrathful demon with anger issues and he chronically has outbursts which leave him out of control. His uncontrollable rage is too much to the point that he needs a therapist to act like a "shoulder angel" to remind him to keep calm. Despite this, he can also be reasoned with and well-sophisticated most of the time, unless he is provoked.

He is shown as having little to no care towards the demons that are below the nobility in the hierarchy of Hell, especially imps, whom he claims to have created for the purpose of obeying orders and doing their jobs. Despite holding royal demons in a much greater regard, he didn't hesitate to strip Stolas of his power and title and give it to Andrealphus as punishment for breaking demon law. He also quickly dismissed Asmodeus and Beelzebub's request to give Blitzo a fair trial, using the opinion of the rest of the court to justify it.

Satan is also shown as being immensely vain and arrogant, reveling on his position as leader of the Deadly Sins in Lucifer's absence. Despite the fact that Lucifer is the first ruler of Hell, Satan lies and proclaims himself as being the original ruler of Hell, though it is shown that Beelzebub and Asmodeus are aware of his lie.

Despite this, however, Satan is implied to have a slightly friendlier demeanor when off-the-clock, which is suggested with Beezlebub's comments and how she saw him as a brother figure. Furthermore, he is willing to let others go if they plead not guilty, such as when Blitzo convinced him not to execute the rest of I.M.P and just him, and again when he released Blitzo after Stolas admitted to being responsible for his crimes.

He doesn’t seem too fond of spending a long period of time in court, particularly when it is nearly lunch time. Because of this, Satan would prefer having the defendant executed rather than listen to their testimony if it means speeding it up.

As he is called "your majesty" in "Mastermind", it can be assumed that Satan is demonic royalty and biologically immortal, being able to live for a long period of time and only able to be killed by angelic weaponry.

While Satan's "normal" size alone towers over most demons, even his fellow Sins, he shows that he can easily alter his size at will, making himself even larger to an unspecified degree.

Satan is able to fly thanks to his giant draconic wings.

Satan can warp the colors, ambience, and illumination of every room and palace where he is, as shown when Satan interrupts Stolas' musical number and the courtroom turns into an orange-yellow color.

As shown in his song, Satan is able to create images out of flame, like the image of a six-winged angel. The smoke that emits from his nostrils when he is angry may suggest he can also breathe fire.

Satan, with the use of an enchanted set of rings bearing the sigils of the Seven Deadly Sins, can strip high-ranking demons like Goetic aristocrats of their powers and status. He performed this on Stolas and set it for a hundred years for providing the grimoire to Blitzo and allegedly commanding him to use it illegally.

As he mentioned in "Mastermind", Satan created the imp species of demons, which he made to be obedient.

Befitting his size, Satan seemingly possesses incredible physical strength, such as being able to crack the floor when he steps off his throne. He also displayed his strength when he shakes the ground by slamming onto it during the trial.

As the stand-in leader of the Seven Deadly Sins and the rest of Hell due to Lucifer's absence, Satan has a strong sense of strictness and command within its government, with the other Sins deferring to him as their adjudicator without questioning his ability. He is also incredibly intimidating compared to the other Sins, to the point even high-ranking Hellborn species are terrified of displeasing him by stepping out of line.

Satan is shown to be a decent singer, as seen in his song.