One of the main protagonists is a gay pornstar.

There is a building in the background called "Porn Studios".

There are multiple blatant sex jokes and innuendos.

Sex and prostitution are heavily implied but not directly shown onscreen.

There is violence throughout. Mostly in the form of bombs, explosions, guns etc.

Despite the fact that the characters are technically already dead, it's implied that they can still "die" as Hell goes through an annual genocide to reduce population, the aftermath of which is briefly shown.

A demon gets crushed by a giant rock, a small pool of blood is briefly seen.

One part of the episode involves a turf war in which Angel Dust and Cherri Bomb fight Sir Pentious and his army of sentient eggs. Multiple eggs are obliterated into puddles of yellow "blood" by use of bombs, guns, and a baseball bat.

The show opens up with the aftermath of a yearly extermination. It shows many dismembered corpses of demons, but most are silhouetted or in the background. One corpse's head is torn off by another demon and put into a cart full or other body parts (not bloody) and another corpse is shown having a spear removed from it's head as a group of demons descend onto it. It's not show what happens next, but it's heavily implied that the demons are eating the corpse.

Word like "F*ck" and "Sh*t" are used

Characters called each other "slut", "whore", "pervert" etc.

A homophobic antagonistic character says to a bisexual character "You can put that away. I don't touch the gays, I have standards." when the bisexual character offers to shake hands. Not necessarily language but some may be offended by this remark.

Husk gives Alastor the finger during a music number. Very brief and very easy to overlook.

In an argument Angel Dust says to Vaggie "Don't get your taco in a twist." When asked if he meant to be sexist or racist (Vaggie is Latina) by the remark Angel says: "Whatever pisses you off more."

~44 profane words are used throughout the pilot

Several drug addicts are seen in the show weather it's a main character or a background character.

Characters drink alcoholic beverages but remain sober throughout.

Some minor characters and background characters are seen with cigarettes.

Angel Dust, who is one of the main characters, gets these drugs with his name on them from a vending machine.

There is constantly billboards in the background with things like meth, cocaine or, hard drugs written on them, some are for a more comedic affect.

Some character designs and motives are moderately frightening since all of the characters are demons.

The Radio Demon 'Alastor' says that if he wanted to hurt anyone he would already have done so already. He goes full on nightmare fuel whilst saying this.

The show opens up with the aftermath of a yearly extermination. It shows many dismembered corpses of demons, but most are silhouetted or in the background. One corpse's head is torn off by another demon and put into a cart full or other body parts (not bloody) and another corpse is shown having a spear removed from it's head as a group of demons descend onto it. It's not show what happens next, but it's heavily implied that the demons are eating the corpse.

Given that the show literally takes place in hell you should expect to see a plethora of demonic characters and satanic imagery in the background.

When Alastor's backstory is discussed it shows some creepy imagery with some spooky music. This shouldn't be too frightening to most people though.

(Deleted. Personal opinions about suitable viewing ages are not appropriate for the Parents Guide.)

Alastor the "Radio Demon" may frighten younger audiences and some adult audiences.