A Day in the After Life (aka The Radio Demon, its listing on the official website) is a short tie-in webcomic for Hazbin Hotel released after the official pilot.

The story follows Alastor, the infamous Radio Demon, as he goes about his day, meeting people who are desperately terrified of him.

Alongside its predecessor Dirty Healings, it used to be available on the show's official website, but was taken down for unknown reasons. It can now be read here on Tumblr and here on Imgur. All sixteen pages were released on October 19, 2020.

Tropes:

• Affably Evil: Alastor remains polite and pleasant, even in the face of people running and screaming when they see him. He also holds the door open for a sheep demon when leaving the butcher shop. He also hates rapists, stating that he hates people who can't "show a little respect to those of fairer means".
• Animal Motifs:
  • The butcher demon is a pig man, fitting with a mix of his profession and his utterly depraved personality.
  • His intended victim, meanwhile, is a sheep demon, a form that denotes innocence and kindness, making her more sympathetic to the audience.
• Asshole Victim: The Butcher's fate of being eaten by Alastor was absolutely deserved given how the former was about to assault a sheep demon.
• Big Brother Is Watching: Implied with Vox — When Alastor makes a snide comment in front of a television display in a shop, Vox's face ends up taking up the whole display and glaring evilly at Alastor, with the subtle implication that he can see him.
• The Cameo: A statue of Lucifer appears at the beginning of the comic.
• Cluster F-Bomb: Alastor of the entire main cast, the one major character not seen using any profanity in the pilot, has a small showdown with Vox, and then when out of earshot, unleashes the floodgates on his profanity filter while walking through town. Yes, that is exactly how much he hates Vox — he'll keep the smile on his face during the encounter so as not to appear weak and likewise while walking off, but the sheer sight of the Overlord is enough to make the Radio Demon falter.
• Cute Monster Girl: The sheep demon who enters the butcher shop is adorable, as are Alastor's cannibal fangirls.
• A Day in the Limelight: In Hazbin Hotel itself, Alastor is a supporting character. This comic has him as the main focus, being about a day in Alastor's afterlife.
• The Dreaded: Alastor sends most of the demons in Hell running just by offering a friendly greeting.
• Early-Installment Weirdness:
  • Both Alastor and Vox have their pilot designs, meaning Alastor's coat collar is missing its white fringe and Vox has a busier design with more detail not present in the actual show.
  • Cannibal Town is referred to as the "Cannibal Colony", and the Cannibals who live there are not presented as a Gang of Hats who all have Black Eyes of Evil and Scary Teeth.
  • Vox's media and tech company is not called "VoxTek", but "Vogitek".
  • Alastor is portrayed as being immensely irritated by Vox to the point of letting off a very uncharacteristic Cluster F-Bomb under his breath when he sees Vox on TV, when in the show Alastor is as cool as a cucumber around Vox due to being implicitly stronger than him and effortlessly and calmly dresses him down during "Stayed Gone", while Vox is the one portrayed as having a Hair-Trigger Temper toward all things Alastor-related.
  • Alastor goes to a butcher's in order to buy some venison, when in the show he freshly slaughters it himself using his Reality Warper abilities to create some kind of Pocket Dimension bayou where he can hunt deer for free.
  • While the exact period when the comic occurs isn't mentioned, in the show Alastor canonically disappeared for seven years before returning to Pentagram City in the pilot, and no one seems to be surprised at his re-appearance like several characters (Zestial, Carmilla Carmine, especially Vox) are in the show.
  • Alastor appears to have a hatred for rapists as the murders the Butcher demon for attempting to assault a sheep demon. But in the series itself, not only does he show no care for Angel Dust, who is a rape victim, but he is confirmed to get along with Valentino, Angel's rapist.
• Even Evil Has Standards: At the end of the comic, Alastor is about to leave the meat shop, only to turn back when he hears the butcher attacking and implicitly trying to rape the female customer who just entered. He proceeds to go full-demon and slaughter the butcher for it, declaring people who "can't show a little respect to those of fairer means" distasteful.
  Alastor:    LIKE BAD MEAT...   
• Hate Sink: The pig man demon running the butcher shop is made extra loathsome so that the audience has all the more reason to root for Alastor.
• How They Treat the Help: Played with. Alastor torments an actual waiter for fun early in the comic, but later throws a coin to a saxophonist on the street with no apparent ulterior motive.
• I'm a Humanitarian:
  • The Cannibal Colony, who are exactly what they sound like. Unlike most of Hell, they absolutely LOVE Alastor.
  • Alastor himself kills and eats the butcher who was trying to assault his customer.
  • On a more symbolic level, Alastor, a deer demon, likes to eat venison, the meat of a deer.
• Jerkass: The butcher demon. Even before he tries to assault the sheep girl, he is shown manhandling another customer before Alastor arrives and tries to kill Alastor himself when he starts to annoy him.
• Monster Fangirl: A group of women from the Cannibal Colony are among the few people who don't run for the hills when they see Alastor, instead fawning over him when he walks by.
• Monumentally Important Founder: Lucifer has a statue of himself in Pentagram City.
• One-Winged Angel: Alastor goes full demon to stop a butcher from assaulting his customer.
• OOC Is Serious Business: Alastor is usually cool-headed and refrains from swearing. After his run-in with Vox, he angrily grumbles "Obnoxious, pompous piece of shit television!" under his breath.
• Pet the Dog:
  • Subverted with Alastor's fangirls in the Cannibal Colony. He greets them politely and asks them to say hello to Rosie for him... then throws one of them his hat to get her friends angry.
  • Played straight with the saxophonist, who Alastor gives money with no ulterior motive behind it.
  • Played with regarding the sheep demon he saves. He rescues her from being raped due to being disgusted by such an act, but the way he does it is so horrifying that the poor demon is left huddled in terror at the sight.
• Perpetual Smiler: Even when he gets angry, Alastor never stops smiling.
• Politically Correct Villain: Alastor may be pure evil, but as his interactions with his fangirls and the sheep demon show, he at least tries to respect women.
• Rape Is a Special Kind of Evil: Alastor is not pleased when he hears a butcher trying to rape a female customer.
• Sinister Swine: The butcher was a pig demon attempting to rape a female customer before Alastor promptly stepped in.
• Terrifying Rescuer: While Alastor succeeds at saving a sheep demon from being assaulted, said demon is very justifiably terrified of him afterward, due to the way he goes about it (namely, transforming into an Eldritch Abomination and eviscerating the assaulter). The last we see of the sheep demon, she's huddled in the corner, whimpering and trembling in fear with tears in her eyes.
• Toothy Bird: The ravens Alastor feeds deviled eggs to inexplicably have sharp teeth, likely because they are members of Hell's native fauna.
• Touch of Death: When Alastor tries to pick a flower, it withers in his hand.
• Trademark Favorite Food: Alastor's love for meat is shown off here, as he mentions that he likes to visit every new meat shop that appears in Hell to see which one could become his favorite. He also notes that he's specifically fond of venison, as it "reminds him of simpler times".
• Troll: Alastor. One of his first scenes is ordering deviled eggs at a restaurant, then throwing them to some nearby birds and prompting them to attack the waiter. Later, he does smaller examples, such as throwing his hat to one of his cannibal admirers to rile up her friends.
• Uncertain Doom: When Alastor meets his fangirls in the Cannibal Colony, he throws one of them his hat, angering her friends in the process. Whether or not they proceeded to attack or eat her over it is left unclear, as Alastor leaves before we can see what happens next.
• Villain Protagonist: Alastor, a cannibalistic demon overlord, is the comic's main focus.