- Charlie will coo and get excited to meet a kid from above ground and want to spoil him rotten. Lincoln might internally compare her to Leni.
- Charlie would probably want to help Lincoln end his curse so he can see his family up on Earth again.
- Vaggie will be like Loona: she'll be nice and protective to Lincoln without being overly coddling, excited to meet another being who isn't completely crass.
- Angel Dust will be crass and rude to Lincoln, but eventually come around to him.
- It's debatable. Vivziepop herself confirmed that Angel Dust has soft spot for children, even if he is not the best role model. And the author is more or less following canon. He probably will be nice to Lincoln from the start, but Vaggie could be suspicious or wary about that.
- Alastor might be charmed by the existence of a mortal kid in Hell and will have a sincere, if creepy, fascination with what Lincoln does and his growing demonic power. He might even offer to be the kids' mentor.
- Alternatively, if it's Ronnie Anne who meets the Hotel gang, she'll make a deal with Alastor to save Lincoln. Alastor would appear to have untoward plans for her, but ultimately let her go since Word of God says he Wouldn't Hurt a Child either (beyond dated disciplinary actions).
- Even Husk, the bitter drunk that he is, would try and be nice to Lincoln.
- What's more, Word of God declares that Husk is good with children and enjoys the magic shows, just like the white-haired kid, who is the junior magician himself. They could bond pretty well on common grounds.
- Nifty will wanna keep someone as precious as Lincoln clean and out of danger.
- Also, given that Lincoln is developing a more vicious split-personality Nifty may developed an obsessive infatuation with the cursed boy.
- Cherri Bomb would be like a mix of Luna and Lynn and would drag Lincoln to her "explosive" escapades. Alternatively, in the similar case above, she might develop an infatuation towards Lincoln as; although her feelings might be reluctant at first because of how young he is, but still feel drawn to Lincoln. Unlike Nifty though, Cherri Bomb would have a more laid-back, genial attitude compared Nifty's yandere, schoolgirl type approach.
- Vox would use Lincoln as a way to get at Alastor, Valentino would be similar to Mammon, seeing him as a potential money maker and Velvette on theme might be smitten to Lincoln and see him as the ticket to being the trendiest overlord in hell.
- Considering their Affably Evil characterizations, Carmilla, Zestial, and Rosie seem to be the ones most likely to form a positive connection with Lincoln should their paths ever cross. Rosie and Zestial will more than likely be charmed by Lincoln's sincerely optimistic, kindhearted, and idealistic disposition while Carmilla will more than likely display the same level of protectiveness towards Lincoln that she gives to her daughters, seeing him as an innocent bystander who was unfairly dragged down into Hell before he could live a full life and wishing to ensure his safety as long as he's confined in Hell.
- On the other end of the equation, the Vees are the ones most likely to come to blows with Lincoln due to wanting to exploit him for their own ends. As stated above, Vox will be quick to recognize the benefits of having a mortal child under his control who not only has access to Goetia magic that even the most powerful of Overlords can't access, but can freely venture outside the Pride ring to the other rings of Hell, which makes him something he can definitely use to help him in his conflict against Alastor. Valentino will no doubt see Lincoln as his next golden goose, especially given the boy's success with the ladies in Hell, and want to milk him for all he's worth. Velvet, meanwhile, will very likely see Lincoln as the ticket to her becoming the trendiest Overlord in the Pride Ring, if not all of Hell itself, but like other females residing in Hell that have met Lincoln already, will find herself endeared to Lincoln due to his cuteness and kindness and will probably treat him better than Vox and Val.
- Ronnie Ann will follow Lincoln, but will end up in Pentagram City where she'll meet Charlie and the rest of the Hazbin Hotel staff.
- No doubt that his sisters, his parents and his friends will go to the ends of the earth to find a way into Hell when they find out about his location.
- Luna in particular will be disappointed that Hell doesn't look anything like the cover art for death metal albums.
- Lucy would expect Hell to be a dark and depressing place full of anguish and misery. She would be shocked to see that it is so much like Earth especially places like Imp City and the Pride Ring.
- Considering the kind of person Killjoy is, she wouldn't give two shits about endangering Lincoln and exposing his existence if it means getting ratings.
- Judging from another Helluva Boss and Loud House crossover, Katie might consider doing worse.
- Lynn Sr. will share a brotherly bond with Moxxie, while Rita feels jealous and threatened by Millie's mothering the Louds girls at first. Though, she would appreciate her for fiercely looking after Lincoln giving his circumstances.
- Lucy will geek out at the prospect of meeting actual demons from hell.
- Lori and Leni will learn Lincoln hung out with Verosika and beg him to get an autograph. They might also get along with Loona. However Loona may get irritated by Leni at times.
- Lola and Lynn will threaten to hurt Blitzo if he hurt so much as a hair on Lincoln's head. Blitzo will deeply be terrified at Lola's wrath.
- The Loud's Luna for her part might have the best bond with I.M.P.'s Loona for their similar tastes and approaches to being big sisters to Lincoln.
- Lynn would be impressed by Millie's strength (and she may want to try her luck in the Wrath ring, despite Loona's observations).
- Lisa, being a scientist will refuse to believe where Lincoln went before trying to rationalize it.
- For when she does accept the existence of hell and demons she would look to see if there's a scientific way of breaking Lincoln's curse.
- Luan and Blitzo will share a couple of laughs, but will seem to annoy each other.
- Lola would be the one Blitzo bonds the best over their similar temperament and love of horses.
- Lana will immediately latch on to Loona since she combines the best traits of a dog and a big sister. At first, Loona will only barely tolerate it due to her being Lincoln's sister, but grows to grudgingly enjoy getting pets, belly rubs and ear scratches from her as time progresses.
- Angry at being kicked out of Heaven, they might get revenge on Lincoln, thinking if he had accepted their offer of taking him to Heaven, Deerie might have changed her mind about not kicking them out.
- They may even use Clyde as a potential pawn.
- She might despise him and be enraged that Stolas and Octavia are fraternizing let alone teaching a "lowly" human mortal and would do everything in her power to put a stop to it.
- She might be particularly evil and sadistic in doing this, becoming the final boss to the story in the process.
- She might notice Lincoln's demonic potential and use him as a pawn against Stolas.
- Subverting expectations, she may take a liking and be affectionate with the white haired boy. This likelihood may increase if she knows about Lincoln's heritage as Scottish royalty. Though still being Stella, may also want to use him to get at Stolas or even arrange to marry him off to Octavia.
- Lincoln may talk some sense into Stella as to Striker's true intentions and a possible threat to Octavia or herself.
- Andrealphus for his part might be similar to Paimon in that he may see Lincoln as a threat or a potential. Though would still reel Stella out of her more crazier plans she has for Lincoln.
- Should Lincoln remain in Hell for could, it is possible Verosika might genuinely fall in love with him once he gets older. Lincoln treated her with genuine kindness and given her good advice rather than objectifying her like so many of the damned.
- They could just stay friends, even when Lincoln grows up. A relationship can be platonic and meaningful. Hell, Verosika might hire Lincoln as her consultant or even a manager since he's proven to be both a good person and competent.
- Lincoln might go back to Earth, in which case they might have a surprisingly teary goodbye.
Now I.M.P. would have to struggle in a world where they can't commit violence indiscriminately without getting in trouble.
It is confirm that Blitz's skill is pointing out people's flaws. Blitz might point out the flaws of Royal Woods.
In an non-canon scenario, Both human in Royal Woods and Great Lake and Demons in Imp City would live together.
Lincoln will be a little wary about going up there, but do so anyway. He then bumps into Ronnie Anne, whose family is, for whatever reason, threatened by I.M.P.'s target. She'll read Lincoln the riot act over not getting in touch with her or his family back in Royal Woods, pointing out that the fact that he can leave Hell at all means he has a duty to let his loved ones know he's okay. After all, as stressful as finding out that your son/brother/boyfriend turning into a demon and hanging out with assassins is, it's at least better than leaving his fate to their imaginations.
Fortunately, Moxxie, Millie, and/or Loona actually manage to sooth her anger over, and seeing Lincoln's Positive Friend Influence over them does calm her down. She agrees to be Lincoln's Secret-Keeper since no one would believe her anyway, but tells him to get in touch with his family while he can.
Also, Ronnie Anne will mistakenly believe Blitzo to be Lincoln's kidnapper and deal a surprisingly one-sided No-Holds-Barred Beatdown on him before Lincoln intervenes on his behalf. Blitzo would be...genuinely impressed with Ronnie Anne's grit, shipping her and Lincoln so he can get his intern hitched while also having another potential Millie.
But what if a contract is taken out on someone Lincoln knows? And I.M.P. ignore his protests and shoot the innocent person, because morality isn't their business. How would Lincoln take this? Would he ditch I.M.P. and take his chances in Hell? Would he go along and slide further into evil? Would I.M.P. feel guilty enough to give up assassination as a whole? Lincoln might be forced to confront the brutal reality of Hell.
- Lucifer is a genuinely friendly guy and loving father figure and he will do everything he can to help Lincoln. Lucifer is literally a goofball, so this is the most likely best case scenario.
- Lucifer is a deceitful monster who lures Lincoln in with insincere charm, promising Lincoln help while planning to use and betray him. Jossed. Lucifer's not evil, at least in this universe, just got dealt a bad hand, because he wanted to give humanity free will, so this means he will have no ill will towards Lincoln when they eventually meet.
- Lucifer might genuinely like Lincoln, but prefer that Lincoln stays in Hell and works for him. After all, a living human kid with the potential to grow would be useful to him. If Lincoln protests, Lucifer will "persuade" Lincoln to work for him with a good, subtle threat. Same as before, Lucifer will endear himself to Lincoln without threatening him.
- As a compromise, Lucifer will let Lincoln get back to his family on earth on the condition, seeing his potential, he serves as a sort of hell guardian and accepts his demon side.
- Lincoln might accept this offer if it means he can keep his lives on both earth and hell.
- Lilith for her part might follow Charlie and would find Lincoln to be absolutely adorable and smother him with affection.
- Oum will report Lincoln's presence to his family: Lincoln's disappearance has caused a stir among his friends and family, who have moved Heaven and Earth to find them, meaning they've probably put a picture of Lincoln in a "missing persons" website. Out of fear and anxiety over Anne's disappearance, Oum might browse the wanted ads, spot Lincoln's picture, and contact him. The Louds, the Casagrandes, and Lincoln's friends might be confused, shocked, and angered over Lincoln somehow ending up in Los Angeles.
- Dan will hunt Loona for vengeance: Considering Dan's legendary determination to get vengeance on the things that wrong him, he'll move Heaven and Earth to hunt down and give Loona payback for his car. Dan could potentially attack Loona while I.M.P. is on a mission. Loona getting hurt could bring out more of Lincoln's inner demons, gradually pushing Lincoln toward embracing his bloodlust.
- Asmodeus would very be spooked by Lincoln's presence due to the events of chapter 15, but he and Fizzarolli will eventually warm up to and be friendly with Lincoln.
- They might help in Lincoln's efforts to go back to his family on earth or at least Ozzie can extend his stays up top giving his position and privileges as the King of lust.
- Lincoln for his part would encourage Ozzie and Fizz to be more open about their relationship to hell and Lincoln can be a push for Fizz to break his shackles with Mammon.
- Mammon of the Greed Ring would be the main rival of the Seven Deadly Sins for his corrupted ways. He Also might expose Lincoln's present and place a bounty on him DEAD or ALIVE.
- Mammon himself might want Lincoln for himself, seeing his potential and as a possible money maker he couldn't pass up.
- She'll think Lincoln's adorable and want to tease and feed him.
- Judging from her personality, She'll no doubt be absolutely chill with Lincoln, as well as grateful to him for saving her boyfriend, Vortex from the police and she'll definitely keep Lincoln's existence a secret from her fellow royals, making her the third higher-up to know about the sole human inhabitant in Hell, the first and second being Stolas and Octavia.
- She's willing to keep Lincoln's existence a secret, if he promise to come back to the Gluttony Ring to party with her and Vortex the next time they meet again.
- Lincoln will challenge her to gain her respect.
- As a royal of Hell, Lincoln will probably hope she knows something about curses and tell him something about how to break the one keeping him from staying back in Earth, to which Bee will probably reply she doesn’t know but will encourage him to not give up.
- Striker, during his confrontation with Blitzo, all but says Lincoln is an extremely valuable asset to have due to his access to demon magic that's off limits to imps like himself and I.M.P. Taking into account his grudge towards the upper class of Hell, it would make sense to assume he's aiming to somehow get Lincoln on his side to have the ultimate weapon to carry out his goals, using the very magic Stolas has been teaching him to take down the likes of Stolas and Stella. It would certainly justify him keeping Lincoln's presence in Hell a secret from Stella.
- Considering what kind of imp Crimson is, he will no doubt take an interest in Lincoln when he sees what the boy is capable of with the magic he has learned so far under Stolas and see him as a major game changer, deciding to make it his mission to get Lincoln under his control to become the most powerful crime lord in the Greed ring.
- Crimson believes that taking care of a human is a mistake so he'll force Moxxie to kill Lincoln or he'll do it for him.
- Whether that demon is Verosika or not is up in the air.
- Whether she might be his age or older is also a possibility.
- It might be Ronnie Anne as a demon.
- One of Stillman's victims will meet Lincoln.
- Some of the target will seek revenge on I.M.P.
- A relative like his great grandma Harriet whom Lucy took after and practiced the occult.
- Rick and Morty: As Lincoln have a conversation with I.M.P. he brings up RANDOM encounter. Rick Sanchez and Morty Smith a comes out of a portal as they past by.
- My Little Pony: Somewhere in the end of a original chapter, Blitz will end up in Equestria by one of Lincoln's spell.
- Happy Tree Friends: Lana will mention that she'll miss the show "where the main characters will kiss."
- Amphibia: Oum from chapter 18 will return to report Lincoln's presence to his family.
- Dan Vs.: Dan from chapter 18 will return to hunt Loona for vengeance after destroying his car.
- Hazbin Hotel: In the same universe with Helluva Boss so why not.
- The Owl House: Blitz will mention that he dated Eda once, a reference from another fanfic crossover.