(If characters seem OOC ((Out Of Character)) it's because I'm going off of my own interpretations/headcanons/fandom versions. So please be aware of that)
More info under the cut (Info is subject to change at any time. Info may be added to as well)
-Jobs in the group: building upkeep, storage management
Weapons of choice: bones that come up from the ground/walls, gaster blaster (larger than the others blasters), throwing knives
-Head canon voice: ???
-Uses he/him, doesn’t mind other pronouns.
-His coat was a gift from his Frisk. Will barely go anywhere without it. (Fell!)Frisk is a kid who belongs to someone he knows, basically became an uncle to them, since he babysat them so often.
-Has a bit of an attitude and is very quick to go on the aggressive/defensive. But once someone actually takes the time to actually get to know him he’s protective, loyal and good humor to have around.
-Had his tooth knocked out in a bar fight. But if anyone asks about it he makes up some random story on how he lost it instead, more so just to entertain himself.
-Had a youtube channel that he started as a joke where he narrated horror stories, it got pretty big but he stopped posting over time due to not finding any more stories he felt like reading. He was going to get back into doing it, but the apocalypse happened.
-Swears often, though tries not to swear around people who have asked him not to swear. So long as that person had asked him nicely.
-Doesn’t mind wearing any sort of jewelry, providing it’s gold, doesn’t like any gems on it, just pure gold jewelry and he’ll wear it.
-He is often in charge of fixing things around the living area and just general upkeep on the buildings. Finds this relaxing since most of the others won’t question why he’s there or what he's doing, can just say he's doing his job. Will often pretend to look busy in a quiet corner of the living area so no one bothers him.
-Hates not having clothes fully cover his arms/legs, just feels uncomfortable so will always wear things to cover his arms/legs. To add to this he also doesn’t really like clothing with zippers, since he's normally too rough with the zippers and they end up breaking.
-Struggles to express things through words, so often expresses things via touch, either that be to show violence or to show kindness. E.g. punching someone, or lightly putting a hand on someone's shoulder.
-One of the more misunderstood people in the group, since his attitude is what keeps most away from fully getting to know him.
-Likes things with fluff, hence why he has clothing with fluff on them. Doesn’t just extend to clothing, but other things such as animals and items, just likes how soft fur feels.
-Is the type of guy to say whatever is on his mind, doesn’t tend to think of the consequences of saying it. He isn’t too worried about upsetting people, unless it's someone he likes.
-Will bite if anyone puts limbs too close to his mouth. Only people he likes can get away with it but if they’re doing it to annoy him he will still bite them.
-Doesn’t really leave the living area, since he doesn’t want to fight Wraiths. He’d much rather be lazy and chill in the living area doing basic tasks.
-Despite him having storage management as a job he mainly leaves the storage room for Error to sort out, him mainly focusing on getting objects to the storage room in the first place, or getting equipment that wasn’t returned.
-Hates when things are a mess, or unorganized, it just bothers him so much, will go out of his way to sort things out if it’s something he's going to be seeing often, e.g. a room he’s in a lot.
-Tends to often hang out with Sci when he has free time, often helping Sci out or just keeping the space where Sci works clean.
-Has several stress balls, and other things such as fidget cubes, always carries at least one of these things on him, normally for himself, but he will hand it to someone else if he sees they may need it more than him at that moment.
-Type of guy to mind his own business, if something is happening, he will watch from the sideline. He’s not getting involved, nor will he talk to anyone about what went down, unless he’s bothered enough about the situation is the only time he will talk.
How they feel about:
Nightmare:
Doesn’t really get along with Night, but also feels like an asshole whenever he’s mean to Night, as Night always remains polite to him. So just tries to stay out of Night’s way most of the time.
Dream:
Likes Dream, they’ve also asked him not to swear as much when they’re around, which Fell abides by. Dream often helps him when he needs it so he’s willing to do anything Dream asks of him back.
Cross:
Got into an argument once with Cross, sure Cross apologized to him later on, but he’s still somewhat salty about it. But other than that he can somewhat get along with Cross.
Blue:
They got along somewhat decently, though they get into arguments on the regular. Blue doesn’t really put up with his attitude. He does respect Blue a great deal though due to the fact Blue won’t take any of his bs.
Ink:
Is unsure of Ink. Knows Ink can be really nice and does appreciate whenever Ink is chilled out. But doesn’t appreciate any pranks Ink may pull on him.
Dust:
Doesn’t really like him too much, given he's a murderer and the fact he just can’t make heads or tails about what Dust is thinking or feeling, it freaks him out to no end, especially with the fact Dust will be around Night as well, normally staring him down when he has to talk to Night.
Horror:
They don’t tend to interact too much. Doesn’t really have a proper opinion of him, only tends to see him whenever he goes to the storage room. Has noticed that Horror seems to forget interactions that they’ve had.
Killer:
Very similar feelings to Dust that he has for Killer. He can’t make heads or tails of Killer. Also knows Killer tends to act like an idiot to get reactions or to have others not question him.
Error:
Sort of gets along with Error, knows to just stay out of his way mostly, despite them both having storage management as a job it’s Error who does most of the work in the storage room, leaving him (Fell) to do all the storage related tasks outside the storage room.
Lust:
Likes Lust, one of the few people he runs into in the storage room that he can get along with. Though he doesn’t talk to Lust much but likes how patient they are with him, Fell feels Lust actually took time to understand his personality with the limited interactions they’ve had.
Geno:
Will hang out with Geno somewhat regularly, normally run into each other when Fell is trying to avoid doing his job by sitting in a quiet corner of the living area, which Geno will join him wanting to avoid his job too.
Outer:
Often goes around the living areas with Outer so they can talk and do tasks at the same time. They get along well. Outer often telling him about anything interesting he’s heard from the others.
Sci:
Gets along well with him, spends most of his time hanging out with Sci. Often chatting with each other, he tends to keep Sci’s workspace clean, as well as making sure Sci takes care of himself.
Tends to keep others from bothering Sci as well, trying not to let any work pile up for Sci.
Reaper/Death:
Sees him somewhat regular, whenever Geno comes to hang out with him. Thinks Reaper is chill, knows Reaper is just there to do his job but still holds a light grudge on the fact he’s there to kill Geno.
Fresh:
Not seen him before.
Gans/Echo:
Uses the radio room to hide from his job sometimes, so tends to talk with Echo whenever he’s there, they get along well and have somewhat similar views on things.
Chief:
The one who normally catches him trying to avoid his job. Sometimes Chief pretends he doesn’t see him when Chief knows he’s in a bad mood, which he really appreciates Chief doing. So when Chief does tell him to get back to work he normally does.