https://sonic.fandom.com/wiki/Alpha_Grim_Sonic

Name: grim sonic/nick

Nicknames: Grim (y/n), boss, (grim knux), moron (grim amy), ALIEN (sticks the badger), the sales guy (sonic).

Likes: sponsoring his brand of merch, beating the competition, gloating about himself, speed, his latest album nick-tastic (it's literally just dubstep)

Hates: sonic, people not buying his products, team rebel (rivalry), his friends getting hurt.

Personality: thinks more about his brand of merchandise and sponsors than anything else, literally WILL be the guy who pose for any cameras, does care about his team but only cause Ames (grim Amy) is literally the one who pays the bills while knux (grim knuckles)

Catchphrase: a chaos tonic a day makes the money come rolling in.

https://www.deviantart.com/ecro2468/art/Grim-knuckles-Clone-1027793357

(I know he's a trooper but it's the colours that make him unique)

Name: grim knuckles/knux

Nickname: bro, (grim sonic) numbskull (grim amy), dumbass (eggman), bestie (amy rose), Michael J, knux (himself)

Likes: doing anything, cats, dogs, his friends, games, blueberry muffins, the colour blue, Amy (BFF).

Hates: being alone, losing his friends, red-bull, angry kittens with spikes. Tax's (Texas).

Personality: a goofball doesn't think twice (nor once), he doesn't pay attention (due to the fact he doesn't understand the words he's hearing), he has the capacity of a squirrel that forgets where it's food is, has a split personality that only triggers when he's really angry, if he has a weapon or a bomb he'll end up hitting someone on his side (he use to be in a group of other robots till he accidentally blew them up when someone handed him a grenade).

Catchphrase: Tucker did it/my name IS MICHAEL J KNUX!

https://sonic.fandom.com/wiki/Alpha_Grim_Amy

Name: grim Amy/Ames

Nicknames: mrs no-fun (grim sonic), mirror (Amy), doll (rouge), weed dealer, (knuckles), thot (shadow/eggman).

Likes: quiet reading, makeup, knux (when he's talking so much), rouge (fashion sense girls), latest fashion trends, her hammer (made it herself), my little pony (she has a pinkie pie plushie hidden reason why.. nick)

Hates: nick messing things up, being called a mirror or a thot, loud noises, nick fucking things up, dealing with idiots on a daily basis, Amy (she's annoying as hell), being called old, being addressed as an IT, her makeup/paint-job getting ruined, her old teammates,  the fact she's the only normal person around, not having the ability to drink nor to get drunk.

Background: she's actually the very same grim amy that was tossed out the dome into the shard-verse (from sonic prime, the reasoning behind her survival is because she was created from the energy of the shards so it only make sense that once she was out the grim world she'd be cut off from its timeline cause time works differently in the different worlds) but wasn't left unharmed she was in a pretty bad shape and lost a good amount of memory files due to her crash landing somewhere in dump but stable enough to move an arm and her legs but they were a damaged so she was stuck limping for a while or two till she get/find some parts to fix herself, it would take her years but she was fixed up, alive and in one piece and fitted herself a fancy voice box (if I see a one piece comment I'm gonna scream), but she would come across Knux who was trying to open a door by pushing it but it was a pull instead, while on one of her "walks" as she would call them when she helped him knux just stuck around Ames to this day, eventually she would meet Nick when he tried to sell her one of his "latest brand of grim sonic's chaos wax" but she knew it was a scam so she tried to walk away but just like knux, nick stuck to her trail like glue and as much as she tried to get away from him she would have to come to terms with the fact he wasn't leaving, the reason behind her sense for fashion was thanks to a run in with rouge when the bat tried to "borrow" any valuable items she could find sadly there weren't any but the two did get to spend time chatting... after they had a little roughhousing (aka they fought tooth and nail to beat the other) and the rest would be history from then on.

(Like the last bio I don't own any of the art here they belong to their respective artists who's links are underneath them)