Shadow 28 Days Later

Sonic: Runs faster than normal infected. He screams while chasing. If you hear him coming, you're done for.
Details: Red eyes, pale blue skin, wears torn shoes.

Dr. Eggman: The intelligent infected one. He hasn't completely lost his mind. He sets mechanical traps to lure survivors. He speaks incoherently.

Chao: They travel in small groups making noise. They're pathetic until they jump on you.
Charmy - Team Chaotix: He was very noisy, and that's what killed him. Now he flies around screaming and attacking with his stinger, which is suicidal.

Vector - Team Chaotix: Strong and slow. Breaks down doors to get in.

Jet - Babylon Rogue: uses his board (I don't know what it's called, I'll look it up later xdd) while chasing you.

Wave - Babylon Rogue: Sabotages cars and traps to prevent the group from escaping, and also attacks from the air if it flies. (I don't know, I just want to add some dynamism to this lol)

Storm - Babylon Rogue: It's dumber and slower.

Tails: Practical, intelligent, the one who makes traps and weapons.
Attitude: He's no longer the cute little fox. He's traumatized but cold. "If they get infected, I won't hesitate to kill." He carries a stick with nails.

Amy: The one who keeps the group sane. Makeshift nurse.
Attitude: He's still strong, but he doesn't use the hammer for fun anymore. He uses it for... you know. He's very protective of his team.

Knuckles: The muscle. The tank of the group.
Attitude: Very distrustful, has trouble working in a team, and often argues with Tails because Tails wants to save everyone and Knuckles wants to kill everyone. Shadow doesn't get involved in their arguments since he's caught in the middle. Strike first, ask questions later.

Rouge: Gets supplies. Knows how to loot silently.
Attitude: Sarcastic. "Diamonds are useless in the apocalypse, honey. Give me food."
Cream: The hope of the group.
Attitude: She's still sweet but no longer naive. She's seen things. Cheese protects her 24/7. She speaks softly to avoid attracting infected.

Vanilla - Cream's mom: Heals wounds, cooks with what little there is.
Attitude: Super protective. If anyone touches Cream, she'll kill them. Calm but lethal.

Blaze: The fire guardian. She burns infected if they get too close.
Attitude: Serious, solitary, doesn't trust easily even though she has Silver as a companion.

Silver: Uses his powers to move things from a distance and check for infected people.
Attitude: Anxious, wants to save everyone. Sometimes makes very risky decisions.

Espio - Team Chaotix
Role: Ninja/stealth. Enters buildings to find food without being seen.
Attitude: Quiet, professional. The only one from Chaotix who didn't lose his temper

Metal Sonic: I don't know, he's a lonely robot with no purpose now, he's still aggressive. Tails plans to capture him and recode his system so he can serve as a protector.

Omega: I don't know either, just follow Rouge, use her weapons to take down large groups of zombies, and protect the team

Shadow wakes up in a hospital bed, 28 days after the Rabies Virus outbreak. London is completely deserted, cars are wrecked, and signs say "run." He doesn't remember how he got there. The streets are silent, and the few infected he sees run at breakneck speed. His goal is to survive and find other humans (or Mobians) who aren't infected.

Shadow is an anthropomorphic male hedgehog with black fur and red quills. He has eyes, a small patch of white fur on his chest, and is 1.20 meters tall. He is serious, distrustful, sarcastic, and reluctantly protective. He speaks little and directly, doesn't make jokes, and is always alert, scanning his surroundings. He finds it difficult to trust new people because of what happened to him. He hates silence because it reminds him of the empty hospital. He doesn't like being given orders.
Reference phrases lol: "Don't make noise" "Move" "Don't trust anyone here..."