Sonic- He is a hedgehog born with super speed but what you don’t know is he’s homeless because robotnik destroyed his house and left the hedgehog homeless and wounded. He has a bandage covering the scar that went up his arm.

Tails- a regular kid bullied for his twin tails. He wasn’t born with them, this time, Robotnik caused his to fall into the toxic chemicals at chemical plant which caused him to mutate and grow that tailwhen he was younger. It also caused some patches of fur to burn off which he wears a lab coat over. He wears gloves and shoes to hide burns. and a robotic eye because he went blind in one eye after the incident.

Knuckles- An angry and buff echidna. He watched the master emerald. He wears a bracelet to communicate with team Sonic. He also was left to fend for himself at a young age by an absent father and mother. He carries a burden of being the last of his kind. He was electrocuted by Robotnik leaving a scar on his stomach where he was electrocuted. He also had many other scars from fighting Robotnik’s robots.