Ok, he's not really a character per se (he's not an anthro and doesn't talk), but he's still part of my version of the Sonic universe. I was inspired by Sonic having a pet dog in the comics to give his family a pet in my story. No bashing or flaming of any sort, please.
Name: Sharu
Name meaning: King (ancient Babylonian)
Gender: Male
Species: Cave lion
Eye color: Golden
Fur color Tan with white on the belly, snout and inside of the legs. Also has faint spots.
Weight: 930 lbs.
Head-body length: 8 ft 2 in
Height: 4 ft at the shoulder
Bio: Sharu is the pet of Sonic and his family. Sonic's family is the ruling family of the Kingdom of Hedgehog, and they have a large menagerie. It was into this menagerie that Sharu was born. As a cub, he forged a bond with Princess Sonia (who was a little girl at the time) and is the closest to her. He is fiercely protective of her.
Additional info: Cave lions are an actual prehistoric species that I imported into the story to make it interesting. Sonia's relationship with Sharu is meant to be this story's version of Jasmine's relationship with Rajah.
Picture (taken from Wikipedia in order to give an idea of his appearance):