It's time for my third what sonic characters i think would be list. And this time it's Regular Show.
Knuckles the Echidna=Mordecai
Sonic the Hedgehog=Rigby
Shadow the Hedgehog=Benson
Vector the Crocodile=Skips
Dr. Eggman=Pops
Grounder & Scratch=Muscle Man & High Five Ghost
Tikal the Echidna=Margaret