Nack the Weasel is a Mobian Wolf/Weasel hybrid, and is both a dangerous and clumsy bounty hunter. Though willing to do whatever it takes to get a job done, he often messes up. He has come across Sonic the Hedgehog and the other Freedom Fighters many times, and even has a grudge against Princess Sally Acorn after a failed attempt to keep her hostage. He also has a sister named Nic, and although they don't exactly get along, they have worked with each other in the past. He has been known to take jobs from multiple clients, including Mammoth Mogul and even Robotnik. Recently, he has teamed up with Bean the Dynamite and Bark the Polar Bear to form Team Hooligan.