|This character exists primarily or exclusively within the Sonic the Comic continuity.|
Information in this article may not be canonical to the storyline of the games or any other Sonic continuity.
Bill Walrus was a walrus who appeared as a contestant on the game show Mock the Doc, presented by Matthew Corgi. The purpose of the show was to make fun of Doctor Robotnik, who was then ruler of Mobius.
Like the show's other contestants, Bill Walrus dressed up like Robotnik, with a fake nose, moustache and giant teeth. He also wore a traffic cone on his head and used a Sonic the Hedgehog-shaped hand puppet, and introduced himself as "Doctor "Don't call me cone-head" Robotnik". When Troopers arrived to shut down the broadcast, Bill helped to confuse them by pretending to be Robotnik and giving them orders.