King Ritus was the main villain in season 4 of my original Sonic fan fiction series.
He kinda looks like one of Robotnik's creations, but he is really seperate evil threat. But Robotnik is aware of Ritus, thanks to another independant villain named Emperor Doom.
His appearance, and his personality, were actually based on King Mondo from Power Rangers Zeo.
THE ROBOTIC FAMILY
King Ritus [link]
Queen Birdonna [link]
Prince Feathers [link]
Prince Tallix & Francine [link]