Sonja is a minor villain who served as the main antagonist of "Quagmire's Quagmire", a Season 12 episode in Family Guy.
Role in the episode
She met Glenn Quagmire when he went to get his laptop fixed, and he discovers that she had the same kinky nature that he had. He eventually started dating her, and they start acting out their disturbing fantasies.
However, she soon publicly humiliates and beats Quagmire before stuffing him in the back of his car. She later attempted to make Quagmire a sex slave, but is foiled when Peter Griffin, Joe, and Quagmire's father go searching for him. She wounds up being overthrown by Joe and arrested. She was most likely sent to jail after the end of the episode.