Sue Sezno (voiced by Kenan Thompson) is the acting principal of Knob Haven High, replacing its principal who was involved in an accident involving metal claws and making the air quotation signs during a play. As is obvious from her name, she doesn’t like saying yes. Sue Sezno is one of the characters in the Fox animated series Sit Down, Shut Up, based on a short-lived Australian sitcom of the same name. It revolves around a group of “ambivalent if not just plain crazy” faculty at a small town high school in Knob Haven, Flrida. The show is part of the network’s animation lineup that includes The Simpsons, Family Guy, and American Dad.