Tetsu Ushio

Tetsu Ushio serves as a security guard within the Satellite area, using his physical strength and dueling skills to enforce his authority. He is known for extorting money from students in exchange for protection, a tactic he famously used against Yugi in the original series. While he functions as a recurring antagonist throughout most of the franchise, his role shifts from a simple bully to a significant supporting character during the 5D's era.