Yu-Gi-Oh! GX Episode 7: "Duel and Unusual Punishment"
Leader of the Disciplinary Action Squad
The chairman is an official at Duel Academy. She leads the Disciplinary Action Squad, which is a group of security agents that intervene when a student has committed a serious crime. She escorts Jaden Yuki and Syrus Truesdale to Chancellor Sheppard's office after their trespass at the Abandoned Dorm.
The chairman appears in Yu-Gi-Oh! GX Tag Force, where she can usually be found in Chancellor Sheppard's office. She claims she doesn't duel and states that she needs to increase the security at Duel Academy for the Tag Force tournament, as there will be duelists from outside Duel Academy participating.