Principal Bridges

Principle Bridges is the principal of Ballston Spa High School, the setting of the AP Trilogy. He appears in How to be a Good AP History Student 3. He is played by Sean McAuliffe, father of director Jacob McAuliffe, playing a grumpy bald character as usual

When his friend Tommy is kidnapped by the AP History Guy, Ethan goes to Bridges for help. However, Bridges dismisses him, saying the idea of a scary guy with a white tee going around kidnapping students is ridiculous, as well as revealing that he saw Tommy earlier that day, leading to Ethan finding Tommy (as a History Zombie).

Later in the film, the Second AP History Guy kidnaps Bridges and holds him hostage, threatening to kill him over the school news unless the school listens to his AP History lessons. Over the hostage video, Bridges can be heard saying how he hates kids. Although Bridges isn't seen for the rest of the film, it can be implied that he safely escapes after the Second AP History Guy is defeated.

The principal returns in AP: Apocalypse, appearing on the Ballston Spa High School news during the initial zombie outbreak. Warning the students to evacuate Ballston Spa, Bridge compares the zombie apocalypse to attending graduations, only to be caught and blown up in a sudden explosion as the school is destroyed.

The character of Principle Bridges shares many similarities with the character of Mr. Bridges from Jacob McAuliffe's earlier film,  Detention , including the same name. Some theorize he is the same character, somehow promoted to a principle.