The Mike Dame Posse is a secret(ish) organization formed by Mike Dame. It appeared in How to be a Good AP History Student 3. The purpose of the organization was to take down the AP History Guy, and consisted of people who had seen him firsthand. Members include:
The badass elite group themselves.
Mike Dame (leader)
Later members included the Second AP History Guy, Eric, and the AP History Guy himself.
In AP3, the posse enlisted the help of Ethan by giving him a grenade that he could use to destroy the AP History Guy with if he was ever kidnapped. The plan failed, and the Posse was left directionless, unsure of what to do. Unfortunetly, the AP History Guy himself ambushed the group and capture and zombified all of them, except for Mike. The Posse was then ordered to capture Mike, Ethan, and the Second AP History Guy, only succeeding in capturing the Second AP History Guy. After the AP History Guy explodes at the end, the Posse is returned to normal, and can be seen beating up the Second AP History Guy.
In AP: Apocalypse, the Posse has dwindled in numbers as a result of the zombie apocalypse, the only remaining members being Mike, News Director, and Other Guy. Morale in the group is low, and throughout the film there are frequent clashes between Mike and his two subordinates over their roles in the group. The Posse is in hiding in an abandoned church when they discover the existence of the Project History warehouse via leaked Educational Protocol government files, causing them to journey to Schagticoke NY in search of the HSX drug. On their way, the group discovers an amnesic Second AP History Guy and allow him to join them, though at the end he betrays them and usurps the AP powers for himself.
In AP: Ultimatum, the Posse is the lone resistance against the AP Regime, finding the resurrected AP History Guy in an attempt to defeat the regime. Determined to hunt them down, the Second AP History Guy orders the brainwashed Ethan to hunt down and execute the remaining members of the Posse. Ethan eventually captures them all, but they are freed by the AP History Guy after he regains his memories. Together with a resurrected Eric, the five members of the Posse attack the Hall of Springs in an all-out battle against the Second AP History Guy's zombies, leading to the death of the News Director and the defeat of the AP Regime.
The Mike Dame Posse was quietly disbanded after this, its only surviving members being Mike, Greg, and Other Guy.