Thomas "Mac" McAllister

Sergeant Thomas "Mac" McAllister is soldier in the British Army who had a promising career until he assaulted a senior officer. The only survivor of a disastrous mission to render the terrorist Omair Idrisi, he was due to be court martialled for striking a senior officer until the revived Section 20 reassigned him. He is initially partnered with Wyatt, whom he initially finds to be irritating, but the two gradually develop camaraderie. McAllister is promoted to team leader in Revolution, much to Wyatt's amusement. He proves to be a capable leader but struggles to follow orders that clash with his sense of right and wrong. He is temporarily demoted when he deliberately defies a direct order and risks compromising the entire mission.