Admiral Steven Hackett is an admiral of the Earth Systems Alliance Navy's Fifth Fleet. He first appears as a minor character in "Mass Effect" who commands the Systems Alliance reinforcements which arrive to assist in the defense during the attack on the Citadel from Sovereign and the geth. During the course of the battle, he will defer to Shepard's wishes to either save the Citadel Councillors aboard the asari dreadnought the "Destiny Ascension", or press the attack on Sovereign's forces. By the events of "Mass Effect 3", he is the commander-in-chief of the entire Alliance Armed Forces in their struggle against the Reaper invasion.