Tom

Tom (トム) was one of the graduates from the 104th Trainees Squad.

Battle of Trost District arc
During the invasion of Trost in the year 850, he is part of the squad including Jean and Mikasa whose Maneuvering Gears start to run out of propulsion fuel. He is present for Mikasa's inspirational speech to retake the Headquarters, and is rallied along with the other trainees to do so. However, he still faces the problem of dangerously low gas in his propulsion tanks. His fuel is finally depleted and he is surrounded by a group of Titans. Two of his teammates(presumably his friends) rush in to help him(against Jean's orders) and are both killed as a direct result. Tom is then devoured by a Titan. Jean, who is in charge of the squad, capitalizes on this opportunity and uses him as bait to distract the Titans while the rest of the squad make their way back to the Headquarters to resupply. Jean later regrets this decision and realizes that he used Tom as a scapegoat to ensure the survival of the other trainees, and most importantly, himself.

Tom