Tom Mason

Thomas "Tom" Mason is the current second in command of the 2nd Massachusetts Militia Regiment. Before the invasion, Tom was an American History professor at Boston University. In his wildest dreams, he would never imagine that his vast knowledge of warfare would be used in an actual war, much less a war against invaders from another planet. His wife was murdered at the hands of the invading aliens and his son, Ben, was captured by them. It is Tom's duty to protect the rest of his family including his oldest son Hal and his youngest son Matt. Despite Tom's commitment to his new duties, his primary duty is still to rescue his son Ben; who he manages to rescue.

In the first season finale, he lets himself be taken by the Slenders when they promise that, if he does what they want, they will stop his son from turning into a Skitter.