Hal Mason is Tom Mason's oldest son, and Matt and Ben's big brother. He is determined and brave, and fights along his father's side. He has a romance with Karen, but it is hard for him to keep up with that while fighting against the aliens.
Hal: So, are you going to tell me what you have in mind or are we going to stare at each other until the sun comes up? Shaq: That would be a terribly inefficient use of our time.
