Matthew Spencer "Matt" Mason is a main character in the first, second, third and fourth season. Matt is Tom Mason and Rebecca Mason's youngest son.
In season one Matt makes a birthday wish that everything returns to the way it was before the invasion, Matt volunteers to help Scott with the radio and Pope with making ammunition.
In season two Matt participates more in the fighting, and in season three he continues to fight.
In season four he has been captured and placed in a re-education camp to brainwash young humans into believing that the Eshpeni are benevolent. Matt later escapes when his father breaks him out and Matt reconnects with the 2nd Mass.
