Benjamin "Ben" Mason is a main character in the first, second, third, fourth season and fifth. He is the middle child of the Mason family.
After the initial invasion of Earth by the Espheni, he was captured by the invaders and harnessed. He is rescued by the 2nd Massachusetts Militia Regiment and assumes a prominent role in the resistance. Despite having the Harness removed, Ben continues to feel its residual effects and gaining several new abilities, such as superhuman senses, greatly enhanced strength, stamina and agility, and the capacity to communicate with Skitters.
Ben became a major part of the Skitter rebellion along with several other harnessed children such as Denny and he fought against the Espheni alongside his family and the 2nd Mass after they set up in Charleston, the capital of the New United States. After Charleston was destroyed by an Espheni counterattack against the humans and their allies, the Volm, Ben was injured protecting his sister, Lexi, and woke to find himself in a peace-haven which was later destroyed by an Espheni assault.
He shared part of his spikes with Maggie after she was paralyzed during an attack and, as a result, they have developed an attraction to one another.
