- Marcus - a career military man who now operates on behalf of several ACS governments to coordinate attacks and the gathering of information against the invading enemy from across the rift.
- Matthias - Marcus' younger brother, a mechanical and strategic genius, he works with his brother to defend the ACS against the people from the other side of the rift.
- Cate - a longtime family friend of Marcus and Matthias, she's a brilliant scientist, but very unconventional; she loves to be in the middle of things and is fascinated by the world around her.
- Andreas - one of Cate's research assistants, he's a quiet steady young man with an eye for detail who can fix almost anything.
- Kris - another research assistant of Cate's and Andreas' sister. As quiet as her brother and never without a smile, she has a boundless and fantastic imagination and the mechanical skill to bring some of her more fantastic designs to life.
Eventually, there will be posts on each character going a little deeper into who they are and the part they play in the "story" along with sketches of them and their attire. There will be a lot - I have a big "family".