Immense foreign space-going vessel.  Its configuration is a rotating torus with a central hub where shuttles park.  Originally owned by the Chekowan, who claim it was constructed by god-like entities they call Outsiders.  The one in orbit of Earth was hijacked by the Five Saviors of the Angmari.

• The people from the nation of Angmar.  After the destruction of their home world, they traveled to another solar system with a fleet of vessels, including the Angelship.
• The language used by the Angmari people.  It is nearly identical to English, with pronunciation similar to the American Midwest accent.

An Army veteran whose wife died overseas from a road side bomb.  Currently a middle-aged quality assurance technician, his primary interest is training mixed martial arts.  He had a brief amateur fight career (1-1 record) before his life derailed.  Mike owes a lot of money in back taxes and drinks too much.

Housemate of Mike and formerly the best friend of Susie Dombroski (deceased wife of Mike).

Sam is a disaffected college student looking for meaning in her life.  Also a major fan of science fiction, though her interest in actual science is limited to cool facts.

Marius is an Angmari deserter who came to Earth planning to carve himself a place in history by creating a planetary defense army.  He is one of the Five Saviors of the Angmari Fleet.