Captain Archer: One of the test pilots in the NX program, Jonathan Archer helped develop the first Earth starship capable of warp 5, the Enterprise NX-01. He was awarded its captaincy prior to its first mission: to stop a Klingon civil war.
Dolim: A Reptilian commander in the Xindi alliance, Dolim fiercely believed in the Xindi Council's plan to eradicate the Human species, and would have annihilated Earth if not for the intervention of Captain Archer.