Three Dog is the radio host, DJ, and news anchor of the Galaxy News Radio station in the Capital Wasteland in 2277, playing music that would have been heard on the radio in the years leading up to the Great War, as well as the immediate post-war era. Three Dog believes in 'fighting the good fight' which is anything that opposes the evil in the wasteland, be it raiders, the Enclave or slavers, this belief has caused him to ally himself with the Brotherhood of Steel.
President John Henry Eden
President John Henry Eden is an artificial intelligence unit known as the President of the Enclave, and by extension the President of the United States, in 2277.
Owyn Lyons is the leader of the East Coast Brotherhood of Steel in 2277. He is the father of Sarah Lyons, a sentinel in the East Coast Brotherhood.