James O'Brian is a major character and a reluctant ally featured in Days Gone.

O'Brian is introduced as a graduate student who helps protagonist Deacon St. John evacuate his wife Sarah at the beginning of the outbreak, only to be believed dead.

it is revealed that O'Brian is still alive and working for N.E.R.O., now a lieutenant. He is part of a recon team investigating Freakers out in the wild. O'Brian is found by Deacon and You.

He can’t take off his hazmat suit, making him faceless.