Pre Plague worked for the Army.
Plague Meets Henry at a lecture Dean was giving. Dean and Henry work at an aide station together where Dean meets Joe who brought some sick patients to. Goes to Ashtonville to help Joe and Ellen with plague victims. Tries to cure Ellens daughter Taylor but it doesnt work.
Post Plague Runs the labs at the clinic and the cyro lab in Beginnings. Has very bad luck with being the set up guy. In a relationship with Ellen. Competes with then eventually has an understanding with Frank. Has very few friends or people that likes him.