Dr. Rosenberg is a scientist working at the
Black Mesa Research Facility. In
Half-Life: Blue Shift,
Barney Calhoun helps him and two of his colleagues escape from Black Mesa. Along with
Dr. Richard Keller, he also plays an important role in the events of
Half-Life: Decay, standing by the side of the two main protagonists,
Dr. Gina Cross and
Dr. Colette Green.
