Stefan

Stefan is a friendly glowing one in the CEO offices of the Red Racer Factory in 2277.

Background
Stefan is the Surgeon's "assistant," and it took a considerable amount of trepanning (and radiation medicine) for Stefan to become docile and loyal, like a dog. Stefan's job is to maul or cloak in radiation any intruder that dares threaten his master, as well as test subjects the Surgeon deems too unruly or not reacting properly with their implant chips. These are never referred to as "mistakes" though; the Surgeon doesn't make mistakes.

Effects of player characters
Since the Surgeon "reprogrammed" his mind, he is non-hostile unless you kill his master.

Appearances
Stefan appears in Fallout 3.

Bugs

 * After killing the Surgeon, Stefan will occasionally not turn hostile like he normally should.