Nelson is a doctor who appears in Alan Wake. He runs the clinic in town.
Background
He is a doctor in Bright Falls. He is also shown to have a love for fishing, this is evident by how he goes on about it while talking to Alan.
Alan Wake (Season One)
The doctor is first seen at the beginning of episode two where he is inspecting Alan, who's head has been wounded, for a concussion. Alan tells Nelson that he is fine, but he is lying so that he is not sent to hospital. The doctor leaves as Wake goes to visit Sherriff Breaker.
When Bright Falls is taken over by The Dark Presence, Nelson is seen by Wake and Breaker in his apartment, where he is yelling about all the commotion, which he believes to be caused by Deerfest. Breaker tells Nelson to just hold up for a while, and that the commotion will be over soon.
At the end of the game, Doctor Nelson is seen celebrating Deerfest.