Doctor Sonia Powell is a gifted physician and general medical expert in Deadwood. She is in her mid-thirties and healthy. She is said to have originally come from Magellan.
Dr. Powell is looked up to as a community leader and font of knowledge in Deadwood. She runs both a modest but well-kept clinic as well as an orphanage/schoolhouse where she takes in straggler children of the Wastes and provides education and training. She is a symbol of progress and healing in the bleak world of the Wastes.