Winthrop is Underworld's technician. He checks on the electricity, makes sure any plumbing is in working order, and generally takes care of everything maintenance-wise. He restored and reprogrammed the robot Cerberus, and is responsible for its maintenance. Winthrop sleeps for a few hours in his little workshop off the concourse, and is occasionally joined by his girlfriend Greta.
This Old House: Due to a steadily declining supply of resources, Winthrop will trade the Lone Wanderer one stimpak, RadAway, or Rad-X in exchange for every five pieces of scrap metal. With a high enough Strength, he can be threatened into handing over ten stimpaks for free. After this, he will refuse to speak with the Lone Wanderer again.