Winthrop

Winthrop is the maintenance man/chief engineer of Underworld. He maintains all things electrical or mechanical in the city, as well as the Mister Gutsy class sentinel robot named Cerberus. His name might be a reference to an innkeeper in Baldur's Gate. According to the Fallout 3 Official Game Guide, Greta is his "girlfriend", but this is contradicted in-game, where Greta is Carol's "partner".

Repeatable quest: This Old House
Due to a steadily declining supply of resources Winthrop requires Scrap Metal in groups of 5, in exchange for medical supplies (Stimpaks, RadAways or Rad-Xs.)

Bugs

 * Sometimes this Character may carry an excess of bottlecaps and other items(such as ammunition).The odds of this happening increases highly with the Scrounger and Fortune Finder perks.The amount of caps can range anywhere between 25-400 caps.(Confirmed,PS3)

Appearances
only appears in Fallout 3.