Wernher

 is an escaped slave from The Pitt who requests assistance from the Lone Wanderer in helping with a slave rebellion. He explains that the Pitt's Raider leader Ishmael Ashur developed a cure for the horrible mutations afflicting those living in the city, and wants the Lone Wanderer to help him and the slave rebel leader Midea retrieve the valuable commodity.

Wernher's true intentions are largely up to the player's interpretation. It is subsequently revealed that that Wernher was Ashur's lieutenant before he was enslaved for betraying his leader.

If you side with Ashur and successfully manage to get Wernher to leave he will curse everyone including the slaves. Showing his motives may not have been all that noble.

Equipment
Items found on Wernher:
 * .44 Round, Magnum (12)
 * Abraxo Cleaner
 * Frag Grenade
 * Power Plant Key

Bugs

 * There is a bug where Wernher, after killing all the raiders in the first battle upon entering the Pitt map, will discharge a few clips of his magnum into one of the trains. He will sometimes eventually stop.
 * There is a bug in which Wernher's left eye is fluorescent yellow. This is sparked from approaching him from different angles. It's just a minor glitch that doesn't seem to resolve itself.
 * There is a bug where after killing all of the raiders Wernher will start walking across the bridge and get himself killed if the mines aren't disabled.

Appearances
Wernher appears in The Pitt DLC pack for Fallout 3.