Stiggs

 is a robot repairman who is added to Fallout 3 in the add-on Broken Steel in the year 2277. He is located at the Adams Air Force Base in the Mobile Base Crawler.

Background
The Enclave recruited Stiggs when he was starving and sick from radiation poisoning. He is not proud of some of the things he has done while working for the Enclave, but he said he felt he owed them for saving him.

Interactions with the player character
He approaches you on the lower level of the mobile platform and asks if you are going to hurt him. If you kill him, you lose no karma but however, if you let him live, he can give you some information about the crawler. He then escapes the crawler and travels to the Adams Storage Facility with his Sentry Bot, Sparky, and his Mr. Gutsy, Hoover. If you follow them out of the Mobile Base Crawler he and the robots may turn hostile. A dialogue option opens up if you have the Robotics Expert perk, where your character speculates what system the mainframe uses. He will compliment you as finally being someone who understands what he's talking about, and says you'd be able to reprogram the robotic and turret systems inside the base so that they will target the Enclave instead of you.

Appearances
appears only in the Fallout 3 add-on Broken Steel.

Behind the scenes
Stiggs' name may be a reference to the BBC car program "Top Gear," where the test driver is called 'The Stig.'