Carlyle St. Clair III

 is person living in the Mojave Wasteland in 2281.

Appearances
appears in Fallout: New Vegas. You need to find him in order to [SPOILER ALERT!] use him as an acceptable replacement for Ted Gunderson in the mission Beyond the Beef, if you chose to take the path of saving Ted Gunderson. Carlyle St. Clair is said to live north of The Strip.

Location
He is located in a shack not tangent to but directly northeast of Freeside's North Gate, and directly north of Crimson Caravan Company (on the map).

Bugs
Once you get to the shack, it is possible he will not be there. (Confirmed on PC)