Fantastic

 is a crazy man living in the Mojave Desert in 2280.

Background
He works for the NCR to retrieve the weapons and secrets of Helios One, while also working to get Helios One's laser back up and running. NCR's changed their minds, due to a lack of results, and want him to step down.

Interactions with the player character
You can either help him get the laser running for the NCR or kill him and use it for yourself.

Appearances
appears in Fallout: New Vegas.