Fantastic

 is a man living in the Mojave Desert in 2281.

Background
Fantastic is a lazy, laid-back idiot, posing as a "technician" with a theoretical degree in physics to weasel NCR's puppet government out of what is essentially free money. He keeps the Helios Plant operating at 1% efficiency, claiming all sorts of excuses as to why he can't get the plant to produce the other 99%, and why NCR should keep paying him.

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. If you get Helios running and send the energy where he asks you to he can later be found at the dam. Killing him may not result in hostile actions from people who witness it.If the player has the Wild Wasteland perk, when the player approaches Fantastic a small quacking sound will begin to emit, indicating the obvious fact that he is a "quack".

If the player chooses to kill the NCR in That Lucky Old Sun and leave Fantastic alive, when he/she returns he is wearing legion armour and has killed the other scientist.

Appearances
appears in Fallout: New Vegas.