Jack Cabot

Jack Cabot is a scientist in Fallout 4 based off real-life rocket scientist Jack Parsons, known for his experimental work with rocket propulsion in the 1940's and for being a leader of the OTO, a religious group which practices magic and rituals.

Background
Jack has been studying an ancient artifact that supplies his family with a serum to defy aging. He lives in the Cabot House with his mother and sister. The house is guarded by a Sentry Bot and you are not allowed to enter unless on the quest given to you by Edward in Bunker Hill, or you successfully pass two consecutive speech checks.

Interactions overview
The player character might also have a random wasteland encounter in which Jack and Edward appear either in the player characters settlements or on the road. Jack offers to purchase any fiber optics the player character might have, which are necessary for a research project he will not discuss.
 * If the player character sided with him during the quest The Secret of Cabot House, he will provide caps and a unique gun in a week after talking to him, the Lorenzo's Artifact gun.

Appearances
Jack Cabot appears only in Fallout 4.

Easter Egg
If you side with Jack and get the weapon he references that he wants to travel to the Southwest and look for an alien city in the Mojave, a reference to Fallout New Vegas.