Jack Cabot

Jack Cabot is a scientist in Fallout 4.

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.

Other interactions
The player character might have a random wasteland encounter in which Jack and Edward appear either in the player character's 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.

Effects of player's actions
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.

Behind the scenes
Jack Cabot is 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.