Supervisor White was created before the Great War by Doctor Edward Gray. Unlike the other Mister Handy robots at Graygarden, she, along with the two other supervisors Brown and Greene, was designed with distinct personalities and voices based off of Gray's favorite television show characters. Gray gave White a feminine personality to differentiate her from the standard Mister Handy personality.
White, designed to be a supervisor of the garden, was also given sophisticated cognition processors, enabling her to be able to perform complex analysis and decision-making. With the help of supervisors Greene and Brown, she ran the facility for over two centuries without a problem. In 2287, she has noticed lower water pressure in the facility as well as radiation-contaminated water coming in from the Weston water treatment plant and is looking for anyone willing to fix the problem.
Troubled Waters: White sends the Sole Survivor to the nearby Weston Water Treatment Plant. Upon completing this quest, Graygarden becomes a permanent settlement.
Although Supervisor White has the standard saw blade, flamethrower, and claw-grip, she clips at the plants as if she has scissors or a trimmer.
During the first conversation with her, there are two times that Sole Survivor can say they remember the place from before the Great War. If both lines are chosen, White will say the Sole Survivor is confused because they cannot have lived for so long. However, if only the second one is chosen, an additional point of conversation will appear in which White asks how the Sole Survivor managed to survive this long.
↑The Sole Survivor: "Why did Doctor Gray give you these unusual personalities?" Supervisor White: "Genius is restless, darling. It abhors stagnation. Doctor Gray was tired of the standard Mister Handy personality. He looked to his favorite television characters for inspiration, and we are the result." (Supervisor White's dialogue)
↑The Sole Survivor: "That's pretty ingenious. I bet you can work around the clock." Supervisor White: "We supervisors - that is, myself, Greene, and Brown - possess sophisticated cognition processors. We are capable of complex analysis and decision-making, a testament to the genius of our creator, Doctor Edward Gray." (Supervisor White's dialogue)
↑The Sole Survivor: "It's... nothing special." Supervisor White: "It’s ghastly, that’s what it is. Simply ghastly. Pressure is down. Radiation is up. Why it’s practically toxic. Just think what it must be doing to my skin! This will never do. I don’t mean to impose, darling, but… perhaps you could lend us a hand?" (Supervisor White's dialogue)