Desdemona

“I have a question. The only question that matters. Would you risk your life for your fellow man? Even if that man is a synth?” — Desdemona on where the Sole Survivor's loyalties lie.
Desdemona, also known as Dez, is the leader of the Railroad in the Commonwealth in 2287.
Background Desdemona is the leader of the secretive organization known as the Railroad. Previous security breaches have lead to Desdemona being wary of those who manage to follow the Freedom Trail and enter the passcode to access the Railroad HQ. Despite this, those who can prove themselves to her will, in time, earn her respect, often to the ire of her second-in-command, Dr. Carrington. As the leader of the Railroad, Desdemona is in charge of day-to-day operations and maintaining contact with the widespread network of safehouses.
Desdemona first signed up with and joined the Railroad sometime before September 2276, serving under Pinky Thompson. Desdemona was voted into the Alpha position following the resignation of Thompson around December 2277. During her tenure, she, along with the assistance of Dr. Carrington and Deacon, made major changes concerning the organization's operational security, leading to a drastic increase in the number of synths successfully rescued. During her time as the Railroad leader, she devised a system of railsigns and improvements to the dead drops used for communication, and added Tinker Tom, Glory, and Tommy Whispers as members to Railroad HQ. P.A.M. was also discovered at some point during Desdemona's time as the leader.