D. Clarke

Initiate D. Clarke, CL-312I, is a character appearing in Fallout 4. He works in the supply depot of the Boston Airport under Knight Sergeant Gavil, but will not appear there until the quest Duty or Dishonor is started.

Background
Clarke is a member of the Brotherhood of Steel who joined at roughly the same time as Lucia. The two were part of the Brotherhood for at least two years, and were largely considered friends with each other. However, shortly after the battle to take over the Boston Airport, Clarke started to become more reclusive and distant, and started to gain strange antics, such as searching through Lucia's personal belongings. He was then assigned to Logistics, and kept count of supplies alongside Lucia. However, supplies (specifically food) were being reported as missing without reason.

It is later revealed that Clarke himself is taking the food crates and bringing them to a ghoul infested region of the Boston Airport, and feeding the ghouls, in an attempt to not only prevent the Ghouls from attempting to attack the nearby base, but also to show morality to the ghouls. He does this in response of what happened to take control of the Airport, as he viewed the killing of these former human beings, even when they were running away, as slaughter. The Sole Survivor, investigating the missing supplies, discovers this, and is allowed to decide Clarke's fate. Either they can tell Clarke to run from the Brotherhood to evade punishment, pass a moderate Charisma check and tell Clarke to accept blame for the missing supplies, or kill him outright.

He can later be found incarcerated at Cambridge Police Station if successfully convinced to turn himself in. If he was told to flee he can be encountered randomly in the wasteland being chased by feral ghouls. If saved he will berate the Sole Survivor for killing them.

If he was convinced to turn himself in, but the player sides with the Railroad, he can be released while on the mission Precipice of War, will not be able to be engaged in conversation, and will say that he doesn't understand what's going on.

Effects of player's actions

 * The Sole Survivor has to find Clarke and confront him, either by speaking to or killing him.
 * Danse hates it if the Sole Survivor kills Clarke, even if he attacks first.
 * Cait likes it if the Sole Survivor kills Clarke and dislikes it if the Sole Survivor convinces Clarke to turn himself in.
 * Deacon dislikes it if the Sole Survivor tells Clarke to turn himself in.
 * Curie dislikes it if the Sole Survivor convinces Clarke to turn himself in and she hates it if the Sole Survivor kills him.
 * MacCready likes it if the Sole Survivor kills Clarke and dislikes it if the Sole survivor convinces Clarke to turn himself in.
 * Piper Wright likes it if the Sole Survivor tells Clarke to turn himself in, and hates it if the Sole Survivor kills him.
 * Nick Valentine hates it if you kill Clarke
 * If the Sole Survivor tells Clarke to flee, then destroys the Prydwen later in the story, he can be found in the Boston Airport Hangar. Talking to him, he'll only respond by nervously saying, "I can do this. I can do this."
 * If Clarke is told to flee he may be encountered at a later time (randomly) accompanied by several feral ghouls. These ghouls are hostile and if they are killed (even by an NPC) Clarke will be angry with you for their deaths. NOTE: Clarke may try to initiate conversation while still in combat with the remaining ghouls.

Appearances
D. Clarke appears only in Fallout 4.

Clarke