Icon disambig
For the character from Fallout, see Sid (Fallout).
For the character from Van Buren, see Sid (Van Buren).
All dead! They're all dead!

Sid is an insane human in Vault 87 in 2277. He is trapped in Isolation Room 03.


Sid and a group of his friends were captured by super mutants in Vault 87. His friends were mutated into extremely deformed creatures, and he was told that he would soon meet the same fate. Upon the Lone Wanderer's arrival in Vault 87, Sid had lost almost all rational thought as a result of his situation.[1]

Interactions with the player characterEdit

Interactions overviewEdit

Perk empathy synthesizer
This character is involved in quests.


  • Finding the Garden of Eden: Depending on the method one chooses to release Fawkes, Sid will attack the Lone Wanderer. If one frees Fawkes by activating the lab's emergency fire systems, this will open all the other isolation rooms, freeing both Sid and two centaurs. Although both are hostile towards you, they will also attack each other if either of them spot the other before the player character; Sid most commonly dies in this scenario. Unlocking the door via terminal will result in Sid being hostile towards player as well. Picking the lock to the door however does not turn Sid hostile; he will keep acting as he was still locked in the cell. If the fire alarm is activated, Sid will attack the player even if his cell was already open. Sid will also become hostile if the door is "unlocked" through the terminal after the cell door is picked open.


Apparel Weapon Other items
Merc grunt outfit Lead pipe
Assault rifle

Notable quotesEdit


Sid appears only in Fallout 3.

Behind the scenesEdit

In the G.E.C.K., there are dialogue options explaining that he killed all of the people in his isolation room and was moved to another isolation room by super mutants, which will explain the isolation room with 2 dead wastelanders and a raider. While sneaking, super mutants will be talking about throwing only the strongest people into the "green goo" to make more super mutants who will destroy humans, which is why Sid is locked in the isolation room.



Community content is available under CC-BY-SA unless otherwise noted.