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For an overview of characters named Brian, see Brian.


Officer O'Brian is a member of Vault 101 security in 2277.

Background[edit | edit source]

Lightly armored and keen to deliver a bit of punishment to the vault civilians, Officer O'Brian is a vicious, unthinking man who delights in the pain of others. The confusion of the Lone Wanderer's escape makes his violent tendencies all the easier to hide.[1]

Officer O'Brian is guarding the locked atrium door to the Vault 101 entrance together with Officer Richards.

Interactions with the player character[edit | edit source]

Interactions overview[edit | edit source]

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This character is involved in quests.

Quests[edit | edit source]

  • Escape!: Officer O'Brian will attempt to kill the player character during their escape from Vault 101.

Effects of player's actions[edit | edit source]

  • O'Brian and Richards kill Tom and Mary Holden unless the player character is seen by the officers before Tom reaches them. This will cause them to start shooting and scare away Tom and Mary.

Inventory[edit | edit source]

Appearances[edit | edit source]

Officer O'Brian appears only in Fallout 3.

References[edit | edit source]

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