Theresa (Fallout)

Theresa is a resident of Vault 13 in 2161.

Background
She is the leader of the rebel faction in Vault 13. The rebels are concerned about the health of the members in the vault and think that the Overseer is purposely hiding information from the vault dwellers.

It also stands to reason that she was with the group who leaves Vault 13 and goes with the Vault Dweller to found Arroyo, given her eagerness to explore the outside world.

Other interactions
If the player talks to her and convinces her that the Overseer is correct, the rebel faction will disperse, thus giving you 750 XP.

The player can also offer her advice by telling her about Shady Sands and suggesting that it would be a good place to go first once they were out of the vault. Theresa would be grateful for your advice and support, but nothing comes of it. There is no experience for giving advice, and she never leaves the vault in-game.

Appearances
Theresa appears only in Fallout but is also mentioned in Fallout Bible.