The leader of the guards in Shady Sands, Seth is favored by Aradesh. He organized the guards to protect against raider and radscorpion attacks alike. He regularly went to the radscorpion cave to try and destroy their source, but he was unsuccessful. Also, he once had a relationship with Tandi that was set up by Aradesh, but Tandi claims that he is not her type. Seth, however, still seems to hold some kind of attraction toward Tandi, as he refers to her as his "girl" before catching himself when explaining to the Vault Dweller that she has been kidnapped. After the founding of the New California Republic, Seth would found the New California Rangers. After an expedition with Aradesh to look for Vault 13, Seth and Aradesh would disappear and were proclaimed dead.