Age: 25 Position: Head of Security Shannon is passionate about her job and takes it very seriously. She can be quick to judge and give her opinion, at times, but can also be quick to try to make amends. She is rough, tough, pigheaded, and fiercely loyal to the Overseer. She has a hidden desire for Guest that she tries not to display.

Age: 23 Position: Vault Administrator As vault administrator, she is the overseer's right hand, ensuring all of his orders and directives are carried out and followed. She's almost always close by to the Overseer and usually has her clipboard and pen ready to take notes. She is sweet, kind, loving, and loyal, but because of her unquestionable loyalty to Guest and her desire to please him in any way possible, is also naive and very easy for him to persuade. She highly desires Guest and can get jealous when he shows others affection, though she does not let this show.

Age: 30 Position: Vault Physician As the only trained and licensed doctor in the vault, she became the vault's physician by default. She works well under pressure, is highly organized, and will work herself to the bone until everyone's needs are taken care of. She has high hopes for the Overseer, but is a person that doesn't believe something until she sees it. Her life is based on experiments and evidence, requiring Guest to prove his value before she can give him her loyalty.

Age: 35 Position: Vault Resident Zoe is a resident who absolutely loves the dynamic of the vault. Though she's fairly thick in body size, she makes up for it in other areas. She is highly flirtatious with all men, especially Guest, and willing to do about anything at anytime. Regularly brings "concerns" to the Overseer for the sole purpose of being alone with him.