Siobhan is Kevin’s nanny for about a year when he is an infant. Siobhan is a diligent caretaker, and she becomes a friend to Eva and Franklin. Eventually, Siobhan becomes fed up with Kevin—he pulls her hair and hurts her intentionally, and he screams inconsolably all day long. She quits as Kevin’s nanny, and Eva gives Siobhan a job at her travel company.