Benny is Anna's twin brother who lives in Philadelphia and works as a schoolteacher. He tries to maintain family harmony while navigating his own personal dilemmas.

Christopher is Benny's boyfriend who works in finance and joins the family for a vacation. His focus on status and reluctance to engage with local culture cause tension during the trip.

Nicole is Anna and Benny’s sister, a married mother of two daughters, who is very organized and controlling. She struggles with personal dissatisfaction and competes with Anna.

Caterina is a ghost from the 16th century, haunting the villa where the family stays during their vacation. Her presence serves as a catalyst for the supernatural events in the story.

Anna’s parents are a wealthy couple from the Midwest who enjoy taking family vacations. They are preoccupied with appearances and struggle to face the realities of their family dynamics.