Lillian is a 1950s suburban housewife who is fiercely curious about the new family next door. She maintains a meticulously clean home and pays close attention to neighborhood appearances. Her desire to uncover information about her secretive neighbors drives her to orchestrate a joint family trip to Murphy's Park.

George is a conventional suburban husband who initially ignores his wife's fixation on their new neighbors. He prefers to relax at home rather than engage in local gossip. As he interacts more with the man next door, he develops his own insecurities regarding wealth and social expectations.

The Sakkaros are the wealthy, pleasant, and highly secretive new family living next door to the Wrights. Composed of a husband, wife, and son, they keep to themselves and avoid sharing any details regarding their origins or professions. They maintain an immaculate house and display a profound, almost phobic obsession with monitoring the weather.

Tommie is the young son of George and Lillian, acting as a standard representation of an American child in the 1950s. He operates as a conduit for information, bringing his parents rumors about the neighbors relocating from Arizona. His presence allows his mother to justify a trip to the local amusement park under the guise of arranging a playdate.