Frank is Tony’s youngest brother, and one of the cutest little boys Eilis has ever seen. Despite his appearance, though, Frank is quite devilish, which is why Tony warns Eilis that he might say something rude when she first meets his family. Sure enough, Frank tells her that he and his family don’t like Irish people, at which point his parents and brothers tell him to be quiet. However, Eilis manages to endear herself to Frank, who appreciates her willingness to pay attention to him.