Answer: Rachel
Claire (Rachel McAdams), Gloria (Isla Fisher), and Christina (Jenny Alden) are the three Cleary sisters. Gloria is the obsessive redhead who clings to Jeremy, Christina is the one getting married (and we do not see her again until Gloria and Jeremy's wedding), and Claire is the desire of John. The other major members of the Cleary family are the sexually frustrated mother Kathleen (Jane Seymour), anti-social son Todd (Keir O'Donnell), and bigoted grandmother Mary (Ellen Albertini Dow).