The Old Maid of Honor

S4 E21: Christine's plan to prove that she's comfortable with Richard's remarriage backfires when the date she's supposedly "in love with," Todd (recurring guest star LEE TERGESEN - "Oz," "Wanted"), acts obnoxiously at the rehearsal dinner. Plus, Matthew hooks up with New Christine's sister, Amy (recurring guest star CONSTANCE ZIMMER - "Entourage," "Boston Legal").