S2, E4: Grace (Debra Messing), who is usually irritated by her well-meaning but meddling mother (guest star Debbie Reynolds), gets jealous when her mom starts to dote on Will (Eric McCormack). Meanwhile, Jack (Sean Hayes), Karen (Megan Mullally) and Rosario (guest star Shelley Morrison) have an interesting visit with an I.N.S. officer (guest star Cameron Watson).