NBC | 9:00 pm
Will (Eric McCormack) has decidedly mixed emotions about attending the nuptials of his ex (guest star Bobby Cannavale, reprising his Emmy-winning portrayal from the original incarnation of the series) in the new episode "The Wedding." Also present for the event, Grace (Debra Messing) tries to keep Will from doing anything he may regret later. Jack’s (Sean Hayes) date for the occasion has some surprises in store. Megan Mullally also stars.