Will & Grace s10e15 – Bad Blood
After Grace’s (Debra Messing) dad, Martin (guest star Robert Klein), is rushed to the hospital with a bleeding ulcer, Grace is shocked when he refuses to take Will’s (Eric McCormack) blood for a transfusion. When Will’s mom, Marilyn (guest star Blythe Danner), finds out, she uncharacteristically takes Martin to task. Karen’s (Megan Mullally) demands for Jack’s (Sean Hayes) wedding, along with upstaging him during his one-man show, cause Jack to uninvite Karen from his wedding.
Will & Grace takes place in New York City and focuses on Will Truman, a gay man and lawyer, and his best friend Grace Adler, a Jewish woman who runs her own interior design firm. Also featured are their friends Karen Walker, a rich socialite, and Jack McFarland, a struggling actor/singer/dancer who also has had brief careers as an acting teacher, back-up dancer, cater-waiter, talk-show host and student nurse.