Tom Selleck, famous for his role as Dr. Richard Burke on Friends, was extremely nervous during his time on the show, lacking experience in sitcoms. However, Jennifer Aniston praised him for his behavior on set and treating others with kindness. In contrast, Aniston had negative feelings towards guest-star Fisher Stevens, who displayed a poor attitude while on the show. Despite Tom's mixed feelings about his time on Friends, he credited Courteney Cox for helping him through it, calling the cast an incredible group of friends.