McCormack, who played Will Truman on the acclaimed NBC sitcom, exclusively opened up to PEOPLE about how he and Hayes, who won an Emmy for portraying Jack McFarland, returned to their friendship.

The other man is Sean Hayes. For 11 seasons, he played the hilariously self-absorbed Jack McFarland on "Will & Grace," the first sitcom with openly-gay main characters. This week, a new play ...