Grace's Secret is the 5th episode of the tenth season and 215th overall which was aired from NBC on November 1, 2018.
Grace takes a road trip with her dad to Schenectady, where she tells him about her #MeToo story that involved a "family friend". Meanwhile, Will and Karen engage in a lip-sync battle to decide who will be Jack's best man.
- Eric McCormack (Will Truman)
- Debra Messing (Grace Adler)
- Megan Mullally (Karen Walker)
- Sean Hayes (Jack McFarland)
- Robert Klein (Martin Adler)
- Clinton Leupp (Miss Coco Peru)
- Martha Kelly (Patty)
- Inscribed on the crypt for Bobbi Adler are the dates "1932-2016". These are the same birth and death dates for actress Debbie Reynolds, who portrayed Bobbi Adler is this series.