Jennifer Gareis Visits 'The Young and the Restless' on August 19

As teased in this week's The Young and the Restless promo and confirmed in the preview at the end of Monday's episode, Jennifer Gareis (now Donna on The Bold and the Beautiful) is back as Grace Turner on Tuesday, August 19. Will Grace give Nick the information he's been looking for regarding Mariah, and why she looks just like his dead adopted daughter, Cassie?

Watch a preview of Tuesday's episode below: