If you're surprised by McDermott's age, you might also be shocked to learn that Modern Family's fresh-faced Sarah Hyland is almost 23. Or that Revenge's boyish Gabriel Mann is 40!
Photos: Everybody's posing nude! Check out Rihanna and other stars who've bared all
To see more stars who do not look their age, click here. Plus: Tell us if we left anyone out below!
- Arts & Entertainment