A certain handsome Grey's Anatomy star will be interviewed by the iconic Barbara Walters tomorrow evening as one of 2006's most fascinating figures.

Walters, as has been her custom, is keeping the identity of one of her "10 Most Fascinating People" to herself and will reveal it to the world on the show, which airs Tuesday night on ABC.

Here's the remainder of this year's list:

1. Andre Agassi: Retired tennis great
2. Sacha Baron Cohen: Offensive interferer
3. Patrick Dempsey: Had a McDreamy year
4. Terri Irwin: Stood tall in a time of grief
5. Jay-Z: His Kingdom came
6. Angelina Jolie and Brad Pitt: Hollywood It Couple
7. Joel Osteen: His ministry soared
8. John Ramsey: Reluctantly, in the news
9. Anna Wintour: Inspired a devil of a film.

Steve Marsi is the Managing Editor of TV Fanatic. Follow him on Google+ or email him here.