In this week's episode of Getting Lost, we dissect the man of mystery, Richard Alpert, with the help of the actor who plays him, Nestor Carbonell. Carbonell sat down with TVGuide.com to discuss the upcoming Richard-centric episode, where we will find out where he came from and why he doesn't age. Plus: Can we trust the Man in Black?

Thirteen clues about the end of Lost: Does Ilana age? Who's coming back? Who isn't?

Check out the interview below and be sure to email your burning questions to getting_lost@tvguide.com.