America's favorite serial killer is coming back after an unbelievable Season 2 and the new season of Dexter promises to be even better than the first two. Jimmy Smits joins the cast as ADA Miguel Prado who comes to town after one of Dex's "soon-to-be blood slide" victims may or may not be one of the bad guys (remember Dexter only kills other killers). Check out the Season 3 trailer that just debuted at Comic Con!