The Shondaland honcho found the The Doctor to be the perfect replacement for her Buffy the Vampire Slayer obsession. What is her favorite Doctor Who era? "Probably Russell Davies, because he started it all, and because of David Tennant," she says of the current series. "The introduction of David Tennant as 10 is one of the best written introductions of a character ever. And The Girl in the Fireplace, by Stephen Moffat is, to this day, one of my favorite things. There's just a lot of great episodes that evolved and came about while Davies was there."