The Daily Beast: How would you stack up Amy Pond against her most recent predecessors, i.e., Rose Tyler, Martha Jones, and Donna Noble? Did you set out to make her a reaction to any of the Doctor’s most recent companions?
Steven Moffat: I don’t think you can, because she’s a…
Bad girl when The Doctor says it = endearing, bad girl when Moffat repeatedly says it as though it actually means anything = vaguely unsettling. Also, if you really want a “bad girl in the TARDIS,” I think all the previous female companions, especially Donna, fit that role quite nicely whilst still managing to not lose their personality due to poor writing.