River Song Was Married to Voldemort!
I may die!
(Is there such a thing as an awesome but negative fan squee?)
Seriously, maybe I'm behind the times, but I only just now found out that Alex Kingston used to be married to Ralph Fiennes (who played Voldemort.)
I wouldn't have wanted to be their divorce lawyer. (The characters, not the people. There's a potentially awesome fanfic in there for someone who wants to write the story of how River Song's first husband was Voldemort, and what the Doctor might decide to do about that! :D)