River - Basically the one BAMF to rule them all. 

Professor Song : My old fellah didn’t see that, did he? He gets ever so cross.
Rory : So… what kind of doctor are you?
Professor Song : Archaeology. Love a tomb.

“We’re coming for you I swear. Whatever happens, however hard, however far. We will find you.”
“I’m right here.”
“No, you’re not. And you haven’t been. For a long, long time.”