Controversial from the beginning, River Song made a huge impact on Doctor Who when she first appeared in Series 4's two-part story, «Silence in the Library» and «Forest of the Dead.» From the beginning, her character was a mystery, appearing to know The Doctor despite him not having met her previously. As her story developed, even more surprises about her character came out.
An assassin, a thief, an archeologist, and a human with Time Lord DNA, the mystery of River Song spread across seasons and different incarnations of The Doctor. Her story was cyclical, with her beginning also being the end of her story, and the show eventually caught up with her timeline. With her character being dead in the show, will River Song ever make a return to the TARDIS?
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River Song, played by Alex Kingston, and also known as Melody Pond and the Doctor's Wife, first appeared in Series 4 of the Doctor Who revival. Episode 8 of the series began the two-part story «Silence in the Library» / «Forest of the Dead,» in which the Tenth Doctor and Donna Noble land on a 51st-century library planet that has been long abandoned. There, they team up with a group of archeologists to discover just what happened to cause the abandonment of the building. That group of archeologists is headed by Professor River Song.
In the episode, the shadows in the library have become home to the Vashta Nerada, flesh-eating creatures that use shadows to hunt their prey. When River and her team arrive at the library, it's clear that she knows The Doctor, even though he doesn't seem to know her. Due to the pair's time travel-based relationship, from the Doctor's perspective, they have never met, while for
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