[Regulator75]

http://geektyrant.com/news/andy-serk...darth-plagueis

EW went on to point out that there is a lot of speculation that Snoke might end up being Darth Plagueis, who was mentioned in the prequel films, but Serkis confirms that he...

“turns out to be… just Snoke.”

Serkis says that he was aware of the events in the previous films and says that his character is a new addition to the saga. Serkis goes on to explain his character:

“Supreme Leader Snoke is quite an enigmatic character, and strangely vulnerable at the same time as being quite powerful. Obviously he has a huge agenda. He has suffered a lot of damage. As I said, there is a strange vulnerability to him, which belies his true agenda, I suppose.”
More will be revealed regarding this character as the story arc for the new trilogy continues to play out. I’m very curious to know Snoke’s story. I’m sure whatever it is, it will surprise us all, unless the information leaks out early!