Actors still needed with CGI - Benedict Cumberbatch creating Smaug

I don't know how this is my first time seeing this, but it's pretty awesome. I remember when CGI was new and everyone spoke about actors being obsolete one day. This shows how an actor is still very much needed. Between movies like The Hobbit: The Desolation of Smaug and tons of video games, the actor is still helping, and arguably needed to create the character.