See How They Created The Star Wars Rogue One CGI Characters [VIDEO]
There were some CGI characters in Rogue One that in my opinion, turned out to be the best we've seen yet. They deemed it necessary for the story line to do this, and by watching the video you'll see just how hard it was. SPOILERS AHEAD!
The two obvious CGI characters were Tarkin & Leia. I agree with this video that Leia looked better, but Tarkin was pretty close too. And, I didn't even realize it was CGI for fighter pilots gold leader and red leader. Very cool!