Though he bears some resemblance to C-3PO, K-2SO is apparently quite different in personality.
The signs look good for Rogue One though and its droid helper K-2SO.
The Star Wars universe’s CGI/practical effects sidekicks range from the iconic (C-3PO and R2-D2) to the promising (BB-8) and the loathed (Jar-Jar Binks).
Rogue One was given a verdict by perhaps the most important reviewer of all today, George Lucas.