As my spouse and I work our way through our list of KDramas, we've had fun watching (sometimes struggling to understand) the English speaking scenes. But Kim Ji-won's performance in Queen of Tears has been impressive. Crystal clear, way to go!
It's interesting how in previous shows, actors will memorize English lines. They're technically correct, but stress the wrong syllables making it difficult to understand. That's probably how my Korean might sound to them.
In other news, still no American actors that are really American. It'll happen!