Gong Hyojin: D.O's popularity is really amazing. After my friends found out I was working with him they've all been coming one by one to ask for autographs. I actually have a list for friends who want autographs!
[D.O's character] is a role that only interacts with Jo Insung, so I probably will never have a scene with him until the last episode. It's really unfortunate! I met him for the first time at a cast and crew dinner but as expected, he was sitting far away.
(Source: Gong's interview with EASY magazine, trans@ suncheonboy)