Dyueol

Yang Se Jong performed very well for 3 roles as the doctor in the past and 2 clonings in present. I was moved that he is able to show different characteristics and moods for these 3 roles and it is believable that it is 3 different persons. He is very young talented actor in his age.

One of the very best - Duel/Dual has a great, complex story line that doesn't leave you with a ton of plot holes and questions, as well as top-notch acting, particularly from our two leads. Se-Jong Yang is a relative newbie actor but he brings an absolutely brilliant performance as Sung-Hoon/Sung-Joon. I won't spoil anything for potential viewers, but Se-Jong's acting is really a must watch. Don't be turned off by the really bland, weird summary for this show and give it a shot - you won't be disappointed!

Duel is a really mind-blowing series. Everything is a masterpiece. From the story to actors, everything is perfectly made. Nothing can amaze me now after watching Duel. Surely the best kdrama thriller/action/sci-fi I have ever watched.

Never really have a big expectation when it comes to actors and actress. But damn Yang Sejong, He sets a really damn high standard. He is so amazing for playing 3 roles in the series. Real awesome I would say. He nailed every single character he played. He look so attractive in every single scene and the charisma was just really on point. What a drama monster. Just tell him his role, and he'll nail every single of it.

An Awesone Thriller ,Story Concept was fresh & Unique few movies,drama produce at this topic,i never listen about this KDrama( series) even never poop up in any recommendition list, just watched one video at Youtube give it try & was not dissapointed at all direction,script was Solid enough ( only was few Flaws & over the top scenes especially at start police chief beat innocent guy badly & after know the truth that guy he was suspicious was innocent & he not asked him for forgivness i not liked it) but over all was great Acting all by cast especially Jae -yeong jeong( lead) & Se-jong yang ( act three character in one series) Acting was too good,Expectional give it try i sure people will not disappoint

Is a must see drama, very intense thriller. Yang Se Jong is a brilliant actor, he can play any character and be believable.