Watch: Yoon Shi Yoon Jokes That “Psychopath Diary” Cast Isn’t Following The Script In Fun Behind-The-Scenes Video

tvN’s Wednesday-Thursday drama “Psychopath Diary” has released a new behind-the-scenes video!

The series is about a man named Yook Dong Shik (played by Yoon Shi Yoon) who loses his memory after getting into an accident while running away from a murder scene. When the murderer’s diary, which contains the details of his crimes, falls into Yook Dong Shik’s hands, he begins to mistakenly believe that he is a psychopathic serial killer.

The new video starts off with the actors gathering at the busy filming set. Despite the hectic setting, the actors happily chat with each other and playfully pose for the camera in a friendly atmosphere.

In an attempt to do something interesting for the camera, Park Sung Hoon clears his throat and steps forward into the crowded room. The actress spots the camera and asks, “What’s this?” She then introduces her character Jo Yoo Jin, explaining that she is the head of the inspection team and has a cold personality.

Kim Ki Doo, who is in charge of filming the behind-the-scenes footage at the moment, jokes, “Everyone thinks this is for my own personal broadcast. This is not my personal broadcast. I’m just showing how hard we’re working.”

After a take, Choi Tae Hwan introduces himself by saying, “I’m Shin Seok Hyun, the colleague of the clueless Dong Shik.” Kim Ki Doo abruptly asks him about his height, and laughing, he answers, “I’m 183 centimeters [approximately 6 feet].”

In the next scene, Kim Ki Doo asks Jo Shi Nae about her role, and she quickly replies, “I’m Han Jeong Ah, who’s in charge of beauty.” He asks her about the atmosphere of the film set, and she replies, “It’s amazing, so great. It’s psychotic… everyone is like a psycho…” Flustered by her own answer, she bursts out laughing and admits, “I don’t know. I don’t know what to say.” She jokingly adds, “Every single one of us is like a psycho.”

During another break, Choi Dae Chul, who plays the role of harsh boss Gong Chan Seok, jokes, “I’m Dong Shik’s boss, who really loves him.” Then, after ending his interview with a warm vow to do his best and a grateful message to the viewers, he jokingly pushes Kim Ki Doo aside and tells him to go away.

At the end of the video, Yoon Shi Yoon makes his co-stars laugh in surprise by confessing, “I don’t know how our drama’s making-of video will turn out, but these people aren’t following the script. We’re in big trouble. I think the writer will enjoy watching this the most.”

Watch the full clip below!

“Psychopath Diary” airs on Wednesdays and Thursdays at 9:30 p.m. KST.

Watch the latest episode of “Psychopath Diary” now!

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