When asked about how he felt when he first received the casting offer, Lee Do Hyun shared that his agency told him, “Kim Eun Sook writer contacted you. Would you dare to take on the role?”
Feeling nervous, he decided to meet with the writer. Fortunately, Kim Eun Sook provided him with words of encouragement, saying, “Even if we fail, it’s better to fail together in my work than to go somewhere else and fail.” Her words gave him the confidence to take on the role.
In addition to their initial meeting, Lee Do Hyun and Kim Eun Sook developed a close relationship in a short amount of time. He even shared that Kim Eun Sook had spoken to his mother over the phone, as they were of similar age.
Lee Do Hyun expressed his gratitude towards his co-star Song Hye Kyo stating that he felt pressure not to let her down, but that she was so talented that he felt he didn’t have to do much acting in their scenes together.
Source: Nate.