Actress Jun Ji Hyun imitated Shin Sung Rok.
On the epilogue of SBS Wednesday/Thursday drama "You Who Came from the Stars" broadcast on January 16th, Chun Song Yi (played by Jun Ji Hyun) is confused at the feelings she feels towards Do Min Joon (played by Kim Soo Hyun) and goes to a psychologist to get advice.
Chun Song Yi says to the doctor, "Doctor, can dependence turn into love? Whenever I look at a new bag, I get excited. But it's not like my mouth gets dry if I don't see it. But this, when I don't see him my heart beats and I get nervous when I don't see him. Whenever a woman flirts with him, I want to break her wrist. What is this??"
At this, Chun Song Yi was playing with a ring on her finger and made a mysterious laugh. This is the ring that Lee Jae Kyung (played by Shin Sung Rok) playing the role of a sociopath did whenever he wanted to kill someone.
At this, viewers laughed at the little things she was imitating of Shin Sung Rok.