It seems that Kim Soo Hyun played a part in convincing his "You From The Stars" co-star Jun Ji Hyun to accept her role in the drama.
In an episode of the talk show "Brave Brothers", a guest talked about Jun Ji Hyun's casting story in her latest drama. He said, "Jun Ji Hyun, the female lead in the drama "You From The Stars", initially rejected her casting offer."
On the reason why she rejected, the guest said, "She was already receiving a lot of movie and drama casting offers, especially after her participation in "The Thieves" and "Berlin Files". When she received the offer for "You From The Stars", she was already in the middle of negotiation for a new movie."
Still, the production company felt that Jun Ji Hyun was the only one who would fit the role of the Hallyu actress Chun Song Yi, so they enlisted the help of Kim Soo Hyun to convince his co-star.
According to representatives, "Kim Soo Hyun worked with Jun Ji Hyun in the movie "The Thieves", so he contacted her personally, and he was able to convince her to accept the casting offer for the drama."
Catch Jun Ji Hyun and Kim Soo Hyun in "You From The Stars" every Wednesdays and Thursdays on SBS.