Which JYP artist turned down the offer to Kim Soo Hyun's role in 'Dream High'?

J.Y. Park revealed that he had a different actor in mind for Kim Soo Hyun's role in KBS drama 'Dream High'!

On the May 11 airing of 'Radio Star', J.Y. Park shared the behind story of the drama he wrote, saying he actually wantedG.Soul to play the male lead. 

J.Y. Park explained, "I thought it would be better for G.Soul to gain success with 'Dream High' and then go over to the U.S again, but I think he was hesitant about it because I was the one who wrote it." G.Soul responded, "I denied it because I was preparing to debut as a singer, not an actor." 

During that time period, G.Soul was preparing to debut in the U.S, but failed do so because of various difficulties. In fact, he was one of JYPE's longest trainee. Fortunately, he is now gaining success with his vocal talent.

Can you imagine G.Soul in 'Dream High'?