Producer Shin Won Ho of new tvN drama 'Prison Playbook' talked about casting idol actors f(x)'s Krystal and WINNER's Kang Seung Yoon.

At the press conference on November 15, Shin PD revealed, "Honestly, I had low expectations for Kang Seung Yoon. It's been awhile since I saw his acting in 'Highkick' and it's not like he continued acting since then. I forgot about him. I honestly didn't really know WINNER either. But I've heard they became popular with 'Really Really'. Then I met him and when he read the script with the dialect, the character came to life. That's why I cast him. There were no special benefits because he's an idol or from a big agency."

He added, "The same also applies for Krystal."

'Prison Playbook' is a dark comedy drama telling the story of a popular baseball player who becomes a criminal overnight. The first episode will be airing on November 22.