Cast Credits I'm Sorry Kang Nam Goo (2016) Starring as Jung Mo Ah Pied Piper (2016) Guest starring as Joo Eun Episode 1x01: Episode 1 (Mar 7, 2016) Rosy Lovers (2014) Starring as Baek So Ryun Good Doctor (2013) Starring as Yoo Chae Kyung Case Number 113 (2013) Starring as Seung Joo Moon Embracing the Sun (2012) Starring as Yoon Bo Kyung Baby-faced Beauty (2011) Starring as Kang Yoon Seo