Guest Stars Kim Joong Ki as Park Joong Ki Son Eun Seo as Park Eun Soo Lee Hae Young as Jang Kyung Hak Baek Sung Hyun as Shim Dae Shik Yesung as Oh Hyun Ho Kim Jae Wook as Mo Tae Goo Kwon Hyung Joon as Chun Sang Pil Jo Young Jin as Bae Byung Gon Kim Roe Ha as Nam Sang Tae Lee Do Kyung as Mo Ki Bum Kim Yong Woon as Ji Choon Bae Oh Yun Ah as Heo Ji Hye Park Noh Shik as Park Jong Woo Son Jong Hak as Kang Gook Hwan