Guest Stars Jun Sung Woo as Young Pil Yong Lee Won Geun as Hamburger Place Employee Choi Kang Hee as Kim Yang Hee Kim Joo Hun as Kim Hyung Suk Go Joon as Lee Pil Yong Gil Hae Yun as Pil Yong's Mother Park Se Wan as Young Yang Hee Kim Min Sang as Yang Hee's Father