Guest Stars Park Ji Hwan as Goo Gap Pyung Soo Hyun as Yukiko Maeda Kim Hae Sook as Mrs. Nawol Ok Ja Yun as Na Young Chun Wi Ha Joon as Kwon Jun Taek Ahn Ji Ho as Bum Oh Bae Hyun Sung as Seung Jo Lee Moo Saeng as Kuroko 01 Lee Sung Wook as Yuh Myung Joon Han Dong Hee as Noh Ji Soo Kim Kang Min as Kuroko 04 Nam Myung Ryul as Mr. Heo Park Hye Jin as Antenna 1 Im Ki Hong as Mr. Wang Heo Joon Suk as Kwon Yong Gil Jun Kwang Jin as Mr. Park Park Sung Geun as Shin Ji Oh Son Sook as Lady Maeda Lee Suk as Researcher Park Tae In as Ahn Jong Hyuk Min Sang Chul as Photographer Shin Soo Hyun as Nurse