Episode 4 S01 E04

Yang Jin-sung (as Na Doo Rim / Jang Yi Kyung / Boon Yi) Lee Hong-gi (as Choi Kang Ju) Sung Hyuk (as Jang Yi Hyun) Jang Ah-young (as Lee Roo Mi) Shin Eun-jung (as Ma Jae Ran) Choi Il-hwa (as Choi Il Do) Kim Seo-ra (as Kim Myung Hee) Nam Jung-hee (as Park Sun Bok) Park Jin-joo (as Oh Jin Ju) Kang Pil-sun-I (as Secretary Kim) Jung Hae-in (as Choi Kang In) Kim Yoo-jung (as Leeann) Im Byeong-gi (as Butler Jang) Kwon Eun-ah (as Ahn Dong Daek) Kim Ah-young (as Sung Joo Sin / Byul) Park Jeong-hak (as Shaman) Heo Sung-tae (as Mr. Park) Kim Yeong-ok (as Kang Ju's aunt) Kim Mi-kyeong (as Kang Ju's great-grandmother)