Plot: In part 1, While digging for clues, Woo Jin finds a picture of Professor Han and his dad standing in front of Eunsung Psychiatric Hospital. In part 2, Beom Gyun meets Dong Geon
Cast
Yeo Jin-gooKim Woo-JinYeo Jin-goo was 19 in Circle - Season 1 - The Chairman (Episode 6).
Birthday: Wed, Aug 13 1997
Kim Kang-wooKim Joon-HyukKim Kang-woo was 38 in Circle - Season 1 - The Chairman (Episode 6).
Birthday: Tue, Jul 11 1978
Gong Seung-yeonHan Jung-YeonGong Seung-yeon was 24 in Circle - Season 1 - The Chairman (Episode 6).
Birthday: Sat, Feb 27 1993
Lee Gi-kwangLee Ho-SooLee Gi-kwang was 27 in Circle - Season 1 - The Chairman (Episode 6).
Birthday: Fri, Mar 30 1990
Kwon Hyuk-sooDetective OhKwon Hyuk-soo was 31 in Circle - Season 1 - The Chairman (Episode 6).
Birthday: Tue, May 06 1986
An Woo-yeonKim Beom-GyoonAn Woo-yeon was 26 in Circle - Season 1 - The Chairman (Episode 6).
Birthday: Mon, Jan 07 1991
Kim Joong-kiKim Kyu-CheolKim Joong-ki was 37 in Circle - Season 1 - The Chairman (Episode 6).
Birthday: Sun, Jul 22 1979
Min Sung-wookLee Hyun-SeokMin Sung-wook was 37 in Circle - Season 1 - The Chairman (Episode 6).
Birthday: Sat, Sep 22 1979
Nam Myung-ryeolYoon Hak-JooNam Myung-ryeol was 58 in Circle - Season 1 - The Chairman (Episode 6).
Birthday: Thu, May 14 1959
Lee Hwa-KyumSecretary ShinLee Hwa-Kyum was 22 in Circle - Season 1 - The Chairman (Episode 6).
Birthday: Mon, Jan 23 1995
Seo Hyeon-cheolHong Jin-HongSeo Hyeon-cheol was 52 in Circle - Season 1 - The Chairman (Episode 6).
Birthday: Mon, Apr 19 1965
Song Young-gyuHwang Yong-WooSong Young-gyu was 47 in Circle - Season 1 - The Chairman (Episode 6).
Birthday: Sat, Apr 18 1970
Oh Eui-sikLee Dong-SooOh Eui-sik was 33 in Circle - Season 1 - The Chairman (Episode 6).
Birthday: Tue, Nov 01 1983
Kim Ye-joonKim Bum-gyun (young)Kim Ye-joon was 10 in Circle - Season 1 - The Chairman (Episode 6).
Birthday: Sat, Apr 28 2007
Jung Ji-hoonKim Woo-jin (young)Jung Ji-hoon was 10 in Circle - Season 1 - The Chairman (Episode 6).
Birthday: Thu, May 31 2007
Jung In-sunPark Min-youngJung In-sun was 26 in Circle - Season 1 - The Chairman (Episode 6).
Birthday: Thu, Apr 25 1991