Episode 1 S01 E01

Zo In-sung (as Jang Jae Yeol) Gong Hyo-jin (as Ji Hae Soo) Sung Dong-il (as Jo Dong Min) Lee Kwang-soo (as Park Soo Gwang) Jin Kyung (as Lee Young Jin) Lee Sung-kyoung (as Oh Son Yeo) Doh Kyung-soo (as Han Gang Woo) Yang Ik-june (as Jang Jae Beom) Cha Hwa-yeon (as Jang Ok Ja) Sung Yu-been (as Jang Jae Yeol (Young)) No Tae-yeob (as Jang Jae Beom (Young)) Kim Mi-kyeong (as Hae Soo's mother) Choi Moon-kyoung (as Ji Yoon Soo) Choi Seung-kyung (as Oh Do Deuk) Tae Hang-ho (as Yang Tae Yong) Lee Dong-ha (as Yoon Cheol) Jung Ji-hyeon (as Hye Jin) Han Jeong-hyeon (as Editor Bae) Do Sang-woo (as Choi Ho) Ha Yeon-joo (as Hyeon Joo) Park Soo-young (as Dr. Im) Moon Ji-in (as Lee Min Young)

schizophrenia trauma friendship romance author psychiatry mental health best selling author medical drama radio dj housemates cohabitation