Children of the 20th Century

Children of the 20th Century is a 2017 South Korean television series starring Han Ye-seul and Kim Ji-suk with Lee Sang-woo, Ryu Hyun-kyung and Lee Sang-hee. The series aired on Mondays and Tuesdays at 22:00 (KST), from October 9 to November 28, 2017.

Synopsis
The story follows three women in their mid-thirties as they navigate their love lives, friendships, and familial ties.

Main

 * Han Ye-seul as Sa Jin-jin
 * Kang Mi-na as young Sa Jin-jin
 * An idol turned actress adored by many. Despite her good looks and fame, she has not dated before.


 * Kim Ji-suk as Gong Ji-won
 * Kim In-seong as young Gong Ji-won
 * An investment banker with a Harvard MBA, and a background in Wall Street. He is innocent in love and remains loyal to his first love.


 * Lee Sang-woo as Anthony / Lee Chul-min
 * Park Seo-ham as young Anthony
 * A former boy band member of Boys Be Ambitious, and Sa Jin-jin's crush since they were young. He is also Ji-won's stepbrother.


 * Ryu Hyun-kyung as Han A-reum
 * Song Soo-hyun as young Han A-reum
 * A flight attendant who is constantly on a diet that takes the initiative to ask guys out.


 * Lee Sang-hee as Jang Young-shim
 * Han Ji-won as young Jang Young-shim
 * A lawyer who has had perfect grades since she was young.


 * Ahn Se-ha as Jung Woo-sung
 * Kwon Do-kyun as young Jung Woo-sung
 * A gynecologist. He was handsome when he was young, but his looks drastically changed after he grew older. He attended the same school as the Four Bongos.


 * Oh Sang-jin as Kang Kyung-suk
 * A highly principled lawyer who doesn't care for money or glory. Young-shim's boss.

People around Jin-jin

 * Kim Chang-wan as Sa Chang-wan, Jin-jin's father
 * Kim Mi-kyung as Kim Mi-kyung, Jin-jin's mother
 * Shin Won-ho as Sa Min-ho, Jin-jin's younger brother
 * Kim Jung-hwa as Sa Ho-sung / Lee Su-hyun, Jin-jin's older sister

Chamjin Entertainment

 * Kim Kwang-shik as Jang Gi-bong, Jin-jin's manager
 * Lee Jae-kyoon as Lee Hong-hee, Jin-jin's road manager
 * Lee Yoo-mi as Mi-dal (Cho Mi-hyun), Jin-jin's stylist

People around Ji-won

 * Kim Tae-hoon as Lee Seung-goo, Ji-won's step father
 * Kim Young-sun as Lee Gwang-hee, Ji-won's mother
 * Shin Se-hwi as Lee Ha-ram, Ji-won's half-sister
 * Jung Jae-ho as Kim Tae-hyun, Ji-won's assistant

People around A-reum

 * Choi Beom-ho as Han Hak-gyu, A-reum's father
 * Yoon Bok-in as Yoon Bok-in, A-reum's mother
 * Jang Hee-ryung as Jang Ji-hye, A-reum's colleague
 * Lee Chang-yeob as Lee Dong-hoon, a co-pilot that A-reum had a crush on

People around Young-shim

 * Kim Yik-tae as Jang Jang-soo, Young-shim's father
 * Park Myung-shin as Kim Young-ja, Young-shim's mother

Others

 * Shin Dong-mi as Choi Jung-eun, Anthony's manager
 * Shin Dong-hoon as Reporter Jung
 * Jo Hyun-sik as Driver

Special appearance

 * Han Sun-hwa as Jung Da-young
 * Golden Child as Idol group 'Master'
 * Heo Ji-woong as Variety Show Host
 * Shim Hyung-tak as Terius / Jung Chang-hoon
 * KNK as Idol group 'Boys Be Ambitious' (young age)
 * Kim So-yeon as Director

Production

 * The drama's working title was No Sex and the City. It is the debut of Lee Sun-hye as a main writer, as she was a junior writer for tvN's Reply series. Directing the series was Lee Dong-yoon (Fated To Love You, The Queen's Classroom, Happy Home).
 * Due to a strike at MBC, the series did not air on September 25, 2017 as originally planned.

Ratings

 * In the table below, the blue numbers represent the lowest ratings and the red numbers represent the highest ratings.
 * NR denotes that the drama did not rank in the top 20 daily programs on that date.