Once Again (South Korean TV series)

Once Again is a 2020 South Korean family drama television series starring Lee Sang-yeob and Lee Min-jung. The drama aired on KBS2 from March 28 to September 13, 2020, every Saturday and Sunday from 19:55 to 21:15 (KST).

Synopsis
Song Young-dal (Cheon Ho-jin) and Jang Ok-boon (Cha Hwa-yeon) have been married for many years and they have four children (a son and three daughters): Joon-sun (Oh Dae-hwan), Ga-hee (Oh Yoon-ah), Na-hee (Lee Min-jung) and Da-hee (Lee Cho-hee).

Third child Na-Hee is a doctor and she works with her husband Doctor Yoon Gyu-jin (Lee Sang-yeob) at the same hospital. They fell in love during their medical school days and got married, but their marriage life is not doing very well. Meanwhile, the first child Joon-sun (Oh Dae-hwan) and the second child Ga-hee (Oh Yoon-ah) are both divorcees and live with their parents. The youngest child Da-Hee struggles as an intern at a company.

Main

 * Chun Ho-jin as Song Young-dal
 * Cha Hwa-yeon as Jang Ok-boon
 * Lee Min-jung as Song Na-hee — Young-dal and Ok-boon's third child, a pediatrician.
 * Lee Sang-yeob as Yoon Gyu-jin — Na-hee's husband, an internist.

Supporting

 * Oh Dae-hwan as Song Joon-sun — Young-dal and Ok-boon's eldest child.
 * Oh Yoon-ah as Song Ga-hee — Young-dal and Ok-boon's second child.
 * Lee Cho-hee as Song Da-hee — Young-dal and Ok-boon's youngest child.
 * Moon Woo-jin as Kim Ji-hoon — Ga-hee's son.

Yoon Gyu-jin's family

 * Sung Chan-ho as Gyu-jin and Jae-seok's deceased father, only appears in their family photo.
 * Kim Bo-yeon as Choi Yoon-jung — Gyu-jin and Jae-seok's mother.
 * Lee Sang-yi as Yoon Jae-seok — Gyu-jin's younger brother, Da-hee's love interest, later her husband.

Yongju Market

 * Lee Jung-eun as Kang Cho-yeon — Sister's Kimbap store owner. Young-dal's long-lost younger sister, Song Young-sook.
 * Baek Ji-won as Jang Ok-ja — Ok-boon's unmarried younger sister.
 * Ahn Gil-kang as Yang Chi-soo — Young-dal's friend.
 * Ki Do-hoon as Park Hyo-shin — Song's family fried chicken restaurant part-time delivery man, later became a stuntman for Joon-sun's action company. Ga-hee's love interest.
 * Kim So-ra as Lee Joo-ri — Sister's Kimbap store worker.
 * Song Da-eun as Kim Ga-yeon — Sister's Kimbap store worker.
 * Shin Mi-young as Park Kyung-hwa — Dried fish store owner.
 * Kim Ga-young as Im Jin-joo — Twisted donut store owner.

Family of Joon-sun

 * Im Jung-eun as Sung Hyun-kyung — Joon-sun's wife.
 * Lee Ga-yeon as Song Seo-young — Joon-sun's eldest daughter.
 * Ahn Seo-yeon as Song Seo-jin — Joon-sun's younger daughter.

Members of Evergreen Children's Hospital

 * Alex Chu as Lee Jeong-rok — Na-hee's medical school senior.
 * Son Seong-yoon as Yoo Bo-young — Gyu-jin's first love.
 * Song Min-jae as Yoo Shi-hoo — Bo-young's son.
 * Shin Soo-jung as Park Ji-yeon
 * Kang Yoo-seok as Han Gi-young
 * Kim Hyun-mok as Hong Sung-woo
 * Kim Mi-eun as Shin Hye-jung
 * Lee Sang-kyung as Shim Jung-hee
 * Han Bom as Oh Yeon-ji

Others

 * Oh Eui-shik as Oh Jung-bong — Joon-sun's action junior, a stuntman.
 * Jang Won-hyuk as Lee Jong-soo — Joon-sun's action junior, a stuntman.
 * Bae Ho-geun as Kim Seung-hyun — Ga-hee's ex-husband.
 * Heo Hyun-ho as Monk Yong Kang — Monk who is a father figure to Cho-yeon.
 * Kim Hye-won as Kwon Ji-hye — Ga-hee's store manager.
 * Jung Han-bit as Seo Yoon-hee — Jae-seok's blind date.
 * Jo Mi-ryung as Hong Yeon-hong — Cho-yeon's friend, a schemer and troublemaker.
 * Nam Jung-hee as Shim Moon-sil — Yeon-hong's mother.

Special appearances

 * Ji Il-joo as Cha Young-hoon — Da-hee's ex-fiancé.
 * Son Jong-hak as Jang Choong-soo — Evergreen Children Hospital's director.
 * Lee Sung-kyung as Ji Sun-kyung — Jae-seok's ex-girlfriend.
 * Kang Chan-hee as Choi Ji-won — Da-hee's friend from college.
 * Jo Han-chul as Jo Won-chul — Loan shark that harasses Yeon-hong for her debts.
 * Lee Pil-mo as Lee Hyun — Hyun Media CEO, film director for Yongju Market's promotional video.

Viewership

 * In this table, the blue numbers represent the lowest ratings and the red numbers represent the highest ratings.
 * N/A denotes that the rating is not known.
 * The 48th episode of the series aired on September 6, 2020, logged a national average viewership of 37.0% with 6.8 million viewers watching the episode.