Through the Waves

Through the Waves is a 2018 South Korea morning soap opera starring Ah Young, Park Jung-wook, Jay Kim, Jang Jae-ho, Seo Ha, Noh Haeng-ha, Kim Jung-heon, and Jung Yoon-hye. It aired on KBS2 from February 12, 2018 to August 31, 2018.

It is the 44th and the final TV Novel series (13th in 2010s) of KBS. It is also the lowest-rated TV Novel series, averaging only 7.4% and hitting a peak of 10.4%, according to AGB Nielsen's nationwide ratings.

Plot
This is a family drama which tells the story of a family of five women who lost their property and became separated after the war.

Main

 * Ah Young as Oh Bok-shil/Oh Se-ra, the only daughter in the Oh household who becomes a singer named Oh Se-ra in order to look for her missing father.
 * Jo Ye-rin as young Oh Bok-shil
 * Park Jung-wook as Han Kyung-ho, Bok-shil's childhood friend and Daeguk Construction employee who realizes his feelings for her.
 * Park Ha-joon as young Han Kyung-ho
 * Jay Kim as Cha Sang-pil, the chief executive officer of Lucky Entertainment and an orphan who becomes insecure of his position in the Hwang household that adopted him.
 * Jang Jae-ho as Oh Jung-hoon, the eldest of the Oh brood who shoulders the burden of being the man of the household and fails in his dreams of becoming a lawyer.
 * Kwon Mi-reu as young Oh Jung-hoon
 * Seo Ha as Uhm Soon-young, Jung-hoon's girlfriend of four years whom he had to abandon to marry a rich woman.
 * Noh Haeng-ha as Hwang Mi-jin, the daughter of construction magnate Hwang Chang-shik whom Jung-hoon marries to get a better chance in life.
 * Lee Yoo-joo as young Hwang Mi-jin
 * Kim Jung-heon as Oh Jung-tae, the second son of the Oh family who could not go to school and could only live a poor and violent life.
 * Lee Hyun-bin as young Oh Jung-tae
 * Jung Yoon-hye as Kim Choon-ja, the Oh siblings' childhood friend and neighbor who insistently clings onto her longtime crush, Jung-tae.

Oh Family

 * Lee Kyung-jin as Lee Ok-boon, the mother of the Oh siblings who lost her husband during the war and was forced to make difficult decisions to survive.
 * Ban Hyo-jung as Hong Ki-jun, the grandmother of the Oh siblings who lives with the guilt of losing her son's riches during the war and plunging their family into poverty.
 * Lee Si-hoo as Oh Jung-woo, the youngest of the Oh siblings whose leg becomes lame in a childhood accident.
 * Jung Hyeon-jun as young Oh Jung-woo

Sohyun-dong Neighbors

 * Kyun Oh-hyun as Han Cheon-sam, Kyung-ho's father who works as a musician for the Golden Carriage Cabaret.
 * Lee Kyung-sil as Yang Mal-soon, Kyung-ho's mother who is a seamstress and holds a tight leash on the household.
 * Jung Sung-ho as Kim Sang-man, Choon-ja's father who works for the government and helps the Oh family settle into the poor Seoul neighborhood of Sohyun-dong.

Daeguk Construction

 * Sunwoo Jae-duk as Hwang Chang-sik, the Chairman of Daeguk Construction whose wealth was secretly built on the stolen riches of the Oh family.
 * Sung Hyun-ah as Cheon Geum-geum, Chang-shik's nosy and haughty wife.

Golden Carriage Cabaret

 * Lee Joo-hyun as Cho Dong-chul, chief executive officer of Golden Carriage Cabaret who runs a gang of thugs and does dirty work for Hwang Chang-shik.
 * Park Seon-young as Gu Mi-shim, Soon-young's aunt who initially opposes her relationship with Jung-hoon.
 * Song Young-jae as Johnny Kim, Han Cheon-sam's musical partner who influences his gambling addiction.
 * Nam Tae-woo as Park Yong-chil, Dong-chul's lackey.

Lucky Entertainment

 * Kim Min-seon as Oh Hae-rin, the daughter of a rich ally of Hwang Chang-shik and Bok-shil's fellow singer trainee who has a crush on Kyung-ho.
 * Seo Jae-won as Heo Jin-gyu, Sang-pil's employee.

Extended

 * Kim Kwang-tae as
 * Lee Jin-mok
 * Jo Hee
 * Kang Jae-eun
 * Lee Yoon-sang
 * Goo Jung-rim
 * Lee Ye-rin

Ratings

 * In this table, 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.