A Pledge to God

A Pledge to God  is a South Korean television series starring Han Chae-young, Bae Soo-bin, Oh Yoon-ah and Lee Chun-hee. The series aired four episodes every Saturday on MBC TV from 20:45 to 23:10 (KST), from November 24, 2018 to February 16, 2019.

Synopsis
Little Hyeon Woo is gravely ill and needs a bone marrow transplant. His current parents are not compatible donors. His doctor advises his parents that the cord blood of a sibling could be a potential donor. However, his birth parents are no longer married to each other.

Main

 * Han Chae-young as Seo Ji-young, a TV host
 * Bae Soo-bin as Kim Jae-wook, formerly married to Ji-young, architect and later president & CEO of Cheonji Construction
 * Oh Yoon-ah as Woo Na-kyung, second wife of Jae-wook, general counsel of Cheonji Construction
 * Lee Chun-hee as Song Min-ho, second husband of Ji-young, carpenter

Ji-young's family

 * Wang Seok-hyeon as Song Hyeon Woo, eldest son of Ji-young and Jae-wook, in custody of Ji-young and Min-ho
 * Ha Yi-an as young Hyun-woo
 * Lee Hwi-hyang as Heo Eun-sook, Ji-young's mother

People at Cheonji Construction

 * Park Geun-hyung as Kim Sang-chun, father of Jae-hee and Jae-wook, chairman of family-controlled Cheonji Construction
 * Kang Boo-ja as Lee Pil-nam, Sang-chun's wife
 * Oh Hyun-kyung as Kim Jae-hee, older sister of Jae-wook, heads the family company foundation
 * Byung Hun as Jo Seung-hoon, son of Jae-hee
 * Nam Ki-won as Kim Joon-seo, second son of Ji-young and Jae-wook, in custody of Jae-wook and Na-kyung
 * Kim Hyun-bin as young Joon-seo

Others

 * Chu Ye-jin as Na Hae-ji, Hyeon Woo's girlfriend from high school
 * Jung Min-sung as Ji Do-yeob
 * Kim Hee-jung as Ahn Joo-ryun, producer of Ji-young's program at the TV broadcaster
 * Bae Hae-sun as Oh Sun-joo, secretary to Na-kyung
 * Choi Phillip as Jung Kyung-soo, director of Ji-young's program at the TV broadcaster
 * Oh Eun-ho as Hwang Ma-ri
 * Lee Jin-hee as Na Hae-Jim’s mother.

Production
The first script reading took place on October 5, 2018 at MBC Broadcasting Station in Sangam-dong, Seoul, South Korea.

Viewership
In this table, the blue numbers represent the lowest ratings and the red numbers represent the highest ratings.


 * No episode aired on December 29, 2018 due to the broadcast of the 2018 MBC Entertainment Awards.