What Happens to My Family? () is a 2014–2015 South Korean television series starring Yoo Dong-geun, Kim Hyun-joo, Yoon Park and Park Hyung-sik. It aired on KBS2 on Saturdays and Sundays at 19:55 (KST) time slot from August 16, 2014, to February 15, 2015. Synopsis Cha Soon-bong (Yoo Dong-geun) is a widower who has devoted his life to his three children. His eldest daughter Kang-shim (Kim Hyun-joo), after a failed relationship, has resigned herself to never marry and a lifetime of being alone; his eldest son Kang-jae (Yoon Park), a brilliant oncologist, is resentful of his humble origins; and his youngest son, Dal-bong (Park Hyung-sik). Cast Main Yoo Dong-geun as Cha Soon-bong The patriarch of the Cha family and head of the household; owner of a tofu shop. Kim Hyun-joo as Cha Kang-shim The eldest child; company secretary to CEO Moon Tae-oh and, in later episodes, to director Moon Tae-joo. Yoon Park as Cha Kang-jae The second child; a skilled oncologist. Park Hyung-sik as Cha Dal-bong The youngest child; he is struggling with finding a stable job. Supporting Cha family Yang Hee-kyung as Cha Soon-geum Soon-bong's younger sister; Young-seol's mother and aunt to Kang-shim, Kang-jae and Dal-bong. Kim Jung-nan as Noh Young-seol Soon-geum's daughter and cousin to Kang-shim, Kang-jae and Dal-bong. Kim Jung-min as Seo Joong-baek Young-seol's husband; owner of a chicken restaurant. People around Cha Kang-shim Kim Sang-kyung as Moon Tae-joo Director at GK Group; CEO Moon's son. Kim Yong-gun as Moon Tae-oh CEO of GK Group; Tae-joo's father and Kang-shim's boss. Na Young-hee as Baek Seol-hee Eun-ho's mother; a famous news anchor and TV personality. Song Jae-hee as Byun Woo-tak Kang-shim's ex-boyfriend; an attorney who handles Soon-bong's case against the Cha children. People around Cha Kang-jae Son Dam-bi as Kwon Hyo-jin Kang-jae's fiancée; daughter of Kwon Ki-chan and Heo Yang-geum; a food stylist. Kim Il-woo as Kwon Ki-chan Hyo-jin's father and husband to Heo Yang-geum; director of the hospital where Kang-jae works. Kyeon Mi-ri as Heo Yang-geum Director Kwon's wife and Hyo-jin's mother. People around Cha Dal-bong Nam Ji-hyun as Kang Seo-wool Kim Bo-yoon as young Kang Seo-wool A country girl with a strong Chungcheong dialect; she moves to Seoul in the hopes of marrying Dal-bong. Seo Kang-joon as Yoon Eun-ho Baek Seol-hee's son; an idol turned restaurant owner. Others Kim Seo-ra as Miss Ko (Ko Bok-ja / Ko Eun-hwan) A mysterious woman who became Soon-bong's close friend.