Touch Your Heart

Touch Your Heart  is a 2019 South Korean television series starring Yoo In-na and Lee Dong-wook. It is based on the web novel of the same name, which was first published in 2016 on KakaoPage. It aired on tvN from February 6 to March 28, 2019.

Synopsis
Top actress Oh Jin-shim (Yoo In-na), who goes by the stage name Oh Yoon-seo, has a scandal that damages her career, leaving her jobless for two years until she has a chance to earn a major role in an upcoming drama. However, in order to clear her name and secure success, she must first take a job working as a secretary to a lawyer named Kwon Jung-rok (Lee Dong-wook). Eventually, they fall in love and the events following form the crux of the story.

Main

 * Yoo In-na as Oh Jin-shim / Oh Yoon-seo (stage name), a top star who loses her fame after getting embroiled in a drug scandal with a third-generation chaebol. In order to make a comeback by starring in a famous writer's project, she gets field experience in law by posing as Jung-rok's secretary.
 * Lee Dong-wook as Kwon Jung-rok, a workaholic elite lawyer who always wins his cases and cares deeply about his firm's reputation.
 * Lee Sang-woo as Kim Se-won, Jung-rok's best friend who is an elite prosecutor.
 * Son Seong-yoon as Yoo Yeo-reum, a prosecutor, whom Jung-rok had a crush on. She and Se-won dated in university, but he broke her heart.

Always Law Firm

 * Oh Jung-se as Yeon Joon-kyu, the CEO of Always Law Firm. An ardent fan of Yoon-seo.
 * Shim Hyung-tak as Choi Yoon-hyuk, a divorce lawyer.
 * Park Kyung-hye as Dan Moon-hee, a straightforward and honest civil defense lawyer.
 * Park Ji-hwan as Lee Doo-seob, a paralegal and former detective.
 * Jang So-yeon as Yang Eun-ji, a legal secretary with ten years of experience.
 * Kim Hee-jung as Kim Hae-young, an assistant legal secretary. She has great interest in everyone's private lives.
 * Lee Jong-hwa as Lee Jong-hwa, an intern lawyer who is a fan of Jin-shim.
 * Lee Kyu-sung as Kim Pil-gi, an intern lawyer who is a fan of Jin-shim.

People around Jin-shim

 * Lee Jun-hyeok as Yeon Joon-suk, the CEO of Yeon Entertainment, Jin-shim's agency, who discovered and made her an actress.
 * Oh Eui-shik as Kong Hyuk-joon, Jin-shim's manager of ten years. He is very loyal and considers Jim-shim as his younger sister.
 * Jay Kim as Lee Kang-joon, a chaebol heir and Jin-shim's stalker.

Seoul District Prosecutor Office

 * Kim Chae-eun as Lee Joo-young, Se-won's junior.
 * Lee Hyun-kyun as Prosecutor Im, Yeo-reum's senior who often puts her down.
 * Kim Koo-taek as a prosecutor and Yeo-reum's boss
 * Kim Hee-chang as a chief prosecutor
 * Na Chul as Kim Hyung-shik from Se-won's team
 * Park Yun as Yoo Hyun-ji from Se-won's team
 * Jin So-yeon as Yeo-reum's legal secretary
 * Min Jung-seob as Yeo-reum's investigator

Others

 * Kim Soo-jin as Lee Se-jin, the writer of the drama that Jin-shim wants to star in.
 * Kim Dae-gon as Park Soo-myung
 * Son Se-bin as Kim Min-ji, Jin-shim's rival.
 * Yoo Eun-mi as Seo Jin-hee, Eun-ji's daughter.
 * Song Duk-ho as Deok-ho
 * Baek Eun-hye as Insurance agent
 * Yoo Yeon as Im Yoon-hee

Special appearances

 * Park Seul-gi as a host (Ep. 1)
 * Jang Ki-yong as an actor (Ep. 1)
 * Hong Seo-joon as Moon-hee's client (Ep. 1)
 * Lee Yoon-sang as a judge (Ep. 1, 5–6)
 * Kim Ki-moo as an angry driver (Ep. 2)
 * Kim Kyung-ryong as Jung-rok's client (Ep. 2)
 * Park Yong as Moon-hee's client (Ep. 2)
 * Kim Kwan-soo as a Subway part-timer (Ep. 2, 8, 10)
 * Jo Soo-min as Kim Yoon-ha, Jung-rok's client (Ep. 3)
 * Hwang Chan-sung as a delivery man (Ep. 3 & 5)
 * Hwang Seung-eon as an actress (Ep. 4)
 * Kim Wook as an actor (Ep. 4)
 * Lee Yoo-mi as Seung-hee, Jung-rok's client (Ep. 4)
 * Seol Chang-hee as Seung-hee's ex-boyfriend (Ep. 4)
 * Hwang Bo-ra as Hwang Yeon-du, Jin-shim's senior and rival (Ep. 7)
 * Jeon Shin-hwan as a café owner (Ep. 8)
 * Park Ji-il as Kwon Jae-bok, Jung-rok's father (Ep. 10)
 * Song Kang as a deliveryman (Ep. 13)
 * Seo Kwang-jae as a judge (Ep. 13)
 * Moon Ji-hoo as himself portraying the male lead Jeong-do in Lee Se-jin's new drama (Ep. 15)
 * Seo Ji-seung as Jung-rok's blind date (Ep. 16)

Production

 * Lead stars Yoo In-na and Lee Dong-wook previously worked together in 2016 series Guardian: The Lonely and Great God.
 * The male lead role was first offered to Jung Kyung-ho.
 * The first script reading of the cast was held on November 27, 2018, at Studio Dragon's head office in Sangam-dong, Seoul; and filming started in the same month.
 * Actor Shin Dong-wook was originally cast for the role of Kim Se-won, but later stepped down from the series amidst controversies surrounding fraud claims and a subsequent lawsuit. He was replaced by actor Lee Sang-woo.