“Where do you think a person’s humanity comes from?” “Watcher” is a psychological thriller that follows three people, whose lives are destroyed by a tragic accident, as they become a team that uncovers corruption and fights against people with power. (Source : Soompi) MAIN CAST Han Suk-kyu as Do Chi-kwang Seo Kang-joon as Kim Yeong-goon Kim Hyun-joo as Han Tae-joo FANGIRL NOTES Genre : Crime, Thriller It aired on OCN from July 6 to August 25, 2019 for 16 episodes. Seo Kang Joon thoughts on starring in his first-ever thriller : “I’ve appeared in many sweet romantic comedies and melodramas,…