77 minSeason 1 • Episode 16
Latest“Undercover” depicts the story of Han Jung Hyun, who has been hiding his identity for a long time, and Choi Yeon Soo, a human rights lawyer who becomes the first head of the Senior Civil Servant Corruption Investigations Unit to fight for justice.
Acting
Ji Jin-hee's micro-expressions carry 20 years of lies.
Direction
Dual timelines that actually enhance, not confuse.
Writing
Makes bureaucracy as tense as any car chase.
Ji Jin-hee
Han Jung Hyun [Present]
Kim Hyun-joo
Choi Yeon Soo [Present]
Yeon Woo-jin
Han Jung Hyun [Young]
Han Seon-hwa
Choi Yeon Soo [Young]
Huh Joon-ho
Im Hyeong Rak
Jeong Man-sik
Do Yeong-geol
Han Go-eun
Go Yoon Joo
Son Jong-hak
Yoo Sang Dong
Song Young-gyu
Kwak Moon Heum
Park Keun-hyong
Lee Man Ho
Kim Soo-jin
Min Sang Ah
Yoo Seon-ho
Han Seung-goo
Lee Jae-in
Han Seung-Mi
Kwon Hae-hyo
Oh Pil-Jae
Ju Seok-tae
Park Won-Jong
Trivia, insights & behind the scenes
Based on real UK undercover officer scandal where police infiltrated activist groups, then abandoned families—Korean adaptation shifts focus to institutional accountability rather than individual pathology.
The age-gap casting mirrors the show's themes: Yeon Woo-jin and Han Seon-hwa play younger selves with different energy than their older counterparts, suggesting the characters were literally different people before life hollowed them out.
KR
