Signal (South Korean TV series)

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Signal Korean Drama.jpg
Promotional poster
Created by
  • Choi Jin-hee
  • Park Ji-young
Written byKim Eun-hee
Directed byKim Won-seok
Opening theme"I Will Forget You" by Jung Cha-sik
Ending theme
  • "The One Who Will Leave" by INKII
  • The Road by Kim Yoon-ah
  • Kim Joon-seok
  • Park Sung-il
Country of originSouth Korea
Original language(s)Korean
No. of seasons1
No. of episodes16
Executive producer(s)
  • Lee Jae-moon
  • Park Eun-kyung
  • Choi Sang-mook
  • Lee Joo-young
Editor(s)Kim Na-young
Camera setupSingle camera
Running time80 minutes
Production company(s)AStory
Original networktvN
Picture format1080i (HDTV)
Audio formatDolby Digital
Original releaseJanuary 22 (2016-01-22) –
March 12, 2016 (2016-03-12)
Followed bySignal 2
Related showsSignal (2018)
External links
Signal at AStory Co., Ltd.

Signal (Korean시그널; RRSigeuneol) is a 2016 South Korean police procedural television series starring Lee Je-hoon, Kim Hye-soo and Cho Jin-woong. It premiered on tvN on January 22, 2016. A total of 16 episodes aired on Fridays and Saturdays at 20:30 KST, with the final episode airing on March 12, 2016.[1][2][3] The series was inspired by real-life criminal incidents in Korea,[4] including the Hwaseong serial murders.[5][6]

The series received widespread acclaim from audience and critics alike for its story and performances. It also became one of the highest rated dramas in Korean cable television history with a peak audience share of 12.54%.

A Japanese remake starring Kentaro Sakaguchi aired from April 10 to June 12, 2018 on Fuji TV.


A mysterious walkie talkie allows a detective in the year 2000 to communicate with a cold case profiler from 2015; with the power of fore and hindsight the two not only solve crimes but prevent them from ever taking place. However, a long-standing murder case is closer to home than either realizes. A detective Lee Jae-han(Cho Jin-woong) tries to create a world where those who have done wrong deserve punishment, but a huge force interferes with it.




Police officers[edit]


  • Jung Han-Bi as Oh Yoon Seo (Forensic Scientist)
  • Kim Hyun-Bin as young Park Hae-Young
  • Kang Chan-hee as Park Sun-woo
  • Lee Moon-soo as Lee Jae-han's father
  • Seo Ju-hee as Cha Soo-hyun's mother
  • Lim Hwa-young as Cha Soo-hyun's younger sister

Special appearances[edit]

  • Oh Yeon-ah as Yoon Soo-ah (ep.1-2)
  • Lee Young-eun as Kim Yoon-jung (ep.1-2)
  • Lee Si-a as Kim Won-kyung (ep.2-4)
  • Kim Jung-young as Won-kyung's aunt (ep.2-4)
  • Kim Ki-cheon as Lee Chun-goo (ep.3-4)
  • Lee Dong-ha as Han Se-kyu (ep.5-8)
  • Jung Suk-yong as Oh Kyung-tae (ep.5-7)
  • Park Si-eun as Oh Eun-ji (ep.5-6)
  • Choi Woo-ri as Shin Yeo-jin (ep.5-6)
  • Yoo Ha-bok as Shin Dong-Hoon (ep.5-7)
  • Son Hyun-joo as Jang Young-chul (ep.7,11,14,16)
  • Lee Na-ra as Shin Da-hye (ep.7-8)
  • Lee Sang-yeob as Kim Jin-woo (ep.9-11)
  • Lee Chae-kyung as Jin-woo's mother (ep.10)
  • Seo Eun-ah as Yoo Seung-yeon (ep.10-11)
  • Shin Yi-joon as Kang Hye-seung (young / ep.11-14)
  • Kim Woo-suk as Lee Dong-Jin (ep.12-14)
  • Hwang Seung-eon as Han Do-yeon (ep.13)
  • Jeon Su-ji as Kang Hye-seung (adult / ep.13-14)
  • Seo Ji-hoon as Jang Tae-jin (ep.14)

Original soundtrack[edit]

Signal OST
Soundtrack album by
Various Artists
Released15 March 2016
GenrePop, K-pop, soundtrack
ProducerCJ E&M
Disc 1:
1."회상" (Reminisce)Jang Bum-joon (Busker Busker)4:27
2."떠나야할 그사람" (The One Who Will Leave)INKII4:06
3."나는 너를" (I Will Forget You)Jung Cha-sik4:24
4."길" (The Road)Kim Yoon-ah4:27
5."행복한 사람" (Happy Person)Jo Dong-hee3:34
6."꽃잎" (A Petal)Leesa3:16
7."꽃이 피면" (As Flower Blooms)Lee Seung-yeol3:38
Disc 2:
1."Detective Lee Jae-han" (형사 이재한)Various Artists 
2."For Those Who Left Behind" (남겨진 이들을 위해)Various Artists 
3."Young Park Hae Young" (소년 박해영)Various Artists 
4."Conclusive Evidence" (결정적 증거)Various Artists 
5."Heartfelt Desire" (절실한 염원)Various Artists 
6."Send The Signal Desperately" (간절함이 보내온 신호)Various Artists 
7."New Clue" (새로운 단서)Various Artists 
8."Past Can Be Changed" (과거는 바뀔 수 있습니다)Various Artists 
9."Jae Han's Reason" (재한의 추리)Various Artists 
10."Pain That Can't Be Heal" (치유되지 않는 아픔)Various Artists 
11."Footsteps of Nostalgia" (그리움의 발자취)Various Artists 
12."Profiling" (프로파일링)Various Artists 
13."형기대의 하루"Various Artists 
14."Tracking" (추적)Various Artists 
15."Don't Give Up" (포기하지마)Various Artists 
16."Crime Scene" (범행현장)Various Artists 
17."A Series of Labyrinthine" (미궁의 연속)Various Artists 
18."Real Culprit" (진범)Various Artists 
19."Run Too, Today" (오늘도 달린다)Various Artists 
20."Only I Didn't Know" (혼자만 모른다)Various Artists 
21."Long-term Unsolved Case" (장기미제사건)Various Artists 
22."The Truth Revealed" (드러나는 진실)Various Artists 
23."Cool Air" (서늘한 공기)Various Artists 
24."Plot" (음모)Various Artists 
25."Suggestion" (암시)Various Artists 


Upon its premiere, the series attracted attention for weaving actual cases into its plot and attained high ratings.[8][9] With its finale rating of 12.54%, it is one of the highest rated Korean dramas in cable television history.[10][11] It received praise for its solid acting, tightly-constructed plot and detailed and sophisticated direction; and enjoyed success internationally in China and Japan.[12][13][14]

The drama went on to win several awards from different award-giving bodies, including Best Drama, Best Screenplay for Kim Eun-hee, and Best Actress for Kim Hye-soo at the 52nd Baeksang Arts Awards, as well as another Best Actress award for Kim and the Daesang (Grand Prize for Television) for Cho Jin-woong at the tvN10 Awards. Cho also won the Daesang at the 1st Asia Artist Awards for his performance.


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

Ep. Original broadcast date Average audience share
AGB Nielsen[15] TNmS[16]
Nationwide Seoul Nationwide
1 January 22, 2016 5.415% 5.960% 6.4%
2 January 23, 2016 6.926% 7.343% 6.1%
3 January 29, 2016 8.239% 8.910% 8.5%
4 January 30, 2016 7.666% 8.601% 7.5%
5 February 5, 2016 7.789% 7.568% 7.6%
6 February 6, 2016 7.077% 6.710% 7.3%
7 February 12, 2016 8.612% 8.454% 9.0%
8 February 13, 2016 7.784% 7.913% 8.6%
9 February 19, 2016 7.803% 7.672% 8.4%
10 February 20, 2016 9.195% 8.945% 8.7%
11 February 26, 2016 10.456% 11.915% 8.8%
12 February 27, 2016 10.065% 10.865% 9.2%
13 March 4, 2016 9.667% 8.918% 9.7%
14 March 5, 2016 11.120% 12.155% 10.6%
15 March 11, 2016 10.772% 12.145% 9.8%
16 March 12, 2016 12.544% 13.541% 12.8%
Average 8.821% 9.226% 8.69%
  • Note: This drama airs on a cable channel/pay TV which normally has a relatively smaller audience compared to free-to-air TV/public broadcasters (KBS, SBS, MBC & EBS).

Awards and nominations[edit]

Year Award Category Recipient Result Ref.
2016 52nd Baeksang Arts Awards Best Drama Signal Won
Best Director Kim Won-seok Nominated
Best Actor Cho Jin-woong Nominated
Best Actress Kim Hye-soo Won
Best Screenplay Kim Eun-hee Won
5th APAN Star Awards Best Screenwriter Won
Top Excellence Award, Actor in a Miniseries Cho Jin-woong Won
Top Excellence Award, Actress in a Miniseries Kim Hye-soo Nominated
9th Korea Drama Awards Best Drama Signal Nominated
Best Production Director Kim Won-seok Nominated
Best Screenplay Kim Eun-hee Nominated
tvN10 Awards Grand Prize (Daesang), Actor Cho Jin-woong Won [17]
Best Actor Nominated
Lee Je-hoon Nominated
Best Actress Kim Hye-soo Won [17]
PD's Choice Award Lee Je-hoon Won
Scene Stealer Actor Jang Hyun-sung Nominated
Best Content Award, Drama Signal Won
1st Asia Artist Awards Grand Prize (Daesang) Cho Jin-woong Won
Kim Hye-soo Nominated
Best Celebrity Award, Actor Lee Je-hoon Nominated
18th Mnet Asian Music Awards Best OST Jang Beom-jun Nominated
Korea Content Awards Presidential Commendation Award Kim Eun-hee Won
2017 Brand of the Year Awards Drama Writer of the Year Won

Japanese remake[edit]

See also[edit]

International broadcast[edit]


  1. ^ Radwa Ashraf (9 December 2015). ""Signal": a paranormal cop drama debuts in 2016". The Asian. Retrieved 2017-07-21.
  2. ^ "New tvN thriller to pick up where 'Reply 1988' left off". Yonhap News Agency. 14 January 2016.
  3. ^ "Signal drama plot and cast update". The AsiaN.
  4. ^ Jung, Min-kyung (2016-03-07). "Crimes in 'Signal' based on real Korean cases". The Korea Herald.
  5. ^ '시그널' 김혜수·이제훈, 화성연쇄살인사건 맡았다. The Chosun Ilbo (in Korean). 23 January 2016. Retrieved 2016-03-25.
  6. ^ "Unsolved cases that 'Signal' could crack". The Korea Times. 18 February 2016.
  7. ^ "TVING, tvn 시그널 인물소개". TVING, TvN.
  8. ^ "TV drama 'Signal' enjoying high viewer ratings". The Korea Herald. 29 February 2016.
  9. ^ "'Signal' sets another ratings record". The Korea Times. 28 February 2016.
  10. ^ "'Signal' lures record TV audience". Korea Times. 23 January 2016. Retrieved 2016-02-02.
  11. ^ "Drama 'Signal' concludes with double-digit viewership". The Korea Times. 14 March 2016. Retrieved 2016-04-12.
  12. ^ "'Signal' tells Korea's true crime tales". Korea JoongAng Daily. 18 February 2016.
  13. ^ "Korean drama 'Signal' sees critical success in China". The Korea Times.
  14. ^ "'Signal' to begin airing in Japan next month". The Korea Herald.
  15. ^ "AGB Daily Ratings: this links to current day-select the date from drop down menu". AGB Nielsen Media Research (in Korean). Archived from the original on 26 December 2013. Retrieved 5 January 2016.
  16. ^ "TNmS Daily Ratings: this links to current day-select the date from drop down menu". TNmS Ratings (in Korean). Archived from the original on 28 November 2013. Retrieved 5 January 2016.
  17. ^ a b "'Reply 1988' chosen as tvN's top drama". Yonhap News Agency. 10 October 2016.

External links[edit]