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TV series

Signal

Original title: 시그널

There are those who are born monsters, but there are also those who are made into monsters by people.

2016 · TV-MA · 2 seasons · 24 episodes

Created by Kim Eun-hee and Kim Won-suk

8.2

TMDB audience score
209 votes, out of 10

Trailer Where to watch

Synopsis


Detectives from the present and a detective from the past communicate via walkie-talkie to solve a long-time unsolved case.

About 35h 36m to watch every episode. An estimate: 24 episodes at the latest episode runtime of 89 minutes.

TMDB lists the next episode for Dec 7, 2026.

Where to watch

Official options in the United States:

Subscription

  • Netflix
  • Amazon Prime Video
  • Netflix Standard with Ads
  • Amazon Prime Video with Ads
  • Tencent Video

Free with ads

  • The Roku Channel
  • Tubi TV

All options on TMDB

Where-to-watch data is provided by JustWatch through TMDB. It differs by country and changes over time, so confirm with the service before paying. PlotNest does not host or stream anything.

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Trailer

Play trailer: [#시그널] 6분 하이라이트!

The preview image comes from YouTube. The player loads only after you press play.

Main cast

  • Lee Je-hoon
    Park Hae-young
    24 episodes

  • Kim Hye-soo
    Cha Soo-hyun
    24 episodes

  • Cho Jin-woong
    Lee Jae-han
    24 episodes

  • Jang Hyun-sung
    Kim Bum-joo
    16 episodes

  • Jung Hae-kyun
    Ahn Chi-soo
    16 episodes

  • Kim Won-hae
    Kim Gye-chul
    16 episodes

  • Jung Han-bi
    Oh Yoon-seo
    16 episodes

  • Lee Yoo-jun
    Jung Heon-gi
    16 episodes

  • Kim Min-gue
    Hwang Ui-kyung
    16 episodes

  • Kang Chan-hee
    Park Sun-woo
    16 episodes

  • Im Hwa-young
    Cha Soo-min
    16 episodes

  • Jeon Su-ji
    Kang Hye-seung
    6 episodes

  • Shin Yi-Joon
    Kang Hye-seung (Young)
    6 episodes

  • Seo Ji-hoon
    Jang Tae-jin
    6 episodes

  • Kim Woo-seok
    Lee Dong-jin
    6 episodes

  • Son Hyun-joo
    Jang Young-cheol
    5 episodes

  • Choi Woo-ri
    Shin Yeo-jin
    3 episodes

  • Sung Hyun-mi
    Jung Kyung-soon
    3 episodes

Seasons