Signal
“There are those who are born monsters, but there are also those who are made into monsters by people.”
Detectives from the present and a detective from the past communicate via walkie-talkie to solve a long-time unsolved case.
Where to watch Signal in United States
Netflix
Amazon Prime Video
Netflix Standard with Ads
Amazon Prime Video with Ads
The Roku Channel
Tubi TVClick a service to open Signal there. Availability last verified on June 20, 2026.
Where is Signal streaming around the world?
| Country | Streaming on | Rent / Buy |
|---|---|---|
| United States | Netflix, Amazon Prime Video, Netflix Standard with Ads, Amazon Prime Video with Ads | — |
| India | Netflix, Amazon Prime Video, Amazon Prime Video with Ads | — |
| United Kingdom | Netflix, Amazon Prime Video, Netflix Standard with Ads, Amazon Prime Video with Ads | — |
| Canada | Amazon Prime Video, Netflix, Netflix Standard with Ads, Amazon Prime Video with Ads | — |
| Australia | Netflix, Amazon Prime Video, Netflix Standard with Ads, Amazon Prime Video with Ads | — |
| Germany | Netflix, Netflix Standard with Ads | — |
| France | Netflix, Netflix Standard with Ads | — |
| Spain | Filmin | — |
| Brazil | Netflix, Amazon Prime Video, Netflix Standard with Ads, Amazon Prime Video with Ads | — |
| Japan | Netflix, Amazon Prime Video, Disney Plus, Netflix Standard with Ads | — |
About Signal
Signal is a 2016 Korean-language crime, mystery and sci-fi & fantasy series created by Kim Eun-hee and Kim Won-suk. The cast is led by Lee Je-hoon, Kim Hye-soo, Cho Jin-woong. It spans 1 season and 16 episodes and is still running. Viewers rate it 8.2/10 across 200 ratings. In United States, it is currently streaming on Netflix, Amazon Prime Video, Netflix Standard with Ads.
Signal was produced by AStory, Studio Dragon, and BA Entertainment and made in South Korea. It was first aired on January 22, 2016, and carries a TV-MA certification.
- Created by
- Kim Eun-hee, Kim Won-suk
- First aired
- January 22, 2016
- Last aired
- March 12, 2016
- Original language
- Korean
- Age rating
- TV-MA
- Status
- Returning Series
- Seasons
- 1 (16 episodes)
- Network
- tvN
- Country
- South Korea
- Production
- AStory, Studio Dragon, BA Entertainment
Signal cast & crew
Signal was created by Kim Eun-hee and Kim Won-suk.
The cast features Lee Je-hoon as Park Hae-young, Kim Hye-soo as Cha Soo-hyun, Cho Jin-woong as Lee Jae-han, Jang Hyun-sung as Kim Bum-joo, Jung Hae-kyun as Ahn Chi-soo, and Kim Won-hae as Kim Gye-chul.
Behind the camera, the score was composed by Park Seong-il and it was produced by Jinnie Choi and Lee Jae-moon.
Is Signal worth watching?
Signal holds an audience score of 8.2/10 from 187 ratings, ranking it among the most acclaimed crime series.
With 1 season and 16 episodes, it's a meaty weekend watch.
If you enjoy crime, mystery, and sci-fi & fantasy, Signal is worth a place on your watchlist.
How and where to watch Signal
In United States, you can stream Signal on Netflix, Amazon Prime Video, Netflix Standard with Ads, Amazon Prime Video with Ads, and The Roku Channel. Click any service above to open it directly.
Streaming rights change country by country and month by month, so the options above reflect United States today — switch your country at the top of the where-to-watch section to see availability elsewhere.
Rate & review
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Cast of Signal
Lee Je-hoon
Park Hae-young
Kim Hye-soo
Cha Soo-hyun
Cho Jin-woong
Lee Jae-han
Jang Hyun-sung
Kim Bum-joo
Jung Hae-kyun
Ahn Chi-soo
Kim Won-hae
Kim Gye-chul
Jung Han-bi
Oh Yoon-seo
Lee Yoo-jun
Jung Heon-gi
Kim Min-gue
Hwang Ui-kyung
Kang Chan-hee
Park Sun-woo
Im Hwa-young
Cha Soo-min
Signal — FAQs
▸Where can I watch Signal in United States?
Signal is streaming on Netflix, Amazon Prime Video, Netflix Standard with Ads, Amazon Prime Video with Ads in United States.
▸Is Signal on Netflix?
Yes — Signal is currently available on Netflix in United States.
▸What language is Signal in?
Signal is originally in Korean. Subtitle and dub options vary by streaming service.
▸How many seasons of Signal are there?
Signal has 1 season with 16 episodes in total, and it is still running.
▸What is Signal rated?
Signal is rated TV-MA. It holds a 8.2/10 audience score from 187 ratings.
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