Signal
Created by Kim Eun-hee, Kim Won-suk
Detectives from the present and a detective from the past communicate via walkie-talkie to solve a long-time unsolved case.
Watch trailerWhere to watch in 🇺🇸 United States
Top cast
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
Frequently asked questions
Where can I watch Signal online?
As of September 20, 2026, Signal is available to stream on Netflix, Amazon Prime Video, Netflix Standard with Ads, Amazon Prime Video with Ads, The Roku Channel, and Tubi TV in United States. Use the country selector above to check availability in other regions — streaming rights are licensed per country, so catalogues differ.
Is Signal on Netflix?
Yes — as of September 20, 2026, Signal is available on Netflix in United States.
Can I rent or buy Signal online?
Our sources do not list a digital rental or purchase option for Signal in United States right now.
In which countries can I stream Signal?
As of September 20, 2026, Signal is included with a streaming subscription (or free with ads) in Argentina, Brazil, Canada, Chile, Colombia, Germany, Mexico, Portugal, Russia, Spain, United Kingdom, and United States, among the countries we track.
Streaming availability last checked on September 20, 2026. Catalogues change frequently — data from TMDB and JustWatch.
