For reference Contentree Central has this listed in their Studio Update report under their 2026 line-up but that can obviously change. If anything i'd expect it to be in Q4 of the year
Not confirmed cast as of yet just reportedly casted according to news reporters so gotta wait until they are confirmed by their agency or by the production crew or something ;/
Wonder if it's normal to be looking for a PD (even if team b) when the filming must well be into the second half?
Not too sure tbh, i'd imagine the original PD for their b team is maybe having to step away for a different project and they just need a replacement for the last few months?
Sister, do you even know where to watch this one? Please ? on online?
Unfortunately have no idea where this is anywhere atm, only know that it is U+ Mobile TV but other than that idk. Will probably be a while before it pops up subbed anywhere. sry ;/
Full character descriptions of all main characters according to a CJ ENM sponsorship proposal:
Lee Ga Gyeong (early 20s) - Gyeongseong's best pickpocket. Pretty, an"innocent" smile, and a flawless liar/actor who can scam people without even blinking. Everyone assumes she's a respectable department-store girl, but she actually lives in a shanty town and borrows clean Western outfits from a fence's pawnshop to avoid suspicion. Fiercely competitive: once she sets a goal, she won't stop. Her only dream is to save money fast, leave Joseon, and go to the U.S.—so she disguises her entire identity and enters the Governor-General's office as English interpreter trainee, Geum Seo Hui.
Kim Tae Ung / Sato Hideo (mid to late 20s) - The adopted son of Sato Shinichi, the Governor-General's new political chief, and now a newly appointed English interpreter. Born in Joseon, taken in after being spotted pickpocketing as a child, and raised as Japanese. He doesn't know his birth parents; his earliest memories are hunger. After the adoption, Sato Shinichi takes a Joseon wife-when Tae Ung falls seriously ill, she stays up all night caring for him, and he thinks he's finally loved and finally has a family... but months later she gives birth to a daughter and disappears. He works relentlessly to become the son Sato Shinichi wants, yet refuses the military path as he won't wear the flag uniform and kill Joseon people. When Sato Shinichi is promoted and moves to the Governor-General's office, Tae Ung follows his father's suggestion and returns to Gyeongseong as an interpreter-to work, and to find his mother.
Yoo So Ran (early to mid 40s) - Once an ordinary woman who only wanted a small, happy life until April 1919 changed everything. By 1932, she returns to Joseon under a new name, disguised as Chinese, holding a U.S. travel document (passport) gained through marriage to Yoo Philip. She lives for one purpose: assassinate Sato Shinichi and "die gladly" after avenging her daughter. But a pickpocket girl (Ga Gyeong) barges in and throws the operation into chaos. So Ran dangles Ga Gyeong's ticket to America and sends her into the Governor-General's office as an informant then guilt hits, because she knows she's pushed the girl into a deadly role.
Yoo Philip (mid to late 30s, still uncasted): A Hawaii-born Korean American; WWP's Gyeongseong correspondent and a Gugukdan member. For the hit on Sato Shinichi, he legally marries So Ran to secure her a U.S. passport, enters first to set the operation, and buries his feelings because his mission and independence come first.
Sato Shinichi (mid to late 50s, still uncasted): New political chief (#2) of the Governor-General's office. A Joseon-born Japanese ex-military climber who uses unrest and "cultural rule" optics to rise while adopting a street boy to fit the narrative. He returns to Gyeongseong with his adoptive son and daughter, preaching: never trust Joseon people, especially women.
Uee also joining the cast where she will play plays O Hyeon Ju, wife of Hwang Jin Ho. She meets Hwang Jin Ho at a minor league baseball stadium, and after three dates, they decide to date. When the coach balks, citing a tight salary, she proposes first. A math academy instructor, her hobby is computer gaming. She's a pro at PUBG and a Silver Tier League of Legends player.
“'Second Signal' is a production that we have prepared with all our heart, with the goal of releasing in the summer of 2026, with our hearts filled with the viewers who have waited for us for the past 10 years. From planning to production, countless staff members, actors, and related parties worked together." They added, "In order to protect the value of 'Signal,' even if it takes some time, we will do our best to find the optimal solution for the production and the viewers.
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1 
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https://x.com/NetflixKR/status/2005836238725501134
(New Year’s Resolution #1: Watch more K-content post)
https://www.youtube.com/@netflixkcontent/posts
https://x.com/glossugar_/status/2002955716794151255
Lee Ga Gyeong (early 20s) - Gyeongseong's best pickpocket. Pretty, an"innocent" smile, and a flawless liar/actor who can scam people without even blinking. Everyone assumes she's a respectable department-store girl, but she actually lives in a shanty town and borrows clean Western outfits from a fence's pawnshop to avoid suspicion. Fiercely competitive: once she sets a goal, she won't stop. Her only dream is to save money fast, leave Joseon, and go to the U.S.—so she disguises her entire identity and enters the Governor-General's office as English interpreter trainee, Geum Seo Hui.
Kim Tae Ung / Sato Hideo (mid to late 20s) - The adopted son of Sato Shinichi, the Governor-General's new political chief, and now a newly appointed English interpreter. Born in Joseon, taken in after being spotted pickpocketing as a child, and raised as Japanese. He doesn't know his birth parents; his earliest memories are hunger. After the adoption, Sato Shinichi takes a Joseon wife-when Tae Ung falls seriously ill, she stays up all night caring for him, and he thinks he's finally loved and finally has a family... but months later she gives birth to a daughter and disappears. He works relentlessly to become the son Sato Shinichi wants, yet refuses the military path as he won't wear the flag uniform and kill Joseon people. When Sato Shinichi is promoted and moves to the Governor-General's office, Tae Ung follows his father's suggestion and returns to Gyeongseong as an interpreter-to work, and to find his mother.
Yoo So Ran (early to mid 40s) - Once an ordinary woman who only wanted a small, happy life until April 1919 changed everything. By 1932, she returns to Joseon under a new name, disguised as Chinese, holding a U.S. travel document (passport) gained through marriage to Yoo Philip. She lives for one purpose: assassinate Sato Shinichi and "die gladly" after avenging her daughter. But a pickpocket girl (Ga Gyeong) barges in and throws the operation into chaos. So Ran dangles Ga Gyeong's ticket to America and sends her into the Governor-General's office as an informant then guilt hits, because she knows she's pushed the girl into a deadly role.
Yoo Philip (mid to late 30s, still uncasted): A Hawaii-born Korean American; WWP's Gyeongseong correspondent and a Gugukdan member. For the hit on Sato Shinichi, he legally marries So Ran to secure her a U.S. passport, enters first to set the operation, and buries his feelings because his mission and independence come first.
Sato Shinichi (mid to late 50s, still uncasted): New political chief (#2) of the Governor-General's office. A Joseon-born Japanese ex-military climber who uses unrest and "cultural rule" optics to rise while adopting a street boy to fit the narrative. He returns to Gyeongseong with his adoptive son and daughter, preaching: never trust Joseon people, especially women.
https://m.entertain.naver.com/home/article/117/0004020042
https://www.youtube.com/watch?v=Ed0MnypCNtk
https://x.com/studiodragonKR/status/2003359923099566341
https://x.com/studiodragonKR/status/2003360171922227599
https://x.com/studiodragonKR/status/2005797363944939691
Hong Geum Bo / Hong Jang Mi - https://x.com/studiodragonKR/status/2002937138820907223
Sin Jeong U - https://x.com/studiodragonKR/status/2002937386683023474
Ko Bok Hui - https://x.com/studiodragonKR/status/2002937638106378273
Albert O - https://x.com/studiodragonKR/status/2002937889714237799
- Pre-production in progress and scheduled to end in January / Filming in February
https://www.filmmakers.co.kr/proCrewRecruiting/dispBoardUpdateLogView?document_srl=27136173&update_id=161959
“'Second Signal' is a production that we have prepared with all our heart, with the goal of releasing in the summer of 2026, with our hearts filled with the viewers who have waited for us for the past 10 years. From planning to production, countless staff members, actors, and related parties worked together." They added, "In order to protect the value of 'Signal,' even if it takes some time, we will do our best to find the optimal solution for the production and the viewers.
https://m.entertain.naver.com/now/article/241/0003484397
https://www.youtube.com/watch?v=xuLN-rvDVkA
https://www.youtube.com/watch?v=ekG9oxWV6Rw
https://www.youtube.com/watch?v=eG0Ip_u3GRc