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Signal Season 2 “The Second Signal” officially confirmed: Kim Hye‑soo, Jo Jin‑woong, and Lee Je‑hoon return; production begins late 2024; arriving on tvN in early 2026.
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Signal Season 2 “The Second Signal” Confirmed: All Cast Back, Filming Underway for 2026 Release

Publish By: Celedrama

Date: 18 Jun, 2025

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Thrilling news for K‑drama fans: Signal is officially returning with Season 2—dubbed The Second Signal—as part of tvN’s 20th anniversary lineup, with a target release in early 2026 

 Returning Cast & Crew:

  • Kim Hye‑soo, Jo Jin‑woong, and Lee Je‑hoon will reprise their roles—marking a full cast reunion .

  • Writer Kim Eun‑hee returns to continue crafting the tense, time-bending narratives

  • New director Ahn Tae‑jin, known for The Night Owl, joins the production, bringing fresh cinematic vision .

 Production Status:
Filming is scheduled to begin in late 2024, and the official teaser—released March 2025—confirms “The radio will start again” and a 2026 premiere date 

 Why It Matters:
Signal’s legacy is built on its emotional impact, cold-case investigations, and supernatural timeline crossovers, achieving critical acclaim and high cable ratings of 13–15% in 2016 . The enigmatic finale left key questions—like Lee Jae‑Han’s fate—unanswered, setting the stage for a gripping second run .

Fan Reaction:
Social media and Reddit users are celebrating:

“10 years is LONG ... The walkie-talkie comeback??? literally 10 years???”
“FINALLY! All 3 leads and the writer… this is going on my calendar.” 

 What to Watch For:
Expect Signal Season 2 to tackle fresh cold-case mysteries with high stakes, building on its legacy of emotional depth and time-transcending communication. Stay tuned for official teaser drops, character revelations, and the detective team in action early next year.



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