After 10 Years… Kim Hye-soo and Lee Je-hoon Reunite for 2026’s Most Anticipated Drama

After years of speculation and anticipation, Signal, the gripping crime thriller that captivated audiences with its time-crossing investigations, is finally getting a sequel. tvN has officially announced that Signal 2 (tentatively titled The Second Signal) is set to air in 2026.

Adding to the excitement, original cast members Kim Hye-soo, Jo Jin-woong, and Lee Je-hoon are confirmed to reprise their roles, while Ahn Jae-hong joins the lineup, promising fresh dynamics and new chemistry among the characters.

Signal was widely praised for weaving real-life unsolved crimes into its narrative, including cases inspired by the Lee Hyung-ho kidnapping, the Frog Boys disappearance, and the dentist mother-daughter murder case. Fans are now eager to see which new mysteries Signal 2 will tackle and how the story will continue.

The open-ended finale of Season 1 left viewers with burning questions—the fate of Detective Lee Jae-han (Jo Jin-woong), the altered timeline, and the potential reconnection of the supernatural radio transmissions. The upcoming sequel is expected to delve deeper into these mysteries and elevate the stakes even further.

A Decade in the Making—What’s Next?

With a ten-year gap between seasons, Signal fans have been eagerly awaiting a continuation. Given writer Kim Eun-hee’s track record with Kingdom and Jirisan, expectations for Signal 2 are sky-high.

As we count down to 2026, there’s no better time to rewatch Season 1 and refresh our memories before the Signal continues once again!