The long-awaited comeback of the hit tvN drama Signal sparks excitement, with behind-the-scenes glimpses adding to the anticipation.

Recently, an online post shared photos of Cho Jin Woong and Lee Jae Hoon filming for 'Signal 2.' Lee Je Hoon was captured flashing a playful V-sign, radiating charm, while Cho Jin Woong sported a noticeably larger belly, prompting fan discussions on whether it was for his role or character transformation.

Actress Kim Hye Soo also caught fans' eyes by sharing a mysterious behind-the-scenes snap on her Instagram story without a caption. The image featured a sign indicating "Private Dressing Room - 3, Second Signal, Cha Soo Hyun, Kim Hye Soo," further fueling fans’ excitement.

Signal, which first aired in 2016, captivated viewers with its intriguing crime-thriller storyline. The drama follows detectives from different timelines communicating through a mystical walkie-talkie to solve cold cases, gaining immense popularity and inspiring remakes in Japan (2020) and Thailand (2022).

The much-anticipated sequel, 'Signal 2: The Second Signal,' is scheduled to premiere in the first half of the upcoming year. With original cast members Kim Hye Soo, Cho Jin Woong, and Lee Je Hoon returning to reprise their roles, fan expectations are reaching new heights.