Signal


Detectives from the present and a detective from the past communicate via walkie-talkie to solve a long-time unsolved case.

• 
  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