Signal [Indonesian]

Lee Jehoon

Park Hae-yeong

Kim Hye-su

Cha Soo-hyeon

Cho Jin-woong

Lee Jae-han

Kim Won-Hae

Kim Gye-cheol

Jung Hae-kyun

Ahn Chi-soo

Eom Ji-man

Kim Hae-chul (Detective)

Son Hyeon-ju

Jang Young-chul

Jung Suk-yong

Oh Gyung-tae

Lee Sang-Yeob

Jin-Woo

Kim Ki-chun

Lee Chun-goo

Kim Ki-chun

Lee Chan Goo [Bus driver]

Yu Ha-bok

Yeo Jin's father

Lee Na-ra

Shin Da-hye

Oh Yeon-ah

Yoon Soo-ah

Seo Eun-ah

Yoo Seung-yeon

Seo Ji-Hoon

Jang Tae-Jin

Lee Shi-Ah

Kim Won Kyeong

Shin Moon-Sung

Detective