Grid

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Park Chul-Hwan

Director

Khan Lee

Director

Seo Kang-Joon

Kim Sae-ha

Kim Ah-jung

Jeong Sae-byeok

Mu-Yeol Kim

Song Eo-jin

Kim Seong-gyoon

Kim Ma-nok

Victoria Grace

Jung Saebyeok

Lee Si-young

Ghost

Eugene Ko

Kim Sae Ha

Andrew Lee

Director Jo Heung-Sik, Additional Voices

Lee Kyu-hoi

Han Wi-han

Shim Wan-Joon

Songje Police Station Detective

Kim Kwak Gyeong Hee

Metro cleaner

Kim Yeong-Seong

Detective of Songje Police Station investigation team #1

Won-joong Jung

Minister of Commerce Industry and Energy

Kim Woo-bin

Control room manager (past)

Hae-yeong Lee

Kwon Soo-geun (Sae-ha's biological father)

Gi-sub Jung

Manager (past)

Jang Eui-don

Institute of Radio Research executive

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