Sori: Voice from the Heart

Lee Sung-min

as

Hae-Gwan

Shim Eun-kyung

as

Sori (voice)

Lee Hanee

as

Ji-yeon

Chae Soo-bin

as

Yoo-joo

Lee Hee-jun

as

Jin-ho

Kim Won-hae

as

Goo-cheol

Ryu Jun-yeol

as

Underground Si...

Jeon Kuk-hwan

as

President Go

Kwak Si-yang

as

Hyeon-soo

Jeon Hye-jin

as

Hyun-sook

Lee Yeong-jin

as

Yoo Sung-jin

Kang Jin-ah

as

Jang Geun-yeong

Nam Yeon-woo

as

NIS agent

Lee Seung-joon...

as

NIS agent

Yang Kyung-won

as

NIS agent

Lee Hyun-gul

as

Police

JJ Graham

as

U.S. military ...

Yoo Chang-sook

as

Grandmother