I Hear Your Voice

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Lee Bo-young

Jang Hye-seong

Lee Jong-Suk

Park Soo-ha

Yoon Sang-Hyun

Cha Kwan-woo

Lee Da-hee

Seo Do-yeon

Jeong Woong-in

Min Jun-guk

Deok-hyeon Jo

Soo-ha's Father

Jung Dong-hwan

Seo Dae-seok

Lee Dong-jin

Judge

Doo-Sik Park

Kim Chung-gi

Kim Ga-eun

Go Seong-bin

Kim Hae-sook

Uh Choon-shim (Hye-sung's mother)

Hee-soo Jang

Do-yeon's Mother

Kim Hye-Yoon

Kim Yeon-jin

Min-a Jeong

Seo Do-yeon [Young]

Yun Ju-sang

Sin Sang-deok

Kim Kwang-gyu

Kim Gong-sook

Goo Seung-Hyeon

Park Soo-ha [Young]

Kim So-hyun

Jang Hye-seong (young)

Park Hye-ryeon

Writer

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