Tolong jelaskan mengenai Pemeran dari Silenced

Gong Yoo - Kang In-ho

Jung Yu-mi - Seo Yoo-jin

Kim Ji-young - Ibu In-ho

Jang Gwang - headmaster twin brothers

Kim Joo-ryung - Yoon Ja-ae

Um Hyo-sup - police officer Jang

Jeon Kuk-hwan - Attorney Hwang

Park Hye-jin - headmaster's wife

Lee Sang-hee - auto repair shop owner

Nam Myung-ryul - Professor Kim Jung-woo

Jang So-yeon - courtroom sign language interpreter

Hong Suk-youn - school custodian/guard