Scarlet Innocence

Jung Woo-sung

Professor Hak-kyu

Esom

Deok-ee / Se-jung

Park So-young

Chung-ee

Kim Hie-won

Mr. Choi

Kim Nam-jin

Deok-ee's mother

Lee Chang-hoon

Dong-woo

Yang Jin-woo

Ophthalmologist

Yoon Se-a

Chung-ee's Mother

Park Seo-yeon

Young Chung-ee

Park So-dam

Chung-ee's Friend

Han Joo-young

Ji-eun

Son Suk-ku

Deong-chi

Lee Seo-yi

Student

Kim Na-mi

Doctor

Choi Ri-ho

Gambler

Jo Hyeon-seop

Hak-kyu's Colleague 2

Yoo Soon-woong

Old man

Kim Ja-young

Corner store owner

An Min-young

Student

Choi Gwi-hwa

Gambler

Jeong Won-jo

Deok-ee's father

Kim Ji-ung

Gambler