Cast from A Boy and Sungreen

Ahn Ji-ho

Bo-hee

Kim Ju-a

Nok-yang

Shin Dong-mi

Bo-hee's Mother

Seo Hyun-woo

Seong-wook

Kim So-ra

Nam-hee

Min Kyung-jin

Professor

Lee Joo-won

Son

Kim Hyun-bin

Seong-hyeon

Cha Seo-won

Doctor

Kim Hee-chang

Seong-hyeon's Father

Lee Hae-yeong

Bo-hee's Mother's Boyfriend

Park Keun-rok

Homeroom Teacher

Hwang Geon

Publication Man

Jeon Go-woon

Gynecologist

Jung Seung-kil

Bo-hee's Father

Jang Jun-whee

Ramen Man

Lee Myung-ha

Assistant

Yang Shin-ji

Beauty Salon Customer