Jang Jin-young

Character: Min Hie-jae

Park Hae-il

Character: Seo In-ha

Song Sun-mi

Character: Choi Jeong-rae

Kim Yu-seok

Character: Kang Seong-ho

Ahn Nae-sang

Character: Mr. Park

Byun Hee-bong

Character: Bookstore Owner

Kim Hae-sook

Character: In-ha's Mother

Lee Sun-kyun

Character: Doctor Shin

Kim Young-jae

Character: Roots of Writing Member

Jeon Su-ah

Character: Roots of Writing Member

Sung Chang-hoon

Character: Roots of Writing Member

Choi Sung-ho

Character: Roots of Writing Member

Kim Kyung-sik

Character: Pregnant Woman's Husband