Romance Is a Bonus Book: Reparto
Lee Jong-suk
Cha Eun-ho
Lee Na-young
Kang Dan-yi
Jung Yoo-jin
Song Hae-rin
Wi Ha-jun
Ji Seo-joon
Kim Tae-woo
Kim Jae-min
Kim Yu-mi
Ko Yoo-sun
Kim Sun-young
Seo Young-a
Jo Han-chul
Bong Ji-hong
Kang Ki-doong
Park Hoon
Park Gyu-young
Oh Ji-yool
Oh Eui-sik
Hong Dong-min
Lee Kwan-hun
Lee Seung-Jin
Choi Seung-yoon
Bae Kwang-soo
Lee Ji-won
Hong Jae-hee
Choi Da-in
Young Kang Dan-yi
Lee Ji-ha
Hae-rin's Mother
Lee Seo-hwan
Hae-rin's Father
Lee Ha-eun
Chae Song-yi