Pemeran Romance Is a Bonus Book

Lee Na Young

as Kang Dan I

Pemeran Utama

Lee Jong Suk (이종석)

as Cha Eun Ho

Pemeran Utama

Jung Eugene

as Song Hae Rin

Pemeran Utama

Wi Ha Joon (위하준)

as Ji Seo Joon

Pemeran Utama

Kim Tae Woo

as CEO Kim Jae Min [Gyeoroo president]

Pemeran Pembantu

Kim Yoo Mi

as Go Yoo Sun [Gyeoroo director]

Pemeran Pembantu

Jo Han Chul

as Bong Ji Hong [Editorial team]

Pemeran Pembantu

Kim Sun Young

as Seo Young Ah [Marketing team team leader]

Pemeran Pembantu

Kang Gi Doong

as Park Hoon [Marketing team]

Pemeran Pembantu

Park Gyu Young (박규영)

as O Ji Yul [Editorial team]

Pemeran Pembantu

Lee Kwan Hoon

as Lee Seung Jin [Marketing team]

Pemeran Pembantu

Choi Seung Yoon

as Bae Kwang Soo [Marketing team]

Pemeran Pembantu

Choi Da In

as Kang Dan Yi [Young]

Pemeran Pembantu

Jo Deok Hee

as [Clerical worker]

Pemeran Pembantu

Yi Chae Woon

as Chae Song Yi [Editorial team]

Pemeran Pembantu

Han Seung Hyun

as [Logistics center staff]

Pemeran Pembantu

Cha Soon Bae

as [Drunk man] (Ep. 1)

Bintang Tamu

Kim Ji Hyun

as [Interviewer] (Ep. 1, 3, 11-12)

Bintang Tamu

Park Yoo Rim

as Eun Jung (Ep. 2)

Bintang Tamu

Kim Kang Hoon

as Cha Eun Ho [Young] (Ep. 2)

Bintang Tamu

Lee Do Hyun

as Mr. Park [Writer] (Ep. 5)

Bintang Tamu

Choi Jung Hoon

as [Street Busker] (Ep. 5)

Bintang Tamu

Kim Do Hyung

as [Street Busker] (Ep. 5)

Bintang Tamu

Geum Bo

as [Blind date man] (Ep. 6)

Bintang Tamu

Park Seung Tae

as Yoo Myung Sook [Novelist] (Ep. 7, 11-12)

Bintang Tamu

Oh Kyung Joo

as Kim Myung Soo [Blind date man] (Ep. 12)

Bintang Tamu

Song Young Jae

as Nam Won Suk [Pureunmaeum Book Publishing president] (Ep. 14-16)

Bintang Tamu

Lee Kang Wook

as Park Jung Shik

Bintang Tamu

Yang Seung Geol

as Choi Hyung Su [Writer]

Bintang Tamu

Lee Ho Jae

as Kang Byung Jun [Writer]

Bintang Tamu

Jo Jung Chi

as [Guitarist]

Bintang Tamu

Kim Esther

as [High school student]

Bintang Tamu

Kim Mi Hye

as [Jewelry store employee]

Bintang Tamu

Park Jin Soo

as [Female university student]

Bintang Tamu

Kim Kyung Il

as [Bookstore employee]

Bintang Tamu

Baek Chun Ki

as [Marketing dept. chief]

Bintang Tamu

Nam Hye Seung

Composer

Park Sang Hee

Composer

Lee Jeong Hyo

Sutradara

Jung Hyun Jung

Screenwriter