Bestseller— Full Cast

Uhm Jung-hwa

as Baek Hee-soo

Ryu Seung-ryong

as Park Yeong-joon

Lee Do-gyeong

as Chan-sik's father

Cho Jin-woong

as Chan-sik

Lee Sung-min

as Editor-in-chief

Park Sa-rang

as Yeon-hee

Song Ji-eun

as Nurse