What's Wrong with Secretary Kim
Park Seo-junLee Young-joon Lee Tae-hwanLee Sung-yeon Kang Ki-youngPark Yoo-sik Hwang Chan-seongGo Gwi-nam Kim Jung-woonPark Joon-hwan Seo Hyo-rimYoo-sik's Ex-wife Moon Woo-jinLee Young-joon / Lee Sung-hyun Bae Gang-YooYoung Lee Sung-yeon Jo Deok-hyeonKim Young Man [Mi So's father] Bae Hyeon-seongBae Yun Sung [Intern] Hong Ji-yoonOh Ji Ran [Famous model & onetime girlfriend of Young Joon] Ko Se-wonChairman Lee [Yeong Joon's father - Young] Lee Soo-kyungMrs. Choi [Young Joon's Mother - Young] Park Byung-eunPark Byung-Eun Choi Na-MooWoman at the Spanish Embassy party Song Yi-jaeWoman who receives hat from Lee Sung Yeon on airplane Park Tae-yunClaw machine schoolboy Choi HeeHost of the book concert Jeong Soo-youngAgency staff Michal Spasov AshminovHimself Jung So-minMi-so's mother Kil Hae-yeonWoman at the reserved parking space Jeong Myeong-junPsychiatrist Jung Yu-miYoung Joon's friend Lee Se-youngStaff who talked behind Kim Mi So's back Kim Ga-yeonStaff who talked behind Kim Mi So's back Byeong-jun LeeJang Jeong Do [Fashion Designer] Ahn Yi HyeonChild holding a doll outside Kim Mi So's room Jang Jung-doExecutive Producer Jung Kyung YoonComic Book 
