Full cast of What's Wrong with Secretary Kim
Kang Hong-suk
Yang Cheol
16 episodes
Kim Ye-won
Seol Ma-eum
16 episodes
Lee Yoo-jun
Jung Chi-in
16 episodes
Baek Eun-hae
Kim Pil-nam
16 episodes
Heo Soon-mi
Kim Mal-hee
16 episodes
Kim Jung-woon
Park Joon-hwan
16 episodes
Lee Jung-min
Lee Young-ok
16 episodes
Moon Woo-jin
Lee Young-joon / Lee Sung-hyun
16 episodes
Bae Gang-Yoo
Young Lee Sung-yeon
16 episodes
Kim Ji Yoo
Kim Mi-so [Young]
16 episodes
Jo Deok-hyeon
Kim Young Man [Mi So's father]
4 episodes
Hong Ji-yoon
Oh Ji Ran [Famous model & onetime girlfriend of Young Joon]
3 episodes
Ko Se-won
Chairman Lee [Yeong Joon's father - Young]
3 episodes
Choi Na-Moo
Woman at the Spanish Embassy party
1 episode
Song Yi-jae
Woman who receives hat from Lee Sung Yeon on airplane
1 episode
Lee Do-yeon
Journalist
1 episode
Park Tae-yun
Claw machine schoolboy
1 episode
Choi Hee
Host of the book concert
1 episode
Jeong Soo-young
Agency staff
1 episode
Michal Spasov Ashminov
Himself
1 episode
Choi Hyeon-woo
Himself
1 episode
Jeong Si-yul
1 episode
Jeong Myeong-jun
Psychiatrist
1 episode
Ahn Yi Hyeon
Child holding a doll outside Kim Mi So's room
1 episode