What's Wrong with Secretary Kim

Park Seo-jun

as

Lee Young-joon

Park Min-young

as

Kim Mi-so

Lee Tae-hwan

as

Lee Sung-yeon

Pyo Ye-jin

as

Kim Ji-a

Kim Hye-ok

as

Madame Choi

Kim Byeong-ok

as

CEO Lee

Kang Ki-young

as

Park Yoo-sik

Kang Hong-suk

as

Yang Cheol

Hwang Chan-seo...

as

Go Gwi-nam

Kim Ye-won

as

Seol Ma-eum

Lee Yoo-jun

as

Jung Chi-in

Hwang Bo-ra

as

Bong Se-ra

Baek Eun-hae

as

Kim Pil-nam

Heo Soon-mi

as

Kim Mal-hee

Kim Jung-woon

as

Park Joon-hwan

Lee Jung-min

as

Lee Young-ok

Seo Hyo-rim

as

Yoo-sik's Ex-w...

Moon Woo-jin

as

Lee Young-joon...

Kim Ji-Yu

as

Young Kim Mi-so

Bae Gang-Yoo

as

Young Lee Sung...