What's Wrong with You, Kim Mi So?

Park Seo-jun

Lee Young-joon

Park Min-young

Kim Mi-so

Lee Tae-hwan

Lee Sung-yeon

Pyo Ye-jin

Kim Ji-a

Kim Hye-ok

Madame Choi

Kim Byeong-ok

CEO Lee

Kang Ki-young

Park Yoo-sik

Kang Hong-suk

Yang Cheol

Hwang Chan-sung

Go Gwi-nam

Kim Ye-won

Seol Ma-eum

Lee Yoo-jun

Jung Chi-in

Hwang Bo-ra

Bong Se-ra

Baek Eun-hae

Kim Pil-nam

Heo Soon-mi

Kim Mal-hee

Kim Jung-woon

Park Joon-hwan

Hong Ji-yoon

Oh Ji Ran [Famous model & onetime girlfriend of Young Joon]

Jo Deok-hyeon

Kim Young Man [Mi So's father]

Bae Hyeon-seong

Bae Yun Sung [Intern]

Lee Byung-joon

Jang Jeong Do [Fashion Designer]