Thư Ký Kim Sao Thế?

Lee Tae Hwan

Lee Sung Yeon

Pyo Ye Jin

Kim Ji Ah

Kim Hye Ok

Mrs. Choi [Young Joon's mother]

Kim Byung Ok

Chairman Lee [Young Joon's father]

Kang Ki Young

Park Yoo Shik

Kang Hong Suk

Yang Cheol [Young Joon's secretary]

Hwang Chan Sung

Go Gwi Nam

Kim Ye Won

Sul Ma Eum [Yoo Shik's secretary]

Lee Yoo Joon

Jung Chi In

Hwang Bo Ra

Bong Se Ra

Baek Eun Hye

Kim Pil Nam [Mi So's oldest sister]

Heo Soon Mi

Kim Mal Hee [Mi So's second oldest sister]

Kim Jung Woon

Park Jun Hwan

Lee Jung Min

Lee Yeong Ok

Moon Woo Jin

Lee Young Joon / Lee Sung Hyun [Young]

Kim Ji Yoo

Kim Mi So [Young]

Bae Gang Yoo

Lee Sung Yeon [Young]