Choi Daniel as Nam Chi Won, the head of HB’s video operations division who worked his way to the top through hard work and determination. He doesn’t talk very much, has no interest in others, and is cold to everyone but has an odd charm that draws women to him.

Baek Jin Heee as Jwa Yoon Yi, a bright and affable secretary who’s amazing at her job and acknowledged by everyone around her as a “tailor-made supporter sent down from the heavens.” She loves to talk and has never lost an argument a day in her life, and she’s quick to adapt and knows how to get by in any situation. She’s also the system operator of Jugglers, an online community of secretaries named for their multi-tasking abilities.

Kang Hye Jung as Wang Jung Ae, a housewife of 15 years who becomes Hwang Bo Yool’s secretary. She is so kind that it worries people around her, because she’s willing to believe anything that people say. She decides to get a job after being a housewife for so long because her husband goes hiking early one morning and never returns.

Lee Won Geun as Hwang Bo Yool, the head of the sports division. He is the youngest grandson of the company’s founder and he is the black sheep of the family who is always causing trouble.

Supporting Cast
Hong Kyung as Jwa Tae Yi
Jung Soo Young as Moon Sun Young
Kim Chang Wan as Doo Tae Geun
Kim Ki Bang as Park Chi Soo
Cha Soon Bae as Park Sun Bae