Mr. Duke is a 2000 South Korean television series by MBC about an heiress who hires a poor man who becomes her husband. Plot Soo-jin Jang's rich and powerful father tricks her into returning to Korea so that she can be married and provide him with a successor to his business empire. Desperate to stop her father's madness, Soo-jin pretends she already has a boyfriend, and so enlists the help of simple water deliveryman, Kim Yong-nam (Kim Seung-woo). She must pass Yong-nam off as a member of high society if she is to stop her father's plans. Cast Kim Seung-woo as Kim Yong-nam Choi Ji-woo as Jang Soo-jin Myung Kye-nam as Myung Gi-nam Kim Byung-se as Kang Sung-il Choi Jung-yoon as Joo Eun-ha Lee Soon-jae as President Jang Hong Kyung-in as Baek Kwang-soo Lee Kye-in as Department head Jo Park Yeong-gyu as Jang Soo-chul Choi Ran as Park Ae-ja Na Moon-hee Kim Chang-wan Kim Dong-hyun as a pizza delivery guy See also List of Korean television shows Contemporary culture of South Korea References External links , MBC Guide, July 2000 SPCNet Review MBC TV television dramas 2000 South Korean television series debuts 2000 South Korean television series endings Korean-language television shows South Korean romantic comedy television series