Hee-won as Jang Yeo-sa A strange but kind-hearted couple manager who claims to have been in the matchmaking business for twenty years. Yeo-sa hates to be called old and asks everyone to call her Mrs. Jang. She always carries an umbrella with her due to a man she has been waiting for, for twenty years. She joins "Team Zero" and later becomes a part of "Zero Base." Park Hee-jin as Min-ha Jay Kim as Kim Doo-hyun Lee Kyung-eun as Oh Soo-jung Yang Bae-chu as Jung Do-ryung Kim Jung-do as Hyung-suk (ep 2) Go Yoon-hoo as Baek Do-hoon (ep 7) Kang Yoo-jin Lee Hyung-suk International broadcast It aired in Thailand on Modernine TV from January 27 to February 29, 2012, dubbed as Borisus Jadrak Huajai Kukkik. ("บริษัทจัดรักหัวใจกุ๊กกิ๊ก", literally: Tinkle Heart Company). It aired in Vietnam on VTV3 from September 7, 2014 dubbed as Biệt đội số 0. References External links Romance Zero official MBC Dramanet website Korean-language television shows MBC TV television dramas 2009 South Korean television series debuts 2009 South Korean television series endings Television series by Bon Factory Worldwide