Main •
Lee Yeon-hee as Yoon So-so :A tour guide of group of people. •
Jung Yong-hwa as San Ma-roo :A man who got betrayed by his girlfriend and goes on a trip by himself.
Supporting Tourists •
Choi Woo-shik as Kim Gyung-jae :An office worker who has dated his girlfriend for 7 years. • as Han So-ran :Gyung-jae's girlfriend, a web designer who is contemplating between dating and marriage. •
Ryu Seung-soo as Jung Yeon-sung :A man whose relationship to his partner is a mystery. •
Park Yoo-na as Jung Na-hyun :Yeon-sung's daughter, whose age can't be guessed. • as Oh Gab-soo :A stubborn old man who always picks fights. •
Lee Ji-hyun as Han Book-ja :Gab-soo's wife, a woman who cared for her husband her whole life until she got sick. •
Yoon Park as Yoon Soo-soo :So-so's younger brother, who chases after her.
Others •
Jang Seung-jo as Bae Hyeong-goo, Yoon So-so's ex-husband. • as Kim Tae-young • as Oh Ye-bi, San Ma-roo's girlfriend. • as Department Head • •
Jung Hee-tae as San Ma-roo's colleague. •
Yang Dae-hyuk as Staff, Lohas Finance Education Center • as Byung-se •
Hwang Young-hee as Yoon So-so's mother •
Lee Han-wi as Yoon So-so's father •
Jang Hee-ryung as Han Doo-ri, Su-su's fiancée • as Doo-ri's father •
Kim Young-sun as Doo-ri's mother
Special appearances •
Sung Dong-il as So-so's boss •
Lee Young-ja as Woman in the airport (ep. 1) •
Lee Seung-joon as Doctor (ep. 3) ==Production==