Kim Ji-hoon
— Lee Gwang-Jae
김주현
— Kim Young-Ha
이규한
— Nam Tae-Il
홍수현
— Kim Kyung-Ha
Woo Hyun
— Choi Hyo-Dong
이승연
— Nam Soo-Hee
김민규
— Kim Myung-Ha
Jeon Soo-kyung
— Na Young-Ae
Yoon Yoo Sun
— Park Hyun-Sook
Jeong Bo-seok
— Kim Won-Yong
강남길
— Lee Gye-Dong
Kim Young-ok
— Park Soon-Ok
차서원
— Choi Yong Yi [Yeong Ha's neighbor]
미람
— Kim Sun Young
윤철형
— Chairman Nam Soo Hwan [Nam Soo Hee's brother]
Elkie Chong
— Wang Mong Mong [Transfer Student]
박순천
— Bok Soon
Park Jae-jung
— Kim Jong Yong [Yeong Ha's uncle]
심은진
— Myung Sun [Jong Yong's wife]
Yang Hye-ji
— Park Seo Hee [Yong Yi's sister]
Go Yoon
— Hyun Bin [Kyung Ha's boss]
Choi Na-Moo
— [Restaurant staff]
Kim Byeong-se
— Park Beom Joon
Ju Min Chan
— [Car salesman]
조서연
— Yoon Ji
원종례
— [Hyun Bin’s Mother]
Kim So-ra
— ["Handbag" girlfriend]
이윤상
— [funeral attendee]
Sung Chan-ho
— [Reunion classmate]
문경민
— [reunion classmate]