Yoon Jihoo-Kim hyun Joong

Gu Songbin-Krystal Jung

Choi Young do-Kim Woo bin

Gu Junpyo-Lee min ho

Geum Jandi-Goo hye sun

So Yi Jung-Kim beom

Song Woo bin-Kim Joon

Chu Gaeul-Kim so eun

Gu Eunbyul (Songbin's sister)-Song Hye Kyo

Gu Boyoung (Songbin's sister)-Kim Ji Won

Gu Junhee (Joonpyo's sister)-Kim Hyunjoo

Song Won Woo(Song Woo bin's brother)-Kim Soo hyun

Min Seo Hyun (Jihoo's first love)- Han Chae Young

Gu Min Joon(Song bin's father)-So Ji Sub

Hye son (Song bin's mother)-Ha Ji Won