Park Sun-ho

Ma Dae-choong

Kim You-jung

Navi

Son Ji-hyun

Seo-rin

Baek Sung-hyun

Chun Ji Woon

Oh Kwang-rok

Seo-rin's manager

Im Seul-ong

Park Tae-joon

Cho Bo-ah

Ye Bom

Jang Hyuk

Dae Chung's neighbor

Kim Woo-bin

Love Cell Hunter/King of romance

Yeom Hye-ran

Dae Chung's landlord