연애세포

Park Sun-ho

Ma Dae-chung

Kim You-jung

Ne-bi

남지현

Seo-rin

백성현

Chun Ji-woon

Oh Kwang-rok

Seo-rin's manager

임슬옹

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