Completed
Go Nanhee - MC with long blonde hair
Oh Deokhoo - ML; shabby guy with stubble and glasses; development director
Mrs. Jang - Deokhoo’s mother; sharp middle aged woman with glasses
Jiae - girl with short black hair
Suyeon - Deokhoo’s almost past-girlfriend with pink hair
Seo Bunam - cleaning guy with light brown hair
Kim Jeomsook - most senior cleaner with shoulder length black hair (minor character)
The Girl and the Geek