Kim Da-hee Director, Animator Yoon Ah-yeong Yoo-mi Voice Shin Beomsik Bobby Voice Song Harim Da-eun Voice Ahn Soyi Love Cell Voice Sa Moon-young Anxiety Cell Voice Lee Seul Author Cell Voice Park Ji-yoon Emotion Cell Voice Shim Kyu-hyeok Reason Cell Voice Um Sang-hyun Hysterious Cell Voice Lee Dong-gun Writer Kwon Mi-kyung Producer