Cast & crew
Devil's Diary · Season 1
Nobody is recorded for this season on its own, so this is the whole show's cast.
Cast
| Han Joo-wan | Biggest Devil |
| Lee Si-won | Ra |
| Lee Ki-wook | Yoon Bom |
| Ko Kyu-pil | Jong |
| Choi Dae-sung |
Devil's Diary · Season 1
Nobody is recorded for this season on its own, so this is the whole show's cast.
| Han Joo-wan | Biggest Devil |
| Lee Si-won | Ra |
| Lee Ki-wook | Yoon Bom |
| Ko Kyu-pil | Jong |
| Choi Dae-sung |