With the peak of his career long behind him, an actor clings to his past glory — until a sudden wake-up call forces him to face who he's become.
You can now watch What Happened to Mr Cha? online on the following streaming providers in the United States.
| Directing | Kim Dong-gyu | Director |
| Writing | Kim Dong-gyu | Writer |
| Production | Ki Won-gyu | Executive Producer |
| Production | Kim Seong-hwan | Executive Producer |
| Production | Lee Jong-seok | Producer |
| Camera | Yun Nam-joo | Director of Photography |
| Lighting | Jeong Duk-hee | Lighting Director |
| Art | Lee Jong-geon | Production Design |
| Art | Nam Seong-ju | Set Decoration |
| Costume & Make-Up | Yang Jin-sun | Costume Design |
| Costume & Make-Up | Lee Myeung-eun | Makeup & Hair |
| Editing | Ha Mi-ra | Editor |
| Sound | Choi Seung-hyun | Original Music Composer |
| Sound | Sung Jae-hyun | Sound Supervisor |
| Sound | On Se-woong | Production Sound Mixer |
| Production | Park Yu-gyeong | Line Producer |
| Directing | Baek Sang-il | Assistant Director |
