Daichi Harashima plays a kid fed on genetically engineered food produced by a company called "Superkid", thus having far higher IQ than kids of his age while suffering from mania.
| Actor | Role |
|---|---|
| CCho Jeong-EunNot listed | Not listed |
 Daichi HarashimaNot listed | Not listed |
| CCrystal Tin Yue-LaiChole | Chole |
 Gordon Lam Ka-TungNot listed | Not listed |
 Eunis Chan Ka-YungNot listed | Not listed |
| AAmy Yan Yan-NaNot listed | Not listed |
 Lam Chiu-WingNot listed | Not listed |
| TTong Wai-KeiNot listed | Not listed |
| LLam Chi-PaoNot listed | Not listed |
| LLee Ka-FaiNot listed | Not listed |
 Fanny Lee Man-FanNot listed | Not listed |
 Kitty Yuen Siu-YeeNot listed | Not listed |
 Joe Cheung Tung-ChoNot listed | Not listed |
| AAbe Kwong Man-WaiNot listed | Not listed |
 Ben Yuen Foo-WahNot listed | Not listed |