Three 13-year-olds start a detective agency and in solving their first case, learn about friendship and courage.
| Actor | Role |
|---|---|
| MMathilde Wedell WedellsborgMathilde | Mathilde |
 Marcuz Jess PetersenGustav | Gustav |
 Frederik Winther RasmussenNot listed | Not listed |
 Beate BilleNot listed | Not listed |
 Jonas SchmidtNot listed | Not listed |
 Alexandre WillaumeNot listed | Not listed |
| EEmma CarlarNot listed | Not listed |
 Søren PoppelNot listed | Not listed |
 Lisa LentsNot listed | Not listed |
 Jens AndersenNot listed | Not listed |
 Henning Valin JakobsenNot listed | Not listed |
 Camilla GottliebNot listed | Not listed |
 Timm VladimirNot listed | Not listed |
 Henrik TrenskowNot listed | Not listed |
| TTaina Anneli BergNot listed | Not listed |
 David SakuraiNot listed | Not listed |
 Lasse LunderskovNot listed | Not listed |
 Rebekka OweNot listed | Not listed |
| SSara QvistNot listed | Not listed |
 Jakob Bjerregaard EngmannNot listed | Not listed |
 Paw HenriksenNot listed | Not listed |
 Adam BrixNot listed | Not listed |
| SStephanie NathanNot listed | Not listed |
| TThomas HansenNot listed | Not listed |
| LLars Stegman OlsenNot listed | Not listed |
 Ole DupontNot listed | Not listed |
| LLars KnudsenBartender | Bartender |