When their circus tickets get swiped, the Jönsson League boys hatch a plan to steal them back, but end up suspects in an even bigger crime!
| Actor | Role |
|---|---|
 Robert GustafssonKanonkulan | Kanonkulan |
 Johan RabaeusThe clown | The clown |
 Ulla SkoogThe Sword Swallower | The Sword Swallower |
 Loa FalkmanDirector Wall-Enberg | Director Wall-Enberg |
 Peter HarrysonThe Tivoli director | The Tivoli director |
| KKalle ErikssonCharles Ingvar 'Sickan' Jönsson | Charles Ingvar 'Sickan' Jönsson |
| JJonathan FlumeeVanheden | Vanheden |
| FFredrik GlimskärHarry | Harry |
| JJonna SohlmérDoris | Doris |
 Micke DuboisLoket | Loket |
 Orlando FaginThe bearded lady | The bearded lady |
| AAnders ÖströmJunior | Junior |
| MMats WennbergBiffen | Biffen |
| MMaria WeisbyLillian Wall-Enberg | Lillian Wall-Enberg |
| IIsak EkblomSven-Ingvar Jönsson | Sven-Ingvar Jönsson |
 Olof ThunbergMorfar Ellis | Morfar Ellis |
 Niklas FalkNot listed | Not listed |
 Cecilia NilssonNot listed | Not listed |
| FFreja BerglundNot listed | Not listed |
| EErik LindmanNot listed | Not listed |
| CCarl SvernlövNot listed | Not listed |
 Stefan ThunbergNot listed | Not listed |
| PPer MellanderNot listed | Not listed |
| AAgneta AhlinNot listed | Not listed |
| KKicke FaginNot listed | Not listed |
| AAnna-Therese EivindsdottirNot listed | Not listed |