When two boys on their BMX bikes and their Speedway racing Dad, come up against a notorious crime boss and his criminal gang who have stolen a hoard of Diamonds from England’s Largest Castle, a chain of events is set off that will change their lives forever...
| Actor | Role |
|---|---|
| RRory FordSam Harris | Sam Harris |
| FFelix FordJake Harris | Jake Harris |
 Howard J. FordMichael Harris | Michael Harris |
 Jon CamplingVladislav, The Boss | Vladislav, The Boss |
 Russell ShawSimpson | Simpson |
 Glenn SalvageReynolds | Reynolds |
 Angela DixonLucy Harris | Lucy Harris |
| RRuben PolKevin Jenkins | Kevin Jenkins |
 Flip WebsterMrs. Simpson | Mrs. Simpson |
 Richard BanksOfficer Wimbourne | Officer Wimbourne |
| AAnthony ArundellJasper Tweeks | Jasper Tweeks |
 Lee Nicholas HarrisD C Warrick | D C Warrick |
| SSharon LawrenceD C Dalton | D C Dalton |
| SSorcha BrooksLady Hurst | Lady Hurst |
 Sarah MaddocksD C Pierce | D C Pierce |
| LLaura SavageSchool Teacher | School Teacher |
| NNelson E. WardButler Stevenson | Butler Stevenson |
| FFiona GentNews Reporter | News Reporter |
| DDave LeeSpeedway commentator | Speedway commentator |
 Renato PiresMike the Mechanic | Mike the Mechanic |
| RRobert CohenJail Officer Mason | Jail Officer Mason |
 Justin HaywardDetective Hector | Detective Hector |
 Jonathan HanslerOfficer Cook | Officer Cook |