 Genevieve O'ReillyPrincess Diana | Princess Diana |
 Patrick BaladiDodi Al Fayed | Dodi Al Fayed |
 Carlo FerranteHenri Paul | Henri Paul |
 Nadim SawalhaMohamed Al Fayed | Mohamed Al Fayed |
| CCharlie MantonPrince Harry | Prince Harry |
 Shaun DooleyTrevor Rees Jones | Trevor Rees Jones |
 James BarriscaleKez Wingfield | Kez Wingfield |
 Wilfred BenaïcheClaude Rouiet | Claude Rouiet |
| JJake Taylor ShantosPrince William | Prince William |
 Simon LenaganPaul Burrell | Paul Burrell |
 Annabelle WallisKelly Fisher | Kelly Fisher |
 Richard CliffordDerek Deane | Derek Deane |
| JJohn WarnabyRichard Kay | Richard Kay |
 Bruno OuvrardJean-François Musa | Jean-François Musa |
 Annabel MullionRosq Monckton | Rosq Monckton |
 François DomangeThierry Rocher | Thierry Rocher |
 Emily StottMyriah Daniels | Myriah Daniels |
| DDerek DeaneSelf - Artistic Director, English National Ballet | Self - Artistic Director, English National Ballet |
| MMohamed Al-FayedSelf - Dodi's Father | Self - Dodi's Father |
| KKen WingfieldSelf - Al Fayed Bodyguard | Self - Al Fayed Bodyguard |
| PPaul BennettSelf - Picture Editor, The Sunday Mirror | Self - Picture Editor, The Sunday Mirror |
| BBridget RoweSelf - Editor, The Sunday Mirror | Self - Editor, The Sunday Mirror |
| MMyriah DanielsSelf - Dodi's Personal Therapist | Self - Dodi's Personal Therapist |
| CClaude GarrecSelf - Best Friend of Henri Paul | Self - Best Friend of Henri Paul |
| SScott DavidsonRene (uncredited) | Rene (uncredited) |
| MMichael ThompsonJournalist (uncredited) | Journalist (uncredited) |
