The Dalton brothers are to receive their dead uncle's fortune if they eliminate the judge and jury responsible for his execution. And to accomplish this task, they must enlist the help of Lucky Luke.
| Actor | Role |
|---|---|
 Daniel CeccaldiLucky Luke (voice) | Lucky Luke (voice) |
 Georges Atlas(voice) | (voice) |
 Roger CarelMin Li Foo / Mathias Bones (voice) | Min Li Foo / Mathias Bones (voice) |
 Jacques BalutinWilliam Dalton (voice) | William Dalton (voice) |
 Xavier Depraz(voice) | (voice) |
 Jacques DeschampsBud Bugman (voice) | Bud Bugman (voice) |
 Bernard HallerRantanplan | Rantanplan |
 Jacques FabriThadeus Collins | Thadeus Collins |
 Gérard HernandezJack Dalton | Jack Dalton |
 Jacques LegrasAugustus Betting | Augustus Betting |
 Jean-Marc ThibaultDocteur Aldous Smith | Docteur Aldous Smith |
 Pierre TornadeAverell Dalton | Averell Dalton |
 Pierre TrabaudJoe Dalton | Joe Dalton |
 René GoscinnyJolly Jumper | Jolly Jumper |
 Michel EliasPlume de Serpent | Plume de Serpent |