Lucky Luke – A
cowboy who can shoot faster than his own shadow. One of the most respected cowboys on the plains.
The Dalton Brothers – A notorious outlaw gang composed of Joe, William, Jack and Averell Dalton.
Jolly Jumper – Luke's loyal and intelligent horse.
Rin Tin Can – A dimwitted prison guard dog who follows Luke and the Daltons around.
Henry Dalton – Deceased uncle to The Dalton Brothers. Amassed a fortune from his life of crime. Was found guilty and hanged for his crimes.
Augustus Betting – The notary who tasks the Daltons with fulfilling Henry's will. His name is a pun on
abetting.
The court and the jury Ming Li Foo – The first juror. A
Chinese laundryman who lives in Grass City. After he takes the Daltons' clothes to wash, Luke finds him on the street and, following a brief misunderstanding, helps him fake his death at Luke's hands.
Thadeus Collins – The second juror. A jail warden whose compassionate attitude towards his prisoners led to all of them escaping. Luke helps him leave through one of the jail's many escape tunnels, then tricks the Daltons into "killing" him by blowing the jail up.
Snake Feather – The third juror. A
Native American witch doctor living in the Desert of Thirst. He offers the dehydrated Daltons water laced with
hallucinogenic mushrooms. When they come to, Luke claims they killed him.
Dr. Aldous Smith – The fourth juror. A traveling
quack doctor who claims to have a miraculous elixir
that can cure every disease. Luke convinces Joe that Smith's drink is a deadly poison and Joe forces him to take it, which simply makes him pass out from
intoxication. The character's appearance is modeled after American actor
W.C. Fields. '''Tom O'Connor''' – The fifth juror. An old miner who hasn't been seen out of his
gold mine in years. He shoots at the approaching Daltons, but Luke manages to disarm him and explain the situation. Luke leads the Daltons on a high speed mine track ride at the end of which O'Connor awaits, disguised as a ghost. The terrified Daltons flee the mine, believing O'Connor to be already dead.
Sam Game – The sixth juror. A former notorious card sharp who has become a
clergyman incorporating gambling terms in his sermons. He persuades the Daltons to let him kill himself by playing
Russian roulette, only to then privately reveal to Luke that his gun "miraculously" shot
blanks.
Steve Bugman – The seventh juror. A
train driver. The Daltons derail his train, but Luke manages to reach him before they do. By the time the Daltons catch up, Bugman's assistant claims that he and Luke quarreled and Luke threw him off the train.
Mathias Bones – The eighth juror. A morbid
undertaker who is constantly looking out for his next customer. Luke helps him fake his departure from town, and the Daltons shoot a dummy on his
hearse. This character's appearance is modeled after actor
Boris Karloff.
Judge Groovy – The judge who sentenced Henry Dalton to death, currently officiating at a
rodeo. Luke manipulates the Daltons into nominating Averell to participate in the rodeo so as to get close to the judge. After the rodeo leaves the already dimwitted Averell in a daze, Luke leads the Daltons to believe that he successfully killed the judge. ==Published versions==