Role in the Film
Butch Cavendish was the boss of Latham Cole and he was responsible for the death of John's brother Dan Reid. He and his men kill all the Texas Rangers, and Butch personally killed Dan. He cuts Dan open and devours his heart. When John saw this, he vowed to take Butch to justice. Butch and Latham were also responsible for the extermination of Tonto's people.
Early in the film he is being transported by train back to town, supposedly so he can be hanged. However using a gun hidden on the train he kills his guards and almost kills Tonto (who is also on the train, purely for the purpose of killing Cavendish). Hearing the comotion, John Reid breaks his way in. But Cavendish holds him at gun point. Tonto however grabs another gun and holds it up against his head, planning to kill him for what he did to Tonto's village. But John stops him, so that he can be tried in a court of law. He then chains him back up, before emptying the gun, declaring theres no place for guns where this train is headed. When asked where that is by Butch, he replies "the Future." At that momment however, Cavendish's gang break in and free him. Cavendish has John chained up and leaves him on the train, which his men had set to crash. Before escaping with his men. Following stagging several Commanche attacks, he kidnapps Rebbeca and Danny (The Long Rangers brother's wife and son). It is here at his camp he first hears the stories of a mystical "ranger" who killed two of his men with one bullet from one his men, Frank who encountered John and Tonto. Although his gang is scared, Butch dismisses the stories of Dan Reid's ghost returning to get him and orders one of his men to shoot Rebbeca and Danny. Sympathising with them the man fakes it and tells them to run. Only for them to be found by Cole. Later at the mine, he forces the workers to work mining all the silver. When told there afraid and there has been a cave in, he simply shoots the man who was complaining and tells them to get back to work. He also savagely beats one of his own men down when he suggests they simply take all the silver they have and leave pointing out there already rich, declaring he "wants it all". However following suspicious goings on, he sends one of his men into the mine. When he doesn't come back he sends two more, they don't come back, but a mine car does. Suspicious he and his men shoot at it before investigating and discovering it to contains lit Dynamite. The explosion killed his men, and disabled him. Captured by the Lone Ranger and Tonto, he mocks the Ranger declaring he's as alive as he is, and no different from him just another "man wearing a mask". Angirly The Ranger beats him with his gun for what he did to his brother. Tonto tries to kill him, but still wanting him to face justice not vengence and disilusioned from Tonto's stories, the Ranger takes him away. Leading him through the desert, his hands tied and pulled by the Rangers horse. Eventually the Ranger finds Cole and gives Butch over to him so he can be tried in accordance with the law and have justice. However as Butch was secretly working for Cole, Cole lets him loose later. Where he recaptures Rebbeca when she escapes. Then in a several way gun confrontation he recaptures the Ranger. However following a real Commanche attack and Tonto breaking in to save The Ranger they are forced to leave. Wising up to the fact that they're both difficult to kill, Butch throws kerosene and lit dynamite down the passage way after them, deciding that should kill them, before leaving. Unaware they managed to survive the explosion. At Coles hostile take over of the Railroad corporation, Cavendish grabs Rebbeca and takes her to the board meeting, and helps Cole hold the other share holders at gun point, so they are forced to appoint him the new chairman (Cole having already shot the previous on in the back). However at that point, Tonto steals the train carrying the silver. Cole and Cavendish chase after in another train, while the Ranger on Silvers back chases after them across the top of the train.
Following a lengthy chase (in which both Cole and Fuller are killed), Butch manages to regain the silver and finally confronts Tonto at gunpoint planning to kill him. However, the Lone Ranger manages to shoot the gun out of his hand (from the top of the cliff on Silvers back, with his last bullet, which happens to be the Silver bullet Tonto made to kill the "Wendigo" earlier) saving his friend. Tonto knocks Butch down, holds him at gunpoint with his own gun and then throws back the cheap pocket watch which Cole had paid him 26 years earlier in return for showing him and Cavendish the location of the silver, telling him it was a "bad trade." Tonto jumps onto the other car and detaches the carriage between them. The train, with Butch on it, goes over the train track bridge, which the Lone Ranger and Tonto had previously blown up (ironically with Latham's own explosives which he used to illegally mine the silver), causing the the train to plummet into the river. Butch tries to get to the surface, but he gets crushed by the very same silver that he greedily took and murdered for, and dies in a watery grave.