Arthur Morgan is the protagonist of Red Dead Redemption 2 (2018): Dutch van der Linde's right-hand man, taken in by the gang as a teenager. Over the game's six chapters, as the gang falls apart, he contracts tuberculosis and turns against Dutch. He dies at the end of chapter 6, in a way that depends on his honor and a final choice. Roger Clark plays him.

Arthur lost his parents young and was taken in by Dutch van der Linde at 14, becoming Dutch's first protégé. He once had a relationship with Mary Linton that did not last.
| Chapter | What happens |
|---|---|
1. Colter | After the failed Blackwater ferry robbery, the gang flees into the mountains; Arthur attacks the O'Driscoll camp and robs Leviticus Cornwall's train |
2. Horseshoe Overlook | Camp near Valentine and a shootout with Cornwall's men. Collecting a debt, Arthur gets blood coughed in his face by Thomas Downes, who has tuberculosis |
3. Clemens Point | The Gray and Braithwaite feud; Arthur is captured by Colm O'Driscoll during a fake truce and escapes |
4. Saint Denis | The Saint Denis bank robbery fails and the gang ends up shipwrecked |
5. Guarma | Arthur fights alongside Hercule Fontaine's rebels on the island of Guarma |
6. Beaver Hollow | Diagnosed with tuberculosis, Arthur frees John from prison against Dutch's wishes, rescues Abigail, learns Micah is the traitor and turns on Dutch |

Arthur always dies at the end of chapter 6, in the mission Red Dead Redemption. How he dies depends on his honor and on whether he chooses to help John escape or go back for the gang's money:
| Choice | Honor | Ending |
|---|---|---|
Help John | High | After a fight with Micah, Arthur dies peacefully watching the sunrise |
Help John | Low | Micah shoots Arthur in the head |
Go back for the money | High | Arthur fights Micah with knives, cuts his eye, and dies watching the sunrise |
Go back for the money | Low | Micah stabs Arthur in the back |
Dutch was a father figure and Hosea a mentor; John Marston was like a brother. Sadie Adler and Charles Smith became close allies, and Micah Bell his enemy. Their profiles: Dutch, Hosea, Sadie, Charles, Micah and John Marston.
The rest of the gang, with their actors, is on our Red Dead Redemption 2 characters page, and every mission on the missions page.