Javier Escuella

 is a supporting character featured in Red Dead Redemption. He is a minor antagonist and former gang member alongside John Marston. Escuella is responsible for sheltering Bill Williamson in Nuevo Paraiso. He is noted as one of the few Mexican characters that speaks English without a strong accent.

Background
Javier Escuella was once a Mexican revolutionary. After spending some time in America, Escuella became a member of Dutch's Gang. When Dutch's gang was disbanded and Marston is forced to pursue them in 1911, both Williamson and Escuella pay the Mexican army for protection from Marston. It is also suggested that Javier worked with the Mexican government as stated in the cutscene between John and Javier in the mission The Gates of El Presidio. Javier, after a short chuckle, says:

"So now you do the government's work?"

"And what do you do? You just work for a different government," Marston replies

Red Dead Redemption
Prior to John's assault of Fort Mercer, Javier helps Bill to escape to Nuevo Paraiso and assists him after the assault in fleeing the fort. After Allende's betrayal, Javier is caught by John, who has a choice of capturing or killing him.

Trivia

 * Escuella and Archer Fordham are the only antagonists that the game gives you the option of sparing. Javier is the only antagonist you can capture.
 * In both Red Dead games there has been one antagonist named Javier: General Javier Diego was in Red Dead Revolver.
 * It's unlikely that Escuella survives for very long after you hand him over to the authorities, as it is suggested by Marston that he will be hanged. This makes it unlikely that any of Dutch's old gang survived the events of Red Dead Redemption.
 * Javier shares the same surname, Escuella, with one of the main mission givers, Manny Escuela, in Rockstar's previous sandbox game: the highly successful Grand Theft Auto IV. If the characters are related in some way has yet to be confirmed or denied by Rockstar. Though it is unlikely due to the fact that Manny Escuela is Puerto Rican and because their last name is spelled differently Javier's is spelled with two Ls.