Wilfredo Arrabal

 is a minor character featured in Red Dead Redemption.

Background
Wilfredo appears to be an officer in the Mexican Army.

Red Dead Redemption
Wilfredo can often be seen patrolling Escalera, El Matadero, or El Presidio. However, if Marston has a bounty, Wilfredo will track him to multiple locations around Nuevo Paraiso.

Undead Nightmare
In Undead Nightmare, Wilfredo can be found patrolling El Presidio and commanding the soldiers there.