- "Yo, Skinny, I'm up here on 2nd and Hazeltine, getting eyeballed hard."
- ―Combo shortly before his death.
Christian Ortega, commonly referred to as Combo, was one of Jesse Pinkman's longtime friends who also doubled as a dealer for his meth.
Combo appears in Jesse Pinkman's house, along with Skinny Pete, getting high, he notices that Jesse's ceiling has fallen apart, due to Jesse and the Emilio Koyama incident and him and Pete get Jesse to do drugs again, although Jesse refuses at first, saying they are making him paranoid. ("Cat's in the Bag...")
- "And you should've seen the coffin. It was like this shiny white pearlescence, like I'm pretty sure I seen the exact same paint job on a Lexus, right? So we're definitely talking high end."
- ―Skinny Pete describing Combo's funeral.
Combo reunites with Jesse, along with Skinny Pete and Badger, where they work as a team, led by Walter White - who he knows as "Heisenberg." However, their team faces trouble when Badger is caught by an undercover cop. Furthermore, as Combo was selling meth on a street corner, a young boy came up to him and shot him point blank on the orders of two rival dealers sitting in a nearby car as part of a territorial dispute. Bleeding, Combo ran into the street while the child continued to shoot him, and collapsed in a pool of blood shortly thereafter. Skinny Pete later attended his funeral.
It is revealed via flashback that it was Combo who provided Jesse with the RV which he and Walt began using to cook their product. The RV belonged to Combo's mother until he stole it and sold it to Jesse ("Más"). Combo's mother didn't report the RV stolen because she didn't want to get her son into trouble.
His death would later be avenged when Tomas was killed by the Rival Dealers after being told by Gus to cease using children and also when the Rival Dealers themselves were killed by Walt to protect Jesse.