Commander Quinteros was a male Human Starfleet officer who lived during the mid-24th century.

Quinteros served at the Utopia Planitia Fleet Yards in the Sol system and supervised the construction of the starship USS Enterprise-D, until its launch in 2363.

In 2364, Quinteros was the base commander of Starbase 74. When the Enterprise visited the space station, Quinteros introduced the Bynars to Captain Jean-Luc Picard and Commander William T. Riker. The Bynars were attached to starbase maintenance. They were tasked with upgrading, or improving, the holodeck and other computer systems. (TNG: "11001001")

Near the end of 2364, Commander Quinteros' name was mentioned in a mission order that was read by Data, who was investigating the possibility of a conspiracy in Starfleet Command. (TNG: "Conspiracy", okudagram)

Commander Quinteros was played by Star Trek veteran Gene Dynarski. According to the final draft of the script, his first name was Orfil. The first draft script calls him Maintenance Supervisor Tully.