As a youth, Quark was a sidekick to the super-hero Starfighter.
Years later, long after his crimefighting days were done, Charlie pursued acting as a career. He was cast on a sitcom, called The Secret. The show focused on a group of friends, with the twist that one them was secretly a superhero. During an interview promoting the show, the now adult Charlie Provost insisted that Quark was not a sidekick at all, but rather Starfighter's full partner.
According to Starfighter, he trained Charlie to master the Cosmic Lorus, however during his crimefighting career he was known to use brutal methods, prompting Starfighter to wipe his knowledge of the Lorus from his mind. Since then he earns a living appearing at conventions.
Cosmic Lorus: According to Starfighter he could use the Lorus even sense it. However he could only memorize the patterns and had no real connection to them.