Giancarlo Esposito plays Gus Fring on “Better Call Saul” and its much beloved predecessor “Breaking Bad.” Fring is Albuquerque's favorite fried chicken magnate. But his true character is a ruthless crystal meth kingpin. The fourth season of “Better Call Saul” started a few weeks ago. Esposito promises we’ll learn more about the mysterious Gus over the next few episodes.