But no role made him as instantly recognizable to millions of viewers as his Hector in Vince Gilligan’s critically acclaimed AMC series “Breaking Bad,” starring Bryan Cranston, Aaron Paul, Anna Gunn and Giancarlo Esposito, and its prequel, “Better Call Saul,” with Bob Odenkirk and Rhea Seehorn. The role, in “Breaking Bad,” brought him an Emmy nomination in 2012 for outstanding guest actor in a dramatic series. His Hector, or Tio, was indelible. Despite his lack of dialogue in “Breaking Bad,” Mr. Margolis proved a scene stealer from his wheelchair, his eyes bulging, his face trembling with rage, despite the nasal cannula pumping oxygen up his nose and his palm furiously banging his bell, taped to an arm of the chair, whenever he needed attention. “I tell people I’m the second-most famous bell ringer after Quasimodo,” he said in a 2016 interview with Vulture, New York magazine’s culture site.

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Persons: Hector, Vince Gilligan’s, ”, Bryan Cranston, Aaron Paul, Anna Gunn, Giancarlo Esposito, Saul, Bob Odenkirk, Rhea Seehorn, Walter White, Cranston, ” Mr, Margolis, “, Quasimodo Locations: New Mexico, , New York