Maria O’Brien Dies: ‘Protocol’ & ‘Matlock’ Actress Was 75
Terry McDonell/WWD/Penske Media via Getty Images
Maria O’Brien, the actress best known for her roles in Protocol and Matlock, is dead at 75.
On February 24, O’Brien died—although her cause of death was not publicly shared—multiple outlets, including The Hollywood Reporter and Variety, reported.
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