Beatrice Arthur, the tall, deep-voiced actress who considered herself lucky to be discovered by television executives after a long stage career that included a Tony award for the musical “Mame,” died Saturday at age 86. The star of the TV shows “Maude” and “The Golden Girls” died peacefully at her Los Angeles home with her family at her side, family spokesman Dan Watt said. She had cancer, he said, but declined to give details. “She was a brilliant and witty woman,” said Watt, who was Arthur's personal assistant for six years. Arthur first appeared in the landmark comedy series “All in the Family” as Edith Bunker's outspoken, liberal cousin, Maude Finley. She proved a perfect foil for blue-collar bigot Archie Bunker (Carroll O'Connor), and their blistering exchanges were so entertaining that producer Norman Lear fashioned Arthur's own series. In a 2008 interview with The Associated Press, Arthur recalled with bemusement being discovered by CBS executives asking about the new “girl.” “I was already 50 years old. I had done so much off-Broadway, on Broadway, but they said, `Who is that girl? Let's give her her own series,”' Arthur said. “Maude” scored with television viewers immediately on its CBS debut in September 1972, and Arthur won an Emmy Award for the role in 1977. When Arthur was 11, her family moved to Cambridge, Md., where her father opened a clothing store. At 12 she had grown to full height, and she dreamed of being a petite blond movie star like June Allyson. There was one advantage of being tall and deep-voiced: She was chosen for the male roles in school plays. Arthur is survived by her sons and two granddaughters.