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Cobb is buried in Mount Sinai Memorial Park in Los Angeles.
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Cobb was nominated for a Golden Globe Award for Best Supporting Actor twice: once in 1958 for 12 Angry Men and again in 1964 for Come Blow Your Horn.
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Cobb was nominated for an Academy Award for Best Supporting Actor twice: once for On the Waterfront in 1955 and a second time for Brothers Karamazov in 1959.
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Cobb's daughter, Julie, is married to actor James Cromwell.
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Cobb's final Broadway appearance was in the 1968 production of King Lear.
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William Link and Richard Levinson wanted Cobb to appear in their play Prescription: Murder as a character named Lt. Columbo. He was unavailable so the role went to Thomas Mitchell instead.
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Cobb played Joanne Woodward's psychiatrist in The Three Faces of Eve.
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One of Cobb's nastiest screen roles was that of outlaw Doc Tobin in Man of the West.
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During the 1930's Cobb played the role of a patriarch in the original cast of Golden Boy despite being under 30 years of age.
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Young Cobb was a child musical prodigy, mastering the violin and harmonica at an early age.
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Cobb's father was a newspaper editor.
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Cobb was 6 feet tall.
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In 1953, Cobb saved his acting career when he courageously testified in front of the HUAC Committee investigating Communist infiltration and subversion into the entertainment industry. He named 20 people as Communists.
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Cobb appeared as a Chinese warlord opposite Humphrey Bogart in the 1955 film The Left Hand of God.
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Cobb's final American film was the classic 1973 horror film The Exorcist.
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Cobb's most famous stage role was as Willy Loman in the original Broadway cast of Death of a Salesman.
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Cobb was of the Jewish religious faith.
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In the movie 12 Angry Men, Cobb played the last juror to hold out for a guilty verdict.
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Cobb and Marlon Brando had one of movie history's best fight scenes in the 1954 classic film On the Waterfront.
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When Cobb left the cast of The Virginian it was explained that his character had been elected territorial governor.
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Cobb and daughter Julie guest starred together in an episode of Gunsmoke entitled The Colonel.