Cobb is buried in Mount Sinai Memorial Park in Los Angeles.
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.
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.
Cobb's daughter, Julie, is married to actor James Cromwell.
Cobb's final Broadway appearance was in the 1968 production of King Lear.
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.
Cobb played Joanne Woodward's psychiatrist in The Three Faces of Eve.
One of Cobb's nastiest screen roles was that of outlaw Doc Tobin in Man of the West.
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.
Young Cobb was a child musical prodigy, mastering the violin and harmonica at an early age.
Cobb's father was a newspaper editor.
Cobb was 6 feet tall.
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.
Cobb appeared as a Chinese warlord opposite Humphrey Bogart in the 1955 film The Left Hand of God.
Cobb's final American film was the classic 1973 horror film The Exorcist.
Cobb's most famous stage role was as Willy Loman in the original Broadway cast of Death of a Salesman.
Cobb was of the Jewish religious faith.
In the movie 12 Angry Men, Cobb played the last juror to hold out for a guilty verdict.
Cobb and Marlon Brando had one of movie history's best fight scenes in the 1954 classic film On the Waterfront.
When Cobb left the cast of The Virginian it was explained that his character had been elected territorial governor.
Cobb and daughter Julie guest starred together in an episode of Gunsmoke entitled The Colonel.