Analysis of information sources in references of the Wikipedia article "Jack Klugman" in English language version.
... 1965 play The Odd Coupleand the subsequent 1967 movie starring Walter Matthau as the sloppy sportswriter Oscar Madison... In the television series, Oscar was played by Jack Klugman (who had taken over the role from Matthau on Broadway)...
Jack Klugman, the rubber-mugged character actor who leapt to television stardom in the 1970s as the slovenly sportswriter Oscar Madison on 'The Odd Couple' and as the crusading forensic pathologist of 'Quincy, M.E.', died on Monday at his home in the Woodland Hills section of Los Angeles. He was 90. ... Mr. Klugman's path to success was serendipitous. He was born in Philadelphia on April 27, 1922, the youngest of six children of immigrants from Russia. Most sources indicate that his name at birth was Jacob, though Mr. Klugman said in an interview that the name on his birth certificate is Jack.
