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Charles Matthau ( born December 10 , 1962 ) is a film and television director and actor and the son of actor Walter Matthau .
 Matthau, Walter Matthau
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Matthau, Walter Matthau