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He was the older brother of gang member Carl " Alfalfa " Switzer , one of the series ' most popular and best-remembered characters .
 Carl " Alfalfa " Switzer
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Carl " Alfalfa " Switzer