James Carter 'Jimmie' Walker (born June 25, 1947) is an American actor and stand-up comedian, known for portraying J. J. Evans on the television series Good Times, which ran from 1974 to 1979. While on the show, Walker's character was known for the catchphrase, 'Dy-no-mite!', which he also used in his mid-1970s TV commercial for a Panasonic line of cassette and 8-track tape players. Walker was born in The Bronx, New York. He is a graduate of Theodore Roosevelt High School in New York City. Through a federal program known as SEEK, or 'Search for Education, Evaluation, and Knowledge', he continued his studies and entered into the field of radio engineering with WRVR. As a young man, Walker was a vendor at Yankee Stadium, starting with the 1964 World Series.
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