James Carter `` Jimmie '' Walker ( born June 25 , 1947 ) is an American actor and comedian , known for portraying James Evans , Jr. ( J.J. ) , the oldest son of Florida and James Evans , Sr. on the CBS television series `` Good Times , '' which ran from 1974 to 1979 .
James Carter `` Jimmie '' Walker ( born June 25 , 1947 ) is an American actor and comedian . He was known for playing James Evans Jr. ( J.J. ) on the CBS television series `` Good Times '' , which ran from 1974 to 1979 .