James Carter Walker Jr. (born June 25, 1947),known professionally as Jimmie Walker, is an American actor and comedian. Walker isbest known for portraying James Evans Jr. (J. J.), the oldest son of Florida and JamesEvans Sr. on the CBS television series Good Times which originally ran from 1974–1979.Walker was nominated for Golden Globe awards for Best Supporting Actor In ATelevision Series in 1975 and 1976 for his role. While on the show, Walker’s characterwas known for the catchphrase “Dy-no-mite!”Whether it’s his first love of performing stand-up or captivating millions with his Emmy-winning role as “J.J. Evans” in the iconic television series “Good Times,” Jimmie Walkerhas now been entertaining audiences around the world for over four decades.