Jimmie Walker

James Carter Walker Jr. (born June 25, 1947) is an American actor and comedian. He portrayed James ("J.J.") Evans Jr., the older son of James Evans Sr. and Florida Evans, on the CBS television comedy series Good Times. The show ran from 1974 to 1979, and Walker was nominated for a Golden Globe Award in 1975 and 1976 for his role as J.J.

On Good Times, Walker's character was known for his catchphrase "Dyn-o-mite!", and the actor later used it in his mid-1970s TV commercials for Panasonic cassette and 8-track tape players and in a 2021–2023 public announcement for Medicare. Walker also starred in Let's Do It Again (1975) with John Amos, and The Greatest Thing That Almost Happened (1977) with James Earl Jones.