Is Barney Fife dead

Although the Andy Griffth Show character never died, actor Don Knotts did, in 2006.

Jesse Donald "Don" Knotts was 81 years old when he died on February 24, 2006 (born July 21, 1924).

Beginning in 1988, Knotts appeared in several episodes of Griffith's show Matlock (seasons 3-6).