Kemal Amen "
Casey"
Kasem (April 27, 1932 – June 15, 2014) was an
American disc jockey, music historian, radio celebrity,
voice actor, and
actor, known for being the host of several music radio countdown programs, most notably
American Top 40, from 1970 until his retirement in 2009, and for
providing the voice of
"Shaggy" Rogers in the
Scooby-Doo franchise from 1969 to 1997, and again from 2002 until 2009.