Kemal Amin "Casey" Kasem is an American radio personality and voice actor, known for being the host of the nationally syndicated Top 40 countdown show American Top 40 and for voicing the character Shaggy in the Saturday morning cartoon franchise Scooby-Doo.
Kasem, Don Bustany and Ron Jacobs founded the American Top 40 franchise in 1970, hosting it from July 4, 1970 to August 6, 1988; and from March 28, 1998 to January 3, 2004. Between January 1989 and early 1998, he was the host of Casey's Top 40, Casey's Hot 20, and Casey's Countdown. Also beginning in 1998 Kasem hosted two adult contemporary spinoffs of American Top 40, American Top 20 and American Top 10. Kasem retired from AT20 and AT10 on July 4, 2009 and both shows ended on that day.
In addition to his radio shows, Kasem has provided the voice of many commercials; has done many voices for Sesame Street; was the voice of NBC; helps out with the annual Jerry Lewis telethon; and provided the cartoon voices of Robin in Super Friends, Mark on Battle of the Planets, and a number of characters for the Transformers cartoon series of the 1980s. In 2008, he was the voice of Out of Sight Retro Night which aired on WGN America, but was replaced by rival Rick Dees. After 40 years, Casey retired from his role of voicing Shaggy in 2009, although he did voice Shaggy's father in the 2010 TV series, Scooby-Doo! Mystery Incorporated. Kasem's daughter Kerri Kasem has followed in her father's footsteps by hosting the nationally syndicated Sixx Sense and The Sideshow Countdown for Clear Channel among other shows. Since early 2012, Casey Kasem's voice can be heard on 1970s-era American Top 40 shows on Smooth Radio in the UK and from the 1970s and the 1980s on various radio stations in the US.