Radio legend Casey Kasem passed away early yesterday morning at the age of 82. He'd been hospitalized in Washington state for the past two weeks, and had been in failing health for about a year.

Not only was Casey famous for the 'American Top 40' radio show, but he also did cartoon voices...including Shaggy from 'Scooby Doo'...and MANY more. He also guest starred on several television show through the years...including 'Saved By the Bell'!

Mr. Belding on "Saved By the Bell" had this to say about Casey Kasem on his Twitter feed:  "'Keep your feet on the ground, and keep reaching for the stars,' Casey Kasem.  God bless you!  R.I.P. #BigBopper  #TheSprain."

Dennis also included this photo from when Casey guest-starred on "Saved By the Bell".  Casey hosted a dance contest at The Max.

Here's a clip:

(You can find more tributes, here, here, here and here.)

(People.com has a rundown of "Iconic Characters You Never Knew Were Voiced by Casey Kasem," with videos of each...and the Associated Press came up with "10 Things You Might Not Know About Casey Kasem.")