Bill and Marty

Bill and Marty, voiced by Dan Castellaneta and Harry Shearer, are two radio show hosts and deejays on Springfield's own radio station KBBL.

Apperance
When they appear, they are usually seen (and sometimes only heard), when the Simpsons are listening to the radio. Bill is middle-aged and balding, while Marty is younger and has a full head of hair.

Frequency
The radio frequency of KBBL is 102.5 FM, and Bill is often seen wearing station merchandise which brandishes this frequency. It is likely that he is required to do so by the radio station.

Contests
Like many radio programs, they hold many competitions for listeners to enter. They are responsible for giving Bart his elephant, Stampy, although they were surprised when Bart wanted Stampy, because they thought he would choose the other prize, 10,000 dollars. In another instance, they gave away two tickets to the Springfield Vs Shelbyville game.

Interveiws
They can also be seen interviewing Spinal Tap on the episode “The Otto Show,” where they want the band to say “Nobody rocks like Bill and Marty on KBBL,” and “Rock-a-doodle-doo, you’re listening to Bill and Marty!” This might suggest that the two want to get their radio show more publicity.