No. Not as a character nor a voice actor.
Rocky Dennis in Heaven was created on 2004-01-21.
Rocky Dennis - 2012 was released on: USA: 29 November 2012
The cast of Rocky Dennis - 2012 includes: Buck Bedia as Guy Grilling Tim Nesmith as Rocky Dennis Brandi Stutes as Hipster Chick
There does not appear to be any study of historical writings regarding The Simpsons.
Roy Lee "Rocky" Dennis was famous for suffering from craniodiaphysela disorder. Dennis lived from 1961-1978. His life was the basis for the movie Mask.
No.
Scream Play - 2004 The Simpsons Rocky Back to the Future 1-13 was released on: USA: 15 September 2004
He died from the disease craniodiaphyseal dysplasia.
Das Bus
November 1996.
1987
They appeared on The Simpsons Movie.