Well, At Least They Tried: Notorious Celebrity Comeback Fails
Dustin Diamond
Dustin Diamond fell to Z-list celebrity status after his time on Saved By The Bell and all its spinoffs ended. So, in an attempt to comeback (to relevance we assume) Diamond released Screeched – Saved By The Smell, a porno directed by and starring him. Needless to say, he remained a Z-lister.