Ren And Stimpy
An animated television show.
In Episode 8 ""Powdered Toast Man" FZ provided the voice for "The Pope" also credited as "The man with the funny white hat".
Harry Andronis was sound mixer on the Ren And Stimpy show and he also worked with FZ. He informed the show's director (and Zappa fan), John Kricfalusi, that FZ was a fan of the show and arranged for them to meet. At the subsequent meeting, at the Zappa home, Kricfalusi asked FZ if he wanted to do a voice for the show.
FZ recorded a track called Ask Mr. Stupid which was a Ren And Stimpy catch-phrase.