Who made a guest appearance on the First Season of Full House playing himself? (Hint: he was also on Saved By The Bell)

Max(Ed Alonzo)

Was that in that ep. where Joey decides to give up comedy and become a business man? The one with Phyllis Diller? Or was it another one? I can't remember!!!!

That I don't know, but it was Ed Alonzo.

Just some more trivia here; Wayne Newton, Little Richard and the Beach Boys were also guests on the show who played themselves!