Yeah, I've always wondered why so few Italian movies have cast lists with character names for the actors. Apparently, this sort of thing was deemed unnecessary. Most of the Filmirage productions had cast lists, though, and eventually this became the norm.
But there are a couple up Italian films that do feature cast lists with character names, like DESERT BATTLE (1969), THE NIGHT OF THE ASSASSIN (1970), OVERRUN (1970), THE CAT O' NINE TAILS (1971), THE LONELY VIOLENT BEACH (1971), SPECIAL KILLERS (1973), DEEP RED (1975), RED NIGHTS OF THE GESTAPO (1977), HOLOCAUST PART TWO (1978), WILD BEASTS (1983), RATS - NIGHT OF TERROR (1983) and some others but it was far from ordinary.