I think and would say, that he shoud be Giglio Gigli!
Maybe you have Mia moglie... un corpo per l'amore? This is the only film, where he should be credited (DCI) which is not from Fidani. In the Fidani-Films are always the same actors: credited, uncredited. Credited with little role, uncredited with "great" role. I think he want not to have always the same cast list, but not very different, otherwise all actors get more pyseudonyms!
Only in Arrivano Django e Sartana... i don't found him, or is this guy "Gigli"? But too if he isn't in this film and he isn't credited, i think that it's well possible that he is it!