A few comments after having examined various galleries:
I think there are some misidentified actors in IL NOVELLIERE: IL SALOTTO DI OSCAR WILDE. I'm thinking of this picture which is supposed to be of Marina Berti:
In my opinion, that's not Marina. Instead, I think it's Marina in this picture which is supposed to be of Giusi Raspani Dandolo:
There is also a mistake in LA FELDMARESCIALLA. The old woman in the restaurant is not Lydia Zanussi, but actually Josephine Quinn.
Number 10 in the unknowns gallery from IL VERO E IL FALSO is Ugo Mari.
In PIEDONE LO SBIRRO, the 'wahrscheinlich' tag on Liliana Pavlo can be removed, because I have a small article about her from a fotoromanzo magazine which specifically mentions her participation in this film. In my opinion, the 'wahrscheinlich' tags on Lino Murolo and Sergio Mioni can also be removed, because the DB pictures leave no doubt that it's them.
In the unknowns gallery for UN GENIO, number 1 looks like Valerio Ruggeri to me.
In I DUE SUPERPIEDI QUASI PIATTI, April Clough and Jill Flanter have been mixed up. It is April Clough who is Galina, while Jill Flanter is Angie.
In BANANA JOE, the 'Unbekannt Middle-aged black haired woman' is really Adriana Bruno.
In the unknowns gallery for NON C'È DUE SENZA QUATTRO, number 4 is Paul Costello, who is also credited with script continuity as Paul F. Costello.