Zorro contro Maciste (Italy 1963 / Director: Umberto Lenzi)
Most databases list Franco De Simone in the cast, but in the Italian credits it’s Franco De Leone.
Appearing in several pieces of this period including a couple of other Lenzi films, (Superseven chiama Cairo and Un milione di dollari per sette assassini), is Francesco De Leone. Would it be possible this may be the same actor? @JonathanCorbett, might you have any information?