Today We Kill … Tomorrow We Die! / Oggi a me … domani a te! (Tonino Cervi, 1968)

I found them both in old TV Mini-Series: Franco Pechini is with certainty the prison warden, Michele Borelli… none of the above!

He is very likely the flashback sheriff, Bannister in the Italian dub.

Here is the third Borelli in episodes from Luisa Sanfelice (1966) and La donna di cuori (1969):

As for Victoriano Gazzara (also credited as Vic Gazzarra and Victoriano Gazzarra), I’ve been at this for some time a few months ago and all the signs seem to indicate an alias for Giancarlo Sisti.