Thrilling forum

Alessia... un vulcano sotto la pelle (1979) credited on the poster, as Biagio.
There were no credits in the copy i found in this obscure light erotic movie, but managed to find a poster credit.

Ercole contro Roma (1964) only seen very briefly as One of Rosio's men

Hanno ucciso un altro bandito (1976) as Orfeo, credited on the poster, role to be confirmed.
Some explanation about this rare movie, according to Sara Achenza, daughter of actor Gavino Achenza it was shot around 1972 but remained on the shelf till 1976.
It was considered lost until a 35mm print was discovered by a cinephile.
It waited for restoration and was done so around 2019 in a lab in the Netherlands.
Found on the net a picture of Mario in this movie.

L'arbre de Guernica (1975) credited, as Ramiro.

Stangata Napoletana (1983) aka. La trastola, credited as Henchman.

L'odore della notte (2002) credited, as Acrobat, does not appear identifiably.

This movie is not to be compared with the episode by the same name in the serie "Commissario Montalbano" from 2002.