
Aldo Valletti (1930-1992) was an Italian film actor best known for the role of President Curval in Salò, or the 120 Days of Sodom, directed by Pier Paolo Pasolini.
Aldo Valletti was born 1930 in Rome. His first appearance in cinema, not credited, dates back to 1956, in Poveri ma belli by Dino Risi.
After numerous uncredited and minor roles, in 1975, he was chosen by Pasolini to star the film Salò, or the 120 Days of Sodom, in which he was dubbed by Marco Bellocchio. Answering a question about the choice of Valletti for Salò, Pasolini said: "This is a generic actor that in more twenty years of work has never spoken a word."
Later, he appeared in a number of films in supporting roles, working with, among others, Damiano Damiani, Fernando Di Leo, Tinto Brass and Steno; his last appearance was in 1980, in Arrivano i gatti by Carlo Vanzina.
Description above from the Wikipedia article Aldo Valletti, licensed under CC-BY-SA, full list of contributors on Wikipedia.

Salò, or the 120 Days of Sodom
1976 · as The President

Salon Kitty
1976 · as Salon Kitty Patron Throwing a Dart at a Pubis (uncredited)

Super Stooges vs the Wonder Women
1974

One Way or Another
1976 · as Spiritual Practitioner (uncredited)

Horse Fever
1976 · as Trial Spectator (uncredited)

Seven Beauties
1975 · as Madman (uncredited)

Frankenstein: Italian Style
1975

Tutto suo padre
1978

Il lumacone
1974 · as (uncredited)

I Am Afraid
1977 · as Prison Governor

The Perfume of the Lady in Black
1974 · as Man of the Sect (uncredited)

Shoot First, Die Later
1974 · as Host

Il cav. Costante Nicosia demoniaco, ovvero Dracula in Brianza
1975 · as (uncredited)

Arrivano i gatti
1980 · as Ospite al Party (uncredited)

Stato interessante
1977 · as Carucci

The Schoolgirl
1975

Salò, l’ultimo film di Pier Paolo Pasolini
2005