Alexander Federico Petricone (February 29, 1936 – July 18, 2015), known professionally as Alex Rocco, was an American actor. His roles have ranged from comedy to playing gangsters in Mafia movies, notably Moe Greene in The Godfather. Rocco was born as Alexander Federico Petricone in Cambridge, Massachusetts in 1936, but raised in nearby Somerville, the son of Mary (née DiBiase; October 1909- August 1978) and Alessandro Sam Petricone. He is of Italian descent.
According to organized crime turncoat Vincent Teresa, Alex was a hanger-on with the Winter Hill Gang of the Boston area. An unwanted advance toward Petricone's then girlfriend on Labor Day, 1961 touched off the Boston Irish Gang War of the 1960s. Georgie McLaughlin who made the advance was beaten by Winter Hill Gang members. Howie Carr, a Boston-area journalist and radio personality who has written extensively about the Boston underworld, has written that the young Petricone (whose nickname was "Bobo") was arrested in Charlestown in November 1961 along with Winter Hill boss Buddy McLean for questioning following the death of Bernie McLaughlin of the McLaughlin gang, the first murder of the war.
Petricone was released without charge, and shortly thereafter left the Boston area. (When he returned to the Boston area in 1972 to play a bank robber in the film The Friends of Eddie Coyle, Petricone — now styled "Alex Rocco" — set up a meeting between Robert Mitchum and local Irish-American gangsters to help Mitchum research his part as Eddie Coyle, a low-level Irish-American criminal. Rocco introduced Mitchum to Howie Winter, leader of the Winter Hill Gang. Another Winter Hill Gang member who met with Mitchum was Johnny Martorano. Ironically, Martorano had murdered Billy O'Brien, a low-level gangster who may have been the prototype of the Eddie Coyle character.
After his arrest, Petricone moved to California in 1962 and began using the name Alex Rocco. He first worked as a bartender in Santa Monica, California and took acting lessons from actor Leonard Nimoy, a fellow Boston native. Nimoy was not impressed with Rocco's heavy Boston accent and told him to take speech lessons. Rocco followed through with Nimoy's instructions and after ridding himself of the accent came back to study under Nimoy and character actor and teacher Jeff Corey.