Vincent's age isn't listed on his site, and other sources online have said 78.
His family told the Associated Press he was 80.
His family reportedly said in a statement he died peacefully Sept. 13.
The cause of death was not announced as of Thursday morning.
He recently suffered a heart attack, according to several reports.
Vincent was probably best-known for his role as mob boss Phil Leotardo on HBO's "The Sopranos." But he portrayed several other tough-guy characters in films like "Goodfellas" and "Casino." Vincent leaves behind a wife and three children.