Tony Sirico, aka 'Paulie Walnuts,' died at the age of 79.

Tony Sirico, best known for his role on HBO's "The Sopranos" as henchman Peter Paul "Paulie Walnuts" Gualtieri, has died, according to his manager Bob McGowan.

According to his IMDB profile, he was 79 years old.

Despite without stating a cause of death, McGowan described Sirico as a "extremely devoted and long-term client" who had been a client for 25 years and had "always given to charity."

Michael Imperioli, a "Sopranos" co-star of Sirico, also announced the news on Instagram, stating that Sirico passed away on Friday.

In the late '80s and '90s, Sirico, a native of Brooklyn, racked up a number of acting credits by playing roles in movies including 'Goodfellas,' 'Mighty Aphrodite,' and 'Mickey Blue Eyes.

Sirico went on to appear in shows such as "Lilyhammer," "The Grinder," and "Family Guy" after the show ended.

According to Bob McGowen, Sirico's manager, he passed away in a Fort Lauderdale, Florida, assisted care facility. The reason for the death was not immediately known.

Tony Sirico, best known for his role on HBO's "The Sopranos" as henchman Peter Paul "Paulie Walnuts" Gualtieri, has died, according to his manager Bob McGowan.