Argenziano, best known for his roles in Stargate SG-1 and The Godfather: Part II, died at age 75, his rep confirmed to PEOPLE on Feb 11.
In a Facebook post, Event Horizon Talent announced the death of Argenziano, who worked as an actor for more than four decades.
"It is with a heavy heart and more sadness than anyone can realize right now that I announce the passing of client Carmen Argenziano at the age of 75," the post begins.
In part, it continues, "While Carmen was a client, he was also a good friend. While he was a class act and a consummate gentleman at the events he was booked for, he was also a caring and generous person."
He is survived by his wife, Lisa A. Angelocci, and his three children, according to The Sun.