Carmen Argenziano appeared as Selmak/Jacob Carter on Stargate SG-1
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Carmen Argenziano, an actor on Stargate SG-1, has died. He was 75.

Argenziano’s rep confirmed his death to PEOPLE on Monday.

In a Facebook post on Sunday, 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.

“His acting career began in the early 1970’s and included a turn in The Godfather, Part II. Carmen worked steadily over more than 40 years and was a staple character actor on our televisions throughout that time, including on series such as Cheers, Melrose Place, ER, CSI:NY and many others, while also lending his talents to films both tentpole and intimate. To genre fans, he is best known for his role as Jacob Carter/Selmak on the series Stargate SG-1, a role he relished and recurred in for seven years,” the post reads.

Stargate Sg-1 - 1997
Carmen Argenziano, Michael Shanks and Amanda Tapping on
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The post, which includes multiple photos of Pennsylvania-born Argenziano, also praises him as “a consummate gentleman.”

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. While I had known him for more than a decade, it wasn’t until the past 3 years as a con representative for him that our trust and friendship grew and blossomed. He truly treated me like family, and that sentiment was returned.”

“Please join me in sending thoughts and prayers to Carmen’s family and loved ones during this difficult time,” it concludes. “Godspeed, my friend.”

In addition to Stargate SG-1 — he played Selmak/Jacob Carter/General Jacob Carter from 1998-2005 — Argenziano also appeared in The Godfather: Part II, Hawaii Five-0, The Mentalist and Criminal Minds.

He is survived by his wife, Lisa A. Angelocci, and his three children, according to The Sun.