"The Sopranos" actor, Joseph Siravo, the actor who played Tony Soprano’s father in several flash-back scenes, has died. He was 66.

Siravo succumbed to cancer after a long fight with the disease. One of his co-stars, Garry Pastore, announced his death.

“RIP my dear friend, who fought an incredible fight. I will miss you. See you on the other side.” The actor Kelli O’Hara also honored Siravo, noting on Twitter that “the stage and screen and I will miss you.”

Siravo was an accomplished actor with numerous credits, but the fan-favorite was clearly Johnny Boy on "The Sopranos." He appeared in dream scenes in 5 of the episodes.

He also starred in FX's "The People v. OJ Simpson:  American Crime Story" -- he played Fred Goldman, Ron's father.

Joe's 'Sopranos' co-star, Michael Imperioli, said, "His performance as Johnny Boy Soprano was spot on and he also made a perfect John Gotti in Nick Sandow's "The Wannabe. 

In my opinion, he was the best of all the actors who've played the Teflon Don."

Joe is survived by his daughter, son-in-law, sister and 2 brothers.