As Hollywood continues to mourn the loss of actor James Gandolfini, many of his former co-stars have come forth to express their sympathy for his lost. Edie Falco, who played his wife on "The Sopranos" expressed her devastation and now his TV children have expressed their condolences.

According to E! News, who spoke to Jamie Lynn Sigler, the news has left her "heartbroken." Sigler, 31, played Meadow Soprano, Tony Soprano's daughter in the iconic TV series.

"I can only imagine the pain his family feels at this time, and my heart goes out to them, especially Deborah, Michael and Liliana," the actress said.

"I spent 10 years of my life studying and admiring one of the most brilliant actors, yes, but more importantly one of the greatest men," Sigler said. "Jim had the ability, unbeknownst to him, to make you feel like everything would be alright if he was around. I treasure my memories with him and feel so honored that I was an up close witness to his greatness."

Robert Iler, who played Tony Soprano's son A.J, expressed his sadness on his Facebook page.

"I haven't cried in years and now I can't stop ... Please tell me this is all a bad dream ... I love you so much james and always will,"Iler wrote.

Gandolfini's biggest role was on "The Sopranos" playing Tony Soprano, scoring him three Emmys and a Golden Globe.

Gandolfini died this past Wednesday in Italy. Reports indicate that Gandolfini died of a heart attack. The actor was in Italy for a film festival and was joined by his wife Deborah and his two children, Michael and Liliana. The actor was 51-years old.