Robert Patrick was on Carolla's podcast a while back and he was talking about his short stint on the show. He said that he and Gandolfini were taking a break from shooting and having a cigarette chatting. They were going to be shooting the scene where Tony confronts Davey in his office at the sports store the next day. Robert jokingly tells Gandolfini "You better bring your A game tomorrow" and Gandofini just glares at him and walks away. They go to shoot the scene the next day and Gandofini just says to him "How's your balls?" Gandolfini smacked him for real and was really throwing him around the room. Robert said he didn't think he appreciated the suggestion about bringing his A game. Maybe Robert did that on purpose to piss him off to use for that scene or whatever, but he said he was an intense guy when it came to acting. Maybe too intense.

Unfortunately they didn't really get much into the show other than that. But I thought that was a cool little insight/behind the scenes moment.

The casting for this show was spot on.