OMG Sunblue. You just described my family to the letter. The only difference being the golden child in my family is brother, not sister.
You described my father perfectly here "but I know in my heart my Co-D dad knows better....but he is worse than a trained puppy."
We're in the exact same place.
First of all, you have the right to be angry. For years I fought depression, allowed therapists to guilt me for "blaming" my parents. What finally changed my attitude was accepting (through the help of boards like this one) that is IS okay to blame them, and it IS okay to be angry. You have every right to be angry. We both do. We are emotionally damaged, and will be for the rest of our lives. We'll never feel normal inside, no matter how many books we read, or how many therapists we talk to. YES, we are allowed to be ANGRY.
I understand when you say that you feel helpless and out of control. I felt that way my entire life, until I decided to regain control. And what I did was drastic, and probably not the right thing for everyone. I went no contact with my N mother. It was HARD. It hurt, because cutting M out of my life also meant cutting my father out (trained puppy, package deal). I continued to speak with him on the phone, but no visits. It caused this internal tug-of-war, because like you, I knew in my heart that he knew better, but was too brainwashed and under M's control to ever change, or ever stand up for me. But still, he's my dad. That said, I still feel it was the right decision for me. Once I went no contact, she couldn't hurt me anymore. I stopped going over during the holidays and no longer had to watch the golden child showered with gifts and money. It was like being set free.
BUT, I am still angry. I'm angry that I was born into this nightmare. That I was such a wonderful and loving daughter, and was treated like yesterday's garbage. I'm angry that I struggled to survive while my brother was given private schooling, a new car, a second new car, down payment on a house . . . it's a long list. Ami is right though. Anger is a powerful emotion. Depression can affect our physical well being. I'm not a doctor, but I do think that venting anger is much healthier than internalizing the problem and ending up sick.
I feel like I'm now venting myself, and I'm sorry, but my gosh, I relate to your every word. Will we ever get past it? I don't know. My guess is that we probably won't. My N mother is terminally ill, but I know that I will have nightmares about her abuse years after she's gone. Speaking for myself, I don't think I'll ever get past it. The wounds are way too deep. But we can rise above it by learning to love ourselves and knowing that we're better than them. My brother, the GC, got everything handed to him on a silver platter. He grew up to be an N himself . . . selfish, hateful, won't have anything to do with anyone unless there's something in it for him (like money or gifts). I ran away from home in HS, but worked my way up from welfare to an MBA. Okay, B has more "stuff" than I do, but I'm a better human being. And I like that.
"and I am angry because no one cares."I'm sure your father cares but is helpless to act on his feelings. Your friends probably care, but don't understand NPD and don't know what to tell you (I see this in my husband). HEY! I care. And I'll bet the others on this board care too.

Kathy