Introduce yourself to his wife. Tell her that you're his daughter, that he's a cold-blooded creature who is capable of disowning his own daughter and that one day, if he finds a new lover, he would probably be equally capable of abandoning her and their children as well. Not exactly a new idea. With that said, don't do it unless you know you can live with it if you break a family (his wife and other children, after all, are not involved in what he did as far as I can tell). Some wives just don't take "hidden secret daughters who are not a product of their marriages" very well, you know. You can take your revenge or take the high road. Either way, for the rest of your life you don't have a father and you can choose to become a great parent unlike some assholes.

screw him. meet your siblings

you gotta think of an awesome way to get your dad back for that. That is just terrible he must not have a soul :(

thats what facebook is for

search him up go go his house and when someone opens the door say "hi is --- here...why...he's my dad"

that's fuckn wrong

I totally agree that you should meet them anyway if you truly want to know them. don't let him get away with robbing you of more than he has. force him to acknowledge you and meet your family. you have every right to know them if you so choose.

After that I probably wouldn't want to see him again. I can hold a grudge forever, when its something like that. However, I would still want to know my siblings. Tell him that you want to see them, if he refuses show up at his house. Technically he has the right to kick you out, but that would make him look bad in front of his new wife. Get to know your little brothers or sisters. At least let them know that if they want to see you ever, that they have the option. They may or may not be old enough now to make that decision for themselves (as in Daddy says no, adn they have to listen) but someday they will be.

call him anyways he deserves it that son-of-a-bitch

I agree with #55