I name was forged on a child support document in court. I was not notified that I had a hearing as well. I got a cop of the court case sent to me by mail and I noticed that this was not my signature at all!! I want to know can I sue the system.

I noticed that this was not my signature

What was the document upon which was the forged signature?

Probably not "sue the system", but surely this would be grounds for appeal or dismissal, etc. Do you have an attorney?