Am I responsible for cashing a check i received in the mail that was counterfeit?

Who else's responsibility would it be? You got some money from your bank, you gave them bad checks that aren't worth anything that they can't paid on. There are plenty of forged check scams where companies, usually foreign ones whose checks take a couple weeks to not clear, send checks and ask the target to wire their own cash quickly to a U.S. accomplice. If you did that, you were an accomplice to check fraud, maybe unknowingly, but your bank would still consider your forged checks NSF and not honor them them and you'd still be responsible. Here you state you got checks, plural. That makes the story less believable. If you do have coverage with Blue Cross of NC, why woud they send you more than 1 check if they were just reimbursing you for some overpayments? If you don't have coverage with Blue Cross of NC and there were no deductibles to overpay, your cashing the checks has no justification. If you did have coverage with Blue Cross, I'd contact them and see what they say. If you don't have Blue Cross coverage or you do but you don't get anywhere with them, I'd hire a criminal defense lawyer to negotiate a settlement so that you can pay back the money and get the charge dismissed.

You need to contact a licensed criminal defense attorney in Alabama. You must act quickly to preserve your rights and take the advantage in your case. If you'll call my office I will give you a free consultation and recommend a course of action.