Yes, employees who are here illegally may recover unpaid wages (minimum wage and overtime). Please take a look at this website for more information www.offthebooks.info
Yes, even illegal worker's receive the protections provided by labor laws. You should contact an attorney to discuss the details of your situation.
This answer is provided as a public service and as a general response to a general question, it is not meant, and should not be relied upon as specific legal advice, nor does it create an attorney-client relationship.