yeah that sucks. check with your insurance company about the injury. the coverage will be called unisured motorist bodily injury. basically your insurance campany will pay you for bills and pain and suffering just as if they were the other parties insurance. yes you will be out your deductible. however, it may be possible the owner of the car had insurance?? or if he was a kid if his parents have insurance if would cover him if he was living in the house, even with him not being on the policy. I guess just be thankful everyone is ok and you had insurance.
fyi - it is completely reason for you to contact him to try and get your deductible from him. just do it profressionaly.