You have lived and were born in Britain have been on your fathers british passport before but you are only applying for a british passport now can you still audition for Harry Potter?
As long as you can PROVE you're Brittish-yes. I think your dad;s
passport should do fine, bring along a copy of your birth cert and
you're ok. As long as one of your parents are Brittish and you live
in Britain, your grand. Just, you have to have PERFECT English with
a PERFECT accent. Lavender Brown isn't foreign and Tom Riddle is