Well as above with postage,put a couple of $s should be ok and its a lot cheaper than ircs, if you want harry potter pics send your own cause most will just send there own face pic,another tip is to see witch harry potter stars sign and try bulk printing sites like photobox to cut the cost of printing down.

cost depends on what your sending and to how many actors are you gonna do.. with this hobby printing pictures, envelops and stamps can add up to alot of $ over time

its always a good idea to sends a SASE for them to respond which always gives a higher chance of them to respond.. but ive had a few of my HP success's without sending a SASE cause i didnt have UK stamps..

you could always just send a few bucks with SAE to cover the postage.

I live in Canada, but I love the Harry Potter films. I was just wondering what would be the best way to go about sending to the actors/actresses? Do I need to send a S.A.S.E? How expensive could it get?