Nicola Walker and Peter Firth

[Kirayuki]

Well I haven't written to either of them but I have written to other people before. You usually just get a signed postcard or something in reply from most people... but if your letter is exceptional (or the actor isn't busy) you sometimes get a personal reply. Someone I know had a reply of a signed postcard which said, "Try to lay off the Sherbert" on the back as they had mentioned the fact they were eating large amounts of it at the time of writting the letter.
Another one: I don't remember who it was but someone I know and their friend wrote to someone and sent a big homemade questionaire full of harmless questions to him. They received it back filled in with a note. (To be honest though I don't have the gall to do such a thing).

But anyway, in regards of writting to Nicola or Peter all I can say is go for it. You never know unless you send it what sort of reply you'll get.