I sent a letter to Alan Carr on 21/07/2011 and recived a signed photo back within a week or so. Here's the address I used:

Alan Carr,
BBC Radio 2,
Western House,
99 Great Portland Street,
London,
W1A 4WW

Hope this helps!

I sent a letter to James May on 21/07/2011 and recived it back on 23/07/2011. Very quick response. Here's the address I used:

James May,
Arlington Enterprises Ltd.
1-3 Charlotte Street,
London,
W1T 1RT

Hope this helps!

I sent a letter to John Bishop on 20/03/2011 and recived a personolised photo back on 11/04/2011. Here's the address I used:

John Bishop,
Karushi Management,
Unit 10,
7 Wenlock Road,
London,
N1 7SL

Hope this helps!

I sent a letter to Olly Murs on 20/03/2011 and recived a personlised photo back on 30/04/2011. Here's the address I used:

Olly Murs,
Modest! Manegement,
The Matrix Complex,
91 Peterborough Road,
London,
SW6 3BU

Hope this helps!

I sent a letter to Bruce Forsyth on 20/03/2011 and recived it back on 12/05/2011. Here's the address I used:

Bruce Forsyth,
BBC,
Artist Mail,
BBC TV Centre,
Woodlane,
London,
W12 7RJ

I recived a signed letter back and a personolised photo. Hope this helps!

I sent Michael McIntyre a letter to this address: Michael McIntyre, c/o The Sands Centre, Carlise, CA1 1JQ, UK Within a week or so I had a letter back from the Sands Centre saying "Dear Amy, sorry Michael McIntyre is not at The Sands Centre this year. Regards, The Sands" I sent it on 02/09...

I sent a letter to Eliza Doolittle and I recived it within a week. The address I used was: Eliza Doolittle, ATC, 142 New Cavendish Street, Westminster, London, W1W 6YF, UK I sent it on 02/09/2011 and it arrived back on 09/09/2011. I recived a signed photo and a letter back. Very quick response. Hope...