1 Vera Lynn
2 Judi Dench
3 Michael Palin
4 Stephen Fry
5 Delia Smith
6 David Jason
7 Billy Connolly
8 Barbara Windsor
9 David Attenborough
10 Pam Ayres
11 Christopher Biggins
12 Paul McCartney
13 Trevor McDonald
14 Joanna Lumley
15 Cliff Richards
16 Virginia Wade
17 Jonny Ball
18 Julie Walters
19 David Suchet
20 Bernard Cribbens
21 Nicholas Parsons
22 Leslie Phillips
23 Monty Don
24 The Queen
25 Shirley Bassey
26 Maggie Smith
27 Alan Titchmarsh
28 Sir Ian McKellen
29 Ester Rantzen
30 Barry Cryer
And unless something else comes to mind (although you lot have had long enough) THIS is the definitive list ... probably