I don't know if it's legitimate to have more than one guess on each post, but forgive me for being greedy. I believe it was one of:
1. Sharron Davies
2. This Morning agony aunt Denise Robertson
3. Phil off Location Location Location
4. Cannon (but not Ball)
5. Johnny Ball, thinking of a number
6. Sister Wendy Beckett
7. Matthew Broderick
8. Digby, the biggest dog in the world
9. Boober from Fraggle Rock
10. Kenneth Kendall