David Harewood: "This is my old teacher Keith. I once had to claim I wasn't me when I met him in a café, as I was in character preparing for Homeland"
Lee: "This is Keith, and his hawk was supposed to land on my arm at a village fete, but instead stole the wig of the man next to me and flew off into a tree."
Bob: "This is Keith. He's my oldest friend, and when we were at school together, we hid a dictaphone in the classroom ceiling to confuse our teacher." Series 7 Episode 6.