David is a great actor and no-one else could play his role in Peep Show half as well as him. He is also really witty and clever when he is on panel shows such as Would I Lie to You?, QI or Mock the Week. I love it when he gets all het up about things on these shows and starts on his rants - and usually I agree with him!
He's also really good looking and sweet. He's got such a lovely smile and a cut laugh. He sometimes comments about being single but it's beyond my why he is.