I think the show is pretty darned good, and think he's adorable on it! He has good chemistry with his lead character, and I love that he's a single father. Also, I've loved the actress who plays his mother for years!
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"It is our choices that show what we truly are, far more than our abilities"
(Dumbledore to Harry Potter)
I love it because he thinks the way we do about murder cases. The whole, no it can't be him that's too easy kind of thing....I would be amused to read one of those books too. The network could make some extra money if they had someone write Richard Castle books.