Some people might interpret this show as a cop show and some might interpret this show as a drama or comedy.In reality it is a mixture of all three because it uses components from all of them. We see the main character, Castle as a rich author just along for the ride. In most cases we see Castle help find the answer to a lot of the questions the crimes present by using his intellect. We see Beckett as a detective who tries to stay patient with Castle while she is also solving a crime.