Richard Castle is everyone’s favorite writer/detective, but how well do you really know him?

Nathan Fillion has been playing Richard Castle for the last six years. During that time Castle has seen his ups and downs. There was the constant back and forth relationship with Beckett, the mystery surrounding who killed Beckett’s mother, and the even bigger mystery of Castle’s father.

How well do you know Richard? Have you seen every episode more than once? To see exactly how big of a fan you are, we’ve assembled ten questions that test your knowledge about Richard Castle. Some of these questions will require a borderline-creepy level of knowledge. For other questions, you may have a hard time answering if you haven’t kept up with the series.

After taking the quiz, see which answers you got right or wrong, then share your result with your friends and challenge their level of Richard Castle-intelligence.

[quiz id=10]

Castle airs weekly on ABC. This season has been especially interesting with the return of Castle’s father, the return of 3XK, and talk of the wedding. All signs point to Castle and Beckett getting married by the season’s end, but will it really be that smooth? It seems unlikely considering the various times Senator Bracken has been in the background and the fact that 3XK is still lingering around.