In tonight's episode of Castle, "Montreal," fans hope to gain insight into the whereabouts of Richard Castle. After all, he went missing on his wedding day and, months later, returned with amnesia. Actress Stana Katic, who plays Castle's fiancee and cop to his writer, tweeted a possible teaser, adding even more drama to the situation. On October 4, she tweeted, "What happened to #Castle ? Is he who he says he is? This man may have the answers (RoganDidIt) @EddieMcClintock."
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