Dr. Lanie Parish can often be overlooked due to the few minutes she has on screen during "Castle." While her character has not been developed very much, she is often used to progress the development of other characters on the show. The creators of the show have made her into an important asset on the show even if she is not as prominent as other characters.
Lanie's RoleEven though we have not learned much about Lanie so far on "Castle," she is still an important character as she is used to progress other characters on the show. Secondary characters are meant to compliment the main characters and explain various aspects of the stars of a show. In the doctor's case, though, she is not only used to assist in the development of the main characters, but other secondary characters as well.
Progression of Ryan and EspositoHer semi-private relationship with Det. Esposito helped to explore the character played by Jon Huertas. Viewers watched Esposito attempt to deal with his work as he was being pulled apart inside once his relationship with Lanie ended. Ryan's character was moved along as he attempted to help his partner come to terms with the end of the relationship and made himself appear more compassionate. At the same time, the friendship between the two became more solidified as the two characters shared connections made between men in real life.
Kate's CharacterIn one of the last episodes of Season 4, it was shown how close Lanie and Kate were as the doctor tried to prod the detective into following Rick. While the friendship between the two was touched upon in the past, the recent display happened at an important time just before Kate let Rick slip between her fingers. It could easily be inferred that Kate would not have been able to make the final connection with Rick if it had not been for Dr. Parish.
The FutureWith Lanie and Alexis working so closely, the doctor could be used to add more to the character of the young and hopeful medical student. Since she appears to be an easy character to get along with, Lanie might be able to make a connection with Captain Gates and finally bring depth to that character. As Rick and Kate begin their relationship together, Dr. Parish could be used to help guide the two lovers along the way. Fans might even see the doctor's character finally explored. The possibilities to this underdeveloped character are almost endless.
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