A Study in Charlotte

A Study in Charlotte is the thirteenth episode of season four of Elementary. It first aired on CBS on the 18th February, 2016.
== Summary ==
Sherlock and Joan search for a murderer who used poisonous mushrooms to kill a botany professor and a group of the instructor's students. Also, when Joan is disturbed by loud noise next door, she discovers her neighbour, Trent, is renting out his home through a vacation site that caters to hard partiers. 
== Plot ==
== Cast ==
=== Regular ===
* Jonny Lee Miller - Sherlock Holmes
* Lucy Liu - Joan Watson
* Aidan Quinn - Captain Thomas Gregson
* Jon Michael Hill - Detective Marcus Bell
=== Recurring ===
* John Noble - Morland Holmes
* Jordan Gelber - ME Hawes
* Monique Gabriela Curnen - Detective Gina Cortes
=== Guest ===
* Richard Kind - Trent Garby
* Lee Aaron Rosen - Alston Harper
* Joe Mazzello - Griffin
* Sarita Choudhury - Gira Pal
* David Thornton - Joe Ballantine
* Manoel Felciano - Franklin
* Austin Durant - Detective Lydel
* Henny Russell - Captain
* Maryann Hu - Lab Director
* Marcus Ho - Lenny Fong
* Jacob Bitzer - Chad
* Andreas Damm - Luuk
==Allusions==
*The title of this episode makes reference to Holmes' very first canon case, "A Study in Scarlet".
== Season Three Navigation ==
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Category:Elementary: Season 4