One Watson, One Holmes

One Watson, One Holmes is the nineteenth episode of season three of Elementary. It first aired on CBS on 9 April, 2015.
== Summary ==
When a member of Everyone - the anonymous hacker group they periodically work with - is murdered, Holmes and Watson find themselves drawn into a civil war playing out on the internet.
== Plot ==
== Cast ==
=== Regular ===
* Jonny Lee Miller – Sherlock Holmes
* Lucy Liu – Joan Watson
* Aidan Quinn – Captain Thomas Gregson
* Jon Michael Hill – Detective Marcus Bell
=== Guest ===
* Joseph Cross - Petros Franken
* Adam Chanler-Berat - Brady Dietz
* Rosyln Ruff - Agent Branch
* Steve Routman - Mr Briggs
* Lucy Owen - Rachel Carter
* Will Pullen - Caleb Hill
* Erik Heger - Cory Evans
* Gretchen Hall - Marnie
* Susan Pourfar - Emily Hankins
* Alicia Harding - Katherine
== Season Three navigation ==
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Category:Elementary: Season 3