Jonny Lee Miller Sherlock Holmes Actor Lucy Liu Joan Watson Actor Aidan Quinn Captain Thomas Gregson Actor Jon Michael Hill Detective Marcus Bell Actor Desmond Harrington Michael Actor Chasten Harmon Chantal Milner Guest Star Cody Kostro Kyle Spikowski Guest Star Clarke Thorell Strider Lincoln Guest Star Rosal Colon Paula Rodriguez Guest Star Gerardo Rodriguez Jesus Rodriguez Guest Star Sean Meehan Derek Clay Guest Star Alexis Suarez ESU Officer Guest Star Adam Dannheisser Art Schultz Guest Star Johnny Wu Gus Chipman Guest Star Brendan Patrick Connor Beauregard "Bud" Granville Guest Star Robert Doherty Executive Producer Carl Beverly Executive Producer Sarah Timberman Executive Producer John Polson Executive Producer Jason Tracey Executive Producer Robert Hewitt Wolfe Writer Ron Fortunato Director