Jonny Lee Miller Sherlock Holmes Actor Lucy Liu Dr. Joan Watson Actor Aidan Quinn Capt. Tobias "Toby" Gregson Actor Jon Michael Hill Detective Marcus Bell Actor Molly Price Donna Kaplan Guest Star Craig Bierko Jim Fowkes Guest Star Luke Kirby Aaron Ward Guest Star Andrew Pang Dan Cho Guest Star Jennifer Van Dyke Alyssa Talbott Guest Star Stephen Plunkett Martin Rydell Guest Star Susan Pourfar Emily Hankins Guest Star Keren Dukes Uniform Guest Star Judy Kuhn Board Member Guest Star Alison Walla Girlfriend Guest Star Tim Ewing Sommelier Guest Star Nicole Patrick Barista Guest Star Robert Doherty Executive Producer Sarah Timberman Executive Producer Carl Beverly Executive Producer Michael Cuesta Executive Producer Craig Sweeny Writer Rosemary Rodriguez Director