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 Vinnie Jones Sebastian Moran Guest Star Marsha Stephanie Blake Melanie Cullen Guest Star Bobb'e J. Thompson Teddy Guest Star Linda Emond Dr. Candace Reed Guest Star Gabrielle Senn Escort Guest Star Mark Morettini Uniformed Cop Guest Star Robert Doherty Executive Producer, Writer Sarah Timberman Executive Producer Carl Beverly Executive Producer Michael Cuesta Executive Producer John Polson Director