Jonny Lee Miller Sherlock Holmes Actor Lucy Liu Joan Watson Actor Aidan Quinn Captain Thomas Gregson Actor Jon Michael Hill Detective Marcus Bell Actor Jeremy Jordan Joey Castoro Guest Star Lynn Collins Tanya Barrett Guest Star Khalil Kain Benny Charles Guest Star Rich Sommer Harlan Emple Guest Star Glenn Fitzgerald Linus Roe Guest Star Richard Holmes Jason Harrison Guest Star Simon Feil Office Worker Guest Star Rock Kohli Cabbie Guest Star Nicholas Maccarone Wayne Kaneshiro Guest Star Robert Doherty Executive Producer Carl Beverly Executive Producer Sarah Timberman Executive Producer Craig Sweeny Executive Producer Jeffrey Paul King Writer Jerry Levine Director