Jonny Lee Miller Sherlock Holmes Actor Lucy Liu Joan Watson Actor Aidan Quinn Captain Thomas Gregson Actor Jon Michael Hill Detective Marcus Bell Actor Nelsan Ellis Shinwell Johnson Actor Jordan Gelber Guest Star Betty Gilpin Guest Star Chasten Harmon Guest Star Elizabeth Ward Land Guest Star David Aaron Baker Guest Star Holly Chou Guest Star Julian Acosta Guest Star Sebastian Chacon Guest Star Graham Rowat Guest Star Yassmin Alers Guest Star Katie Kreisler Guest Star Sendhil Ramamurthy Guest Star Tyrone Mitchell Henderson Guest Star Robert Doherty Executive Producer Carl Beverly Executive Producer Sarah Timberman Executive Producer John Polson Executive Producer Jason Tracey Executive Producer Jeffrey Paul King Writer Ron Fortunato Director