Guest Stars Una Stubbs as Mrs. Hudson Rupert Graves as DI Lestrade Louise Brealey as Molly Hooper Mark Gatiss as Mycroft Holmes Andrew Scott as Jim Moriarty Lara Pulver as Irene Adler Danny Webb as DI Carter Oona Chaplin as Jeanette Rosalind Halstead as Kate Andrew Havill as The Equerry Munir Khairdin as Creepy Guy Luke Newberry as Young Policeman Honor Kneafsey as Little Girl Richard Cunningham as Timid Man Thomasin Rand as Beautiful Woman Todd Boyce as Neilson Rosemary Smith as Married Woman Simon Thorpe as Businessman Anthony Cozens as Geeky Young Man Nathan Harmer as Phil Darrell Las Quevas as Plummer Peter Pedrero as Archer Ilana Kneafsey as Little Girl
