The Sign of Three

Overview

Sherlock faces his biggest challenge of all – delivering a Best Man’s speech on John’s wedding day! But all isn’t quite as it seems. Mortal danger stalks the reception – and someone might not make it to the happy couple’s first dance. Sherlock must thank the bridesmaids, solve the case and stop a killer.

Guest Stars

Una Stubbs

Mrs. Hudson

Rupert Graves

DI Greg Lestrade

Louise Brealey

Molly Hooper

Mark Gatiss

Mycroft Holmes

Vinette Robinson

Sgt Sally Donovan

Lara Pulver

Irene Adler

Amanda Abbington

Mary Morstan

Ed Birch

Tom