20:30SherlockSeries 3Episode 2: The Sign of ThreeBBC One Duration: 1 hour, 30 minutes Audio described Sun 5th Jan 2014, 20:30 on BBC One SouthAvailable for yearsWatch nowContemporary crime drama. Sherlock faces his biggest challenge of all - delivering a best man's speech on John's wedding day.ContributorsSherlock Holmes:Benedict CumberbatchDr John Watson:Martin FreemanMrs Hudson:Una StubbsDI Lestrade:Rupert GravesMycroft Holmes:Mark GatissMolly Hooper:Louise BrealeyMary Morstan:Amanda AbbingtonSgt Sally Donovan:Vinette RobinsonIrene Adler:Lara PulverJames Sholto:Alistair PetrieWriter:Steve ThompsonWriter:Mark GatissWriter:Steven MoffatDirector:Colm McCarthyProducer:Susie LiggatProducer:Sue VertueExecutive Producer:Mark GatissExecutive Producer:Steven MoffatExecutive Producer:Beryl VertueGenresDramaCrimeBrandSherlockSeriesSherlock: Series 3 Source: BBC Online