Series episode
Cast: (23 - show/hide all)
| Benedict Cumberbatch | ... | Sherlock Holmes |
| Martin Freeman | ... | Dr. John Watson |
| Una Stubbs | ... | Mrs. Hudson |
| Zoe Telford | ... | Sarah |
| Louise Brealey | ... | Molly Hooper |
| Gemma Chan | ... | Soo Lin Yao |
| Al Weaver | ... | Andy Galbraith |
| Bertie Carvel | ... | Seb Wilkes |
| Daniel Percival | ... | Eddie Van Coon |
| Paul Chequer | ... | DI Dimmock |
| Howard Coggins | ... | Brian Lukis |
| Janice Acquah | ... | Museum Director |
| Jack Bence | ... | Raz |
| John Macmillan | ... | Community Officer |
| Olivia Poulet | ... | Amanda |
| Jacqueline Chan | ... | Shopkeeper |
| Sarah Lam | ... | Opera Singer |
| Gillian Elisa | ... | Surgery Receptionist |
| Stefan Pejic | ... | Box Office Manager |
| Philip Benjamin | ... | German Tourist |
| Joanna Burnett | ... | Tour Guide |
| Claire Cage | ... | Eddie's Neighbour |
| Joe Hall | ... | Homeless Guy |
Crew:
| Euros Lyn | ... | Direction |
| Steve Thompson | ... | Script |