Full credits

On screen, in billing order

1. 1Andrew Scott
2. 2Benedict Cumberbatch
3. 3Douglas Wilmer
4. 4Jonathan Aris
5. 5Katherine Parkinson
6. 6Louise Brealey
7. 7Mark Gatiss
8. 8Martin Freeman
9. 9Rupert Graves
10. 10Vinette Robinson