Trailer
 | Jeremy Brett as Sherlock Holmes |
 | Edward Hardwicke as Dr. John Watson |
 | Robert Hardy as Charles Augustus Milverton |
 | Norma West as Lady Diana Swinstead |
 | Gwen Ffrangcon Davies as The dowager |
 | Colin Jeavons as Inspector Lestrade |
 | Serena Gordon as Lady Eva Blackwell |
 | Rosalie Williams as Mrs Hudson |
 | Sophie Thompson as Agatha |
 | Nickolas Grace as Bertrand |
 | Sarah McVicar as The Hon. Charlotte Miles |
 | David Mallinson as Colonel Dorking |
| Brian Mitchell as Harry, Earl of Dovercourt |
 | Hans Meyer as Hebworth (Alias Veitch) |
| Stephen Simms as Stokes |
| Belinda Peters as Lillie |
| Henrietta Whitsun-Jones as Daphne |
| Alan Rothwell as Tronson, The Butler |
| Howard Gaye as Lewis, Dorking's Batman |
| David Scase as Art Gallery Owner |
 | Jimmy Hibbert as Hobbs, The Painter |
| Tony Broughton as Auctioneer |
| Lee Clarke as Emile |
| Simon Fogg as Cabaret Artiste |
| Writing | |
| Arthur Conan Doyle | Novel |
Crew | |
| David Odd | Cinematography |
Production | |
| Sally Head | Executive Producer |
Directing | |
| Peter Hammond | Director |
Writing | |
| Jeremy Paul | Writer |
Crew | |
| Andy Bradford | Stunts |
| Tom Lucy | Stunts |
Sound | |
| Patrick Gowers | Music |
Production | |
| June Wyndham-Davies | Producer |
Editing | |
| Clive Maltby | Editor |
Art | |
| Chris Truelove | Production Design |
Production | |
| Carolyn Bartlett | Casting |
Costume & Make-Up | |
| Esther Dean | Costume Design |
Crew | |
| Dorothy Ford | Stunts |
Art | |
| Colin Pocock | Art Direction |
