| Actor | Character | Firearm | Notes |
|---|---|---|---|
| Charles Gray | Mycroft Holmes | Webley .455 Mk VI | "The Mazarin Stone" (S01E05) |
| Charles Gray | Mycroft Holmes | Percussion Dueling Pistol | "The Mazarin Stone" (S01E05) |
| Edward Hardwicke | Dr. Watson | Webley .455 Mk VI | "The Three Gables" (S01E01), "The Red Circle" (S01E04), "The Mazarin Stone" (S01E05) |
| Jon Finch | Count Sylvius | Compact top-break revolver | "The Mazarin Stone" (S01E05) |
| Jon Finch | Count Sylvius | Percussion Dueling Pistol | "The Mazarin Stone" (S01E05) |