Sherlock Characters — Spoiler-Safe Guide

Every tracked character in Sherlock (2010–2017, BBC) with spoiler-safe bios and relationship maps. We track 11 characters across 4 groups: 221B Baker Street, Scotland Yard, Whitehall, Adversaries.

Characters are grouped by the season they first appear in — scroll only as far as you've watched. Each page describes a character strictly as of their introduction.

Introduced in Season 1

• Sherlock Holmes — The consulting detective · first appears S1 · E1
• John Watson — The doctor who misses the war · first appears S1 · E1
• Mycroft Holmes — The British government · first appears S1 · E1
• Greg Lestrade — The Yard's honest man · first appears S1 · E1
• Mrs Hudson — The landlady, not the housekeeper · first appears S1 · E1
• Molly Hooper — The pathologist who counts · first appears S1 · E1
• Jim Moriarty — The consulting criminal · first appears S1 · E3

Introduced in Season 2

• Irene Adler — The Woman · first appears S2 · E1

Introduced in Season 3

• Mary Morstan — The nurse with a past · first appears S3 · E1
• Charles Augustus Magnussen — The Napoleon of blackmail · first appears S3 · E3

Introduced in Season 4

• Eurus Holmes — The sister east of the wind · first appears S4 · E2

Open Sherlock in the interactive relationship map — pick your exact episode and explore who's connected to whom, spoiler-free.