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The Sign of Four Characters

Arthur Conan Doyle

A dead captain, six pearls, and a treasure that ruins everyone who touches it.

Who drives the story

Main characters

Sherlock Holmes

A bored, cocaine-using deduction machine who comes alive only when a problem is hard enough. He solves a ten-year mystery in days but cannot talk his friend out of marrying for love.

Appears in:
Part 1: A Needle, a Lady, and Six Pearls
Part 2: The Bald-Headed Man's Confession
Part 3: Creosote, a Hound, and the Aurora
Part 4: The Confession and the Empty Box
Themes:
Reason versus love

Dr. John Watson

The loyal narrator who scolds Holmes about the needle and falls for the client. He shoots an islander dead mid-chase and ends the book engaged, richer in love and poorer by a fortune.

Appears in:
Part 1: A Needle, a Lady, and Six Pearls
Part 2: The Bald-Headed Man's Confession
Part 3: Creosote, a Hound, and the Aurora
Part 4: The Confession and the Empty Box
Themes:
Reason versus love

Mary Morstan

The client, left fatherless by a treasure she never saw. Six anonymous pearls a year keep her hope alive; in the end she keeps the pearls and loses the gold, and calls it a fair trade.

Appears in:
Part 1: A Needle, a Lady, and Six Pearls
Part 2: The Bald-Headed Man's Confession
Part 4: The Confession and the Empty Box
Themes:
The curse of treasure
Reason versus love

Jonathan Small

A wooden-legged convict who spent decades guarding a treasure that cost him his leg, his freedom, and everyone he conspired with. He scatters the jewels rather than let them ruin anyone else.

Appears in:
Part 1: A Needle, a Lady, and Six Pearls
Part 2: The Bald-Headed Man's Confession
Part 3: Creosote, a Hound, and the Aurora
Part 4: The Confession and the Empty Box
Themes:
The curse of treasure
Guilt and its inheritances
The imperial reckoning

Tonga

A small Andaman Islander whose life Small once saved, repaying the debt with lethal loyalty. His poisoned thorn kills Bartholomew, and a bullet kills him on the Thames.

Appears in:
Part 3: Creosote, a Hound, and the Aurora
Part 4: The Confession and the Empty Box
Themes:
Guilt and its inheritances
The imperial reckoning

Thaddeus Sholto

The ornate, bald, guilt-ridden twin who sent the pearls to make amends for his father's sin. His reward is a night in a police cell for a murder he did not commit.

Appears in:
Part 1: A Needle, a Lady, and Six Pearls
Part 2: The Bald-Headed Man's Confession
Part 3: Creosote, a Hound, and the Aurora
Themes:
Guilt and its inheritances

Bartholomew Sholto

Thaddeus's twin, the clever one who finally finds the Agra treasure in the attic. He enjoys it for hours before a poisoned thorn finds his ear.

Appears in:
Part 2: The Bald-Headed Man's Confession
Part 4: The Confession and the Empty Box
Themes:
The curse of treasure
Guilt and its inheritances

Major John Sholto

The dying patriarch who buried a friend's body and kept a stolen treasure. A bearded face at his window finishes what his conscience started.

Appears in:
Part 1: A Needle, a Lady, and Six Pearls
Part 2: The Bald-Headed Man's Confession
Part 4: The Confession and the Empty Box
Themes:
The curse of treasure
Guilt and its inheritances

Also in the story

Supporting characters

Inspector Athelney Jones

The confident Scotland Yard man who arrests the wrong twin within minutes of arriving. A reliable foil for Holmes's superiority.

Appears in:
Part 3: Creosote, a Hound, and the Aurora

How they are connected

Key relationships

Go deeper

The Sign of Four themes & symbols

The curse of treasure · Guilt and its inheritances · The imperial reckoning · Reason versus love

Themes explained

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