Character guide

Frank Hardy

major

Also known as Frank, XIX Disappointment Frank Hardy

One of the two teenage detective brothers, leading the investigation on Cabin Island.

Joe Hardy

major

Also known as Joe, Joseph Hardy

The younger Hardy brother, assisting Frank in solving the mystery.

Chet Morton

supporting

Also known as Chet

A friend of the Hardys who often provides comic relief and helps with investigations.

Biff Hooper

supporting

Also known as Biff

A friend of the Hardys who joins them on their adventures.

Mr. Hanleigh

major

Also known as Hanleigh, George Hanleigh, V Mr. Hanleigh, The Cipher Solved Hanleigh, XX When Rogues Fall Out Hanleigh

A suspicious and antagonistic man involved in the mystery on Cabin Island.

Jefferson

supporting

Also known as Mr. Jefferson

An elderly man with a connection to the island and its secrets.

Elroy Jefferson

supporting

Also known as Jefferson, XXV Elroy Jefferson

The nephew of Mr. Jefferson, who becomes a key figure in the resolution.

Amos Grice

minor

Also known as Amos

A local man who provides information to the Hardy boys.

John Sparewell

major

Also known as Sparewell, this man Sparewell

A mysterious figure whose actions are central to the plot.

Ike Nash

minor

Also known as Nash

A local man who assists the Hardys with information.

Tad Carson

minor

Also known as Carson

A friend of the Hardys who participates in their adventures.

Fenton Hardy

supporting

The father of Frank and Joe, a renowned detective who advises them.

Aunt Gertrude

minor

The Hardys' aunt who lives with them and often fusses over the boys.

Mr. Hardy

minor

Another reference to Fenton Hardy, the boys' father.

Mr. Grice

minor

A local resident who interacts with the Hardy boys.

Callie Shaw

minor

Also known as Callie

A friend of the Hardys who appears in social scenes.

Mary Bender

minor

Also known as the Bender

A local woman mentioned in connection with the mystery.

Mrs. Jefferson

minor

The wife of Mr. Jefferson, involved in the family affairs.

Iola Morton

minor

Also known as Iola

Chet Morton's sister and a friend of the Hardys.

Mrs. Hardy

minor

The mother of Frank and Joe Hardy.

Mr. Sparewell

minor

Also known as Sparewell

Another reference to John Sparewell, a key figure in the plot.

Santa Claus

minor

Also known as Santa

Mentioned in a Christmas context during the story.