# The Secret of the Old Mill — Character guide

> Key figures in The Secret of the Old Mill by Franklin W. Dixon.

- [Frank Hardy](https://www.betterreads.online/discover/the_secret_of_the_old_mill_se/characters/frank_hardy.md): One of the teenage detective brothers, leading the investigation into counterfeit money.
- [Joe Hardy](https://www.betterreads.online/discover/the_secret_of_the_old_mill_se/characters/joe_hardy.md): The younger Hardy brother, brave and impulsive, aiding Frank in solving the mystery.
- [Chet Morton](https://www.betterreads.online/discover/the_secret_of_the_old_mill_se/characters/chet_morton.md): A friend of the Hardy boys, often providing comic relief and loyal support.
- [Mr. Markel](https://www.betterreads.online/discover/the_secret_of_the_old_mill_se/characters/markel.md): A suspicious stranger involved in the counterfeit ring, often seen at the old mill.
- [Uncle Dock](https://www.betterreads.online/discover/the_secret_of_the_old_mill_se/characters/uncle_dock.md): An old mill owner who provides information and assistance to the Hardy boys.
- [Fenton Hardy](https://www.betterreads.online/discover/the_secret_of_the_old_mill_se/characters/fenton_hardy.md): The father of Frank and Joe, a renowned private detective guiding their case.
- [Jerry Gilroy](https://www.betterreads.online/discover/the_secret_of_the_old_mill_se/characters/jerry_gilroy.md): A friend of the Hardy boys who helps them with their boat and adventures.
- [Lester](https://www.betterreads.online/discover/the_secret_of_the_old_mill_se/characters/lester.md): A henchman of the counterfeiters who is knocked unconscious during a chase.
- [Tony Prito](https://www.betterreads.online/discover/the_secret_of_the_old_mill_se/characters/tony_prito.md): A friend of the Hardy boys who assists them in their investigations.
- [Con Riley](https://www.betterreads.online/discover/the_secret_of_the_old_mill_se/characters/con_riley.md): A local police officer who works with the Hardy boys on the counterfeit case.
- [Mrs. Hardy](https://www.betterreads.online/discover/the_secret_of_the_old_mill_se/characters/mrs_hardy.md): The mother of Frank and Joe, supportive and caring at home.
- [Mr. Stummer](https://www.betterreads.online/discover/the_secret_of_the_old_mill_se/characters/mr_stummer.md): A local businessman who becomes a suspect in the counterfeit operation.
- [Mr. Moss](https://www.betterreads.online/discover/the_secret_of_the_old_mill_se/characters/moss.md): A farmer who encounters the Hardy boys and provides clues about the mill.
- [Callie Shaw](https://www.betterreads.online/discover/the_secret_of_the_old_mill_se/characters/callie_shaw.md): A friend of the Hardy boys, often accompanying them on social outings.
- [Miss Pollie Shaw](https://www.betterreads.online/discover/the_secret_of_the_old_mill_se/characters/miss_pollie_shaw.md): Callie Shaw's aunt, who hosts a party and helps the boys with information.
- [Sleuth](https://www.betterreads.online/discover/the_secret_of_the_old_mill_se/characters/sleuth.md): The Hardy boys' motorboat, used in their water-based investigations.
- [Chief Collig](https://www.betterreads.online/discover/the_secret_of_the_old_mill_se/characters/chief_collig.md): The chief of police in Bayport, assisting in the counterfeit case.
- [Carl Stummer](https://www.betterreads.online/discover/the_secret_of_the_old_mill_se/characters/carl_stummer.md): A relative of Mr. Stummer, involved in the counterfeit scheme.
- [Kurt](https://www.betterreads.online/discover/the_secret_of_the_old_mill_se/characters/kurt.md): A henchman working for the counterfeiters, involved in the chase scenes.
- [Phil Cohen](https://www.betterreads.online/discover/the_secret_of_the_old_mill_se/characters/phil_cohen.md): A friend of the Hardy boys who helps with their investigations.
- [Lieutenant Riley](https://www.betterreads.online/discover/the_secret_of_the_old_mill_se/characters/lieutenant_riley.md): A police lieutenant involved in the counterfeit case, distinct from Officer Riley.
- [Burgess](https://www.betterreads.online/discover/the_secret_of_the_old_mill_se/characters/burgess.md): A mysterious figure briefly mentioned in connection with the counterfeit ring.
- [Biff Hooper](https://www.betterreads.online/discover/the_secret_of_the_old_mill_se/characters/biff_hooper.md): A friend of the Hardy boys, known for his strength and loyalty.
- [MacBane](https://www.betterreads.online/discover/the_secret_of_the_old_mill_se/characters/macbane.md): A criminal associate of the counterfeiters, mentioned as a dangerous figure.
- [Detective Smuff](https://www.betterreads.online/discover/the_secret_of_the_old_mill_se/characters/detective_smuff.md): A bumbling detective who briefly appears in the investigation.
- [Mr. Wilkins](https://www.betterreads.online/discover/the_secret_of_the_old_mill_se/characters/mr_wilkins.md): A local man who reports a counterfeit bill to the police.

HTML index: https://www.betterreads.online/discover/the_secret_of_the_old_mill_se/characters