* Sherlock Holmes: He's the protagonist and the brilliant detective who unravels the mystery, making him a natural fan favorite.
* Helen Stoner: She's the victim, and her vulnerability and desperation make her a sympathetic character. Many readers identify with her fear and hope for justice.
* Dr. Roylott: The antagonist and the villain, he's often considered a compelling character due to his cunning and ruthlessness.
Ultimately, which character you find most compelling is a matter of personal preference.
Do you have a favorite character in "The Speckled Band"?