1. Oliver Twist: The titular orphan from *Oliver Twist* is one of Dickens' most enduring creations. His innocent and vulnerable nature, combined with his resilience in the face of hardship, makes him a sympathetic and memorable character.
2. Ebenezer Scrooge: The miserly and grumpy protagonist of *A Christmas Carol* is instantly recognizable and has become synonymous with Christmas. Scrooge's transformation from a cynical and selfish man to a generous and compassionate one is one of the most beloved stories in English literature.
3. Miss Havisham: The vengeful and heartbroken character from *Great Expectations* is a fascinating and complex figure. Her tragic past and her relentless pursuit of revenge make her a captivating and unforgettable character.
While these are some of the most well-known, Dickens' other characters, such as Pip, David Copperfield, and Estella, are also incredibly popular and have had a lasting impact on literature and culture.