Most likely, Sydney Carton and Charles Darnay, the two near-lookalikes, are the main characters of the book—although Doctor Manette; his daughter, Lucie; Madame Defarge; and Jarvis Lorry are also important characters without whom the plot would not advance.
Despite their physical resemblance to one another, Sydney Carton and Charles Darnay are very different characters morally and in terms of the outlooks on life. Darnay, a former French aristocrat, is an empathetic and understanding person. Sydney Carton, meanwhile, is a complicated character with many unappealing characteristics, including his excessive drinking and his general sense of apathy. He does not really apply himself to the practice of law, and he seems to have no ambition. In fact, early in the book, Dickens describes him as “Sydney Carton, idlest and most unpromising of men.”
Sydney is resentful and often unpleasant. When Stryver tells Sydney to get back to work, he does so “sullenly enough,” apparently angry at...
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