Write a character sketch of Charles Darney from A Tale of Two Cities.

Charles Darnay is one of the principal characters of Charles Dickens's A Tale of Two Cities. Born to the French nobility with the name St. Evremonde, he has come of age during the French Revolution's Reign of Terror. But he rejected the aristocratic heritage of his family name—out of revulsion for the cruelty of his family toward the peasantry—and took the name Darnay.
It would not be amiss to describe his character as a paragon of virtue. Throughout the book, his humane and compassionate nature frequently puts his life at risk. At his first appearance, he is being falsely tried for treason in England because he had attempted to help a woman whose family had been destroyed by his father.
His sense of honesty leads him to reveal his aristocratic background to his prospective father-in-law, whose life had been damaged by years of imprisonment in the Bastille. Finally, he puts his life in great danger by returning to France to save the life of a family servant who has been jailed by the revolutionaries.
One might well class Darnay with those Dickensian characters who seem too virtuous to exist. But his presence in the novel can be interpreted as an illustration of one of its main themes: that the greatest good can spring from the worst evil.