Barsad is concerned only for his own skin. He wants nothing to rebound to him by this mad act of Carton's and, having arranged for Carton's entrance into Darnay's cell, he considers their account settled.
John Barsad is the person who helped Darnay escape. Not Sydney Carton
Sydney Carton helped Charles Darnay escape from prison in Charles Dickens' novel "A Tale of Two Cities." Carton switched places with Darnay and sacrificed himself so that Darnay could leave the prison safely.
Carton has made a secret arrangement with Barsad to use Barsad's identity as a spy in order to help facilitate the escape of Lucie, her husband, and their child from France during the French Revolution. This involves Barsad impersonating a wounded English spy to gain access to the prison where the family is held.
Carton recognized the spy as Ms. Pross' brother, which would make him English (and by the French standards in the book at that time, a traitor). Knowing that Darnay was in prison at that time, he made a bargain that the spy would take Carton in to visit Darnay before Darnay could be executed, in return, Carton would not reveal the identity of the spy (which would result in the spy's death if his identity were discovered).Carton promised he would not reveal the spy's identity to the revolutionary government
The crowd mistakenly believed that Sydney Carton was Charles Darnay as they looked very similar. This confusion allowed Carton to help Darnay escape from prison during the French Revolution.
In "A Tale of Two Cities" by Charles Dickens, the character known as the "sheep of the prison" is Jerry Cruncher. Jerry works as a resurrection man at a graveyard as well as a porter at Tellson's Bank. He is referred to as the "sheep of the prison" in a metaphorical sense because of his association with death and imprisonment due to his job and circumstances.
He uses his lightsaber to kill the guards, then he gave the ring of power to Charles to eat. So when Charles ate it, he became invincible and ruled Jamaica.
According to Wikipedia, Charles Dickens, GreatExpectations: John Barsad (real name Solomon Pross) -- A spy for Britain who later becomes a spy for France (at which point he must conceal that he is British). He is the long-lost brother of Miss Pross.
Sydney Carton develops the habit of watching and speaking to Lucie as she waits on a Paris street corner each day, hoping that Darnay will be able to see her from his prison window. As a gesture of his love for Lucie, Carton maintains this routine to offer support and comfort during such a difficult time.
In "A Tale of Two Cities," Charles Darnay was arrested and sent to the La Force prison in Paris.
William Sidney ( or Sydney) Porter. he was an ex-con who embezzled money from a bank and did prison time for this crime.
He was a shoemaker while he was in prison