He earns extra money as a resurrection man removing bodies from their graves for sale to medical schools and students as cadavers.
Back in England, he helps Sydney Carton "get something" on the paid government witness and spy, John Barsad.
Before leaving Paris, Cruncher will renounce grave robbing and resolve to be more gentle with his wife, toward whom he had been abusive physically and verbally.
In the 1980 TV Movie A Tale of Two Cities, Jerry Cruncher is portrayed by George Innes.
In the 2008 Broadway musical adaptation of 'A Tale of Two Cities,' Jerry Cruncher was played by Craig Bennett.