“What’s all this?” said Mr. Jaggers. “You with an old father, and you with pleasant and playful ways?…Pip…this man must be the most cunning imposter in all London.”
– Charles Dickens
Great Expectations, Chapter 51. When Pip speaks of Wemmick’s “cheerful playful ways” at home with his elderly father, Jaggers is surprised. He calls Wemmick a “cunning imposter.” Highlighted here is Wemmick’s dual personality. At work as Jaggers’s clerk Wemmick is cold, focused and detached, but at home he is warm and caring.