Lord Barkis Bittern is a character from the novel "David Copperfield," written by Charles Dickens. He is portrayed as a wealthy and somewhat pompous man who seeks to marry Emily, a young woman in the story. His character is often seen as a representation of social status and the complexities of relationships in Victorian society. In the narrative, Lord Barkis is known for his catchphrase, "Barkis is willing," which he uses to express his intentions. His character adds depth to the themes of love, ambition, and the pursuit of happiness, highlighting the contrasts between different social classes in the story.