Thoreau presents himself as the Everyman who simply did what everyone should consider doing — not as a saint or a hermit but as a practical experimenter. This modesty is partly real and partly rhetorical. He is Harvard-educated, connected to the most powerful intellectual circle in New England, without dependents, and living on borrowed land. His accessibility as a narrator depends on not acknowledging these advantages too fully. What makes him genuinely compelling is that the experiment was real, the accounts are accurate, and the thinking is honest even when the self-presentation is not.

Emerson is never named in Walden but is present everywhere — as the owner of the land, the unnamed 'poet-philosopher' who visits in winter, and the intellectual context against which Thoreau defines himself. Walden can be read as Thoreau's extended argument that Transcendentalism must be practiced, not merely preached. Where Emerson wrote essays about self-reliance, Thoreau built a cabin. The relationship is one of the great mentor-student ruptures in American intellectual history.

John Field appears only in Baker Farm, but the chapter is among the most important in the book for what it reveals about Thoreau's limitations. Field is a recently arrived Irish immigrant, working harder than Thoreau has ever worked, trapped by poverty and the economic system in ways Thoreau cannot see because he is inside his own freedom. Thoreau's advice to Field (eat less meat, work fewer hours) fails because it ignores the structural conditions of Field's life. The portrait is simultaneously honest and damning — honest because Thoreau admits the advice failed, damning because he doesn't understand why.

Therien is the figure Thoreau most admires and most condescends to simultaneously. He is physically magnificent, naturally intelligent, possessing what Thoreau calls 'rare common sense and original and inexhaustible good humor.' He reads Homer in French. But by Thoreau's account, he has never thought philosophically — his mind is 'unexplored wilderness.' Thoreau's portrait reveals his own class assumptions about the relationship between intellectual cultivation and human value: he genuinely likes Therien while being unable to see him as an intellectual equal.

Thoreau's neighbors appear collectively rather than individually — they are the men who inherited farms and their debts, who work to pay mortgages that own them rather than the other way around. They are not villains but victims of a system they mistake for natural law. They evaluate Thoreau's bean-field by commercial standards and find it wanting. Their judgment is the benchmark against which Thoreau measures his own.

The loon appears throughout the autumn chapters as Thoreau's best opponent — always diving before he can approach, always surfacing where he doesn't expect, always laughing its wild call. In the autumn chapter devoted to it, the loon wins every round of the pursuit game it plays with Thoreau. This is the book's most honest encounter: wild nature cannot be caught, predicted, or domesticated. The loon doesn't care about Thoreau's philosophy. It simply dives.