At the beginning of the story, is there anything about young goodman brown himself that seems, you know, evil? I need evidence.

From the start, we learn that Brown's purpose is evil. From the text....

With this excellent resolve for the future, Goodman Brown felt himself justified in making more haste on his present evil purpose. He had taken a dreary road, darkened by all the gloomiest trees of the forest, which barely stood aside to let the narrow path creep through, and closed immediately behind. It was all as lonely as could be; and there is this peculiarity in such a solitude, that the traveller knows not who may be concealed by the innumerable trunks and the thick boughs overheard; so that, with lonely footsteps, he may yet be passing through an unseen multitude.