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Paul Pfeiffer, The Wonder Years
Without Paul by his side, Kevin Arnold, the star and narrator of The Wonder Years, would never have conjured up the courage to talk to the love of his life, Winnie Cooper. Bespectacled and plagued by allergies, Paul is a steadfast friend who provides a voice of reason and caution when Kevin's teenage hormones get the best of him.
Though fans see Paul and Kevin grow apart during the series, we like to believe that they reconnected after college and went on to be lifelong friends.