The Oc - Season 1 'link' < Plus >

To offset Ryan’s brooding intensity, Schwartz created Seth Cohen (Adam Brody), a character who fundamentally altered the archetype of the television nerd. Seth is not a caricature of geekdom; he is a defense mechanism given flesh. His rapid-fire references to The Cure , comic books, and Star Wars are not just jokes—they are a shield against the emotional neglect he feels from his well-meaning but often distracted parents. Seth’s arc in Season 1 is the quiet tragedy of the golden child. He has everything and nothing. His obsessive pursuit of the girl-next-door, Summer Roberts (Rachel Bilson), is a masterclass in neurotic romance, but his more profound journey is toward accepting that his parents’ marriage—the bedrock of the show—is not as stable as it seems. The season’s most devastating subplot involves Seth discovering that his mother, Kirsten (Kelly Rowan), had a past affair with his idol, Jimmy Cooper. It is a betrayal that shatters his worldview, proving that the “perfect” Newport family is a lie. Seth’s humor, then, becomes a survival tactic, and Brody’s performance ensures that the laughter always carries a hint of tears.

. This arc evolves from Summer ignoring Seth to the two forming an unlikely, popular-girl-meets-geek romance. The Cooper Family Downfall: Marissa's father, Jimmy Cooper The OC - Season 1